1. Overview   Sodium 3-(benzothiazol-2-ylthio)-1-propanesulfonate (commonly called ZPS, CAS No.: 49625-94-7) is a vital organic electroplating additive. Its molecular structure contains benzothiazole ring, sulfhydryl group (-SH) and sodium propane sulfonate group. This unique structure endows it with excellent water solubility, ionic properties and chemical reactivity. It is widely applied in the electroplating industry, and plays a critical role especially in copper plating and precious metal electroplating processes, with core functions of optimizing coating quality and improving electroplating process stability.   2. Mechanism   The action mechanism of ZPS in electroplating is mainly based on the characteristics of active groups in its molecular structure, which is divided into three aspects:   As an active functional group, the sulfhydryl group (-SH) can adsorb on the cathode surface, enhance cathode polarization and increase the saturation of adsorbed atoms. Meanwhile, it introduces lattice defects, boosts nucleation quantity and hinders the diffusion of adsorbed atoms to growth centers, thereby achieving grain refinement. This process generates high overpotential by increasing polarization to ensure high saturation of adsorbed atoms, and raises the disorder of adsorbed atoms entering the lattice to further strengthen the grain refining effect. The benzothiazole ring features outstanding stability and adsorptivity, which assists sulfhydryl groups in strengthening adsorption capacity and reducing coating defects. The hydrophilicity of sodium propane sulfonate group enables uniform dispersion of the compound in aqueous electroplating systems to ensure consistent performance. It also improves compatibility with other water-soluble additives, laying a foundation for synergistic effects with polyethers, wetting agents and other additives.   3. Applications   3.1 Acid Copper Plating Process   Acid copper plating is the primary application field of ZPS. It delivers prominent performance in both conventional acid copper plating and phenol dye-based acid copper plating systems. As a key brightener component used in combination with polyethers and wetting agents, it forms high-brightness and high-ductility copper coatings and greatly improves surface quality of finished products, with specific advantages as follows:   Grain Refinement: Serving as a grain refiner, it significantly reduces coating grain size for a smoother and denser coating surface. It eliminates surface defects such as roughness and streaks, enhances surface finish, and improves coating ductility to prevent brittle cracking. This effect is particularly notable in phenol dye-based acid copper plating, effectively solving the common problem of coarse grains in such systems. Coating Performance Improvement: By optimizing the grain structure, it strengthens the adhesion between the coating and substrate to reduce peeling and flaking. It also enhances coating corrosion resistance, weakens environmental erosion and extends service life. It is widely used for copper plating of metal parts in automotive, construction and other industries to guarantee long-term structural integrity of components.   3.2 Precious Metal Electroplating Process   ZPS acts mainly as a stabilizer in the electroplating of precious metals such as gold and silver. It effectively prevents irregular deposition of precious metal ions on the cathode surface to ensure uniform and dense coatings, improves substrate adhesion, and minimizes defects like pinholes and pitting. Through the synergistic adsorption of benzothiazole rings and sulfhydryl groups, it stabilizes the electrochemical environment on the cathode surface and inhibits abnormal growth of precious metal grains, delivering uniform and bright coatings with upgraded wear and corrosion resistance. It is suitable for electroplating processing of high-precision products including precious metal ornaments and electronic components.   3.3 Precision Electronic Electroplating Process   ZPS plays an essential role in the manufacturing of precision electronic components such as PCB electroplating and copper plating for electronic connectors. Its grain refining and densification properties effectively enhance the electrical conductivity and corrosion resistance of electronic components, maintaining stable electrical performance during long-term service. Given the extremely high coating quality requirements of precision electronic electroplating, the addition of ZPS effectively avoids pinholes, cracks and other defects, ensuring packaging reliability and service life of electronic components. In addition, its superior water solubility and compatibility enable synergistic interaction with other additives in electronic electroplating systems to further optimize process stability.   4. Product Introduction   Wuhan Hugarise New Material Co., Ltd. supplies industrial-grade ZPS. It is widely adopted as a brightener for acid copper plating. When combined with polyethers and wetting agents, it produces bright and highly ductile coatings, and can be compounded with other sulfur-containing brighteners. In addition, it is applicable to electroless plating of precious metals as an electroplating stabilizer to avoid disordered metal deposition.  

  1 Overview   Fluorinated cationic surfactants are special surfactants that integrate the "three high and two phobic" properties of fluorocarbon chains (high surface activity, high heat resistance, high chemical stability, as well as water and oil repellency) with the functions of cationic hydrophilic groups. Thanks to the high electronegativity and strong shielding effect of fluorine atoms in their molecular structure, they exhibit incomparable advantages over conventional surfactants in interfacial performance, stability and comprehensive functionality. They are widely used in fire protection, advanced materials, electronics, water treatment and other fields. With increasingly stringent environmental regulations, their applications are evolving toward high efficiency, eco-friendliness and customization.   2 Applications   2.1 Fire Protection Industry   Fluorinated foam fire extinguishing agents are high-efficiency products for flammable liquid fires, widely applied in petrochemicals, warehousing and logistics, aerospace, forest protection and other scenarios. Their core function is to reduce the interfacial tension between water and oil, forming a water film and foam layer on the surface of hydrocarbon liquids to extinguish fires through oxygen isolation, combustion material cooling and oxygen concentration dilution.   Traditional fluorinated foam agents mainly adopt perfluorooctane sulfonate (PFOS), which is strictly restricted due to environmental persistence and health hazards. Short-chain fluorinated cationic surfactants have become the core alternative. When compounded with anionic surfactants, they can reduce dosage and overall cost. These short-chain products retain the superior fire-extinguishing performance of fluorocarbon surfactants while greatly lowering the risk of bioaccumulation, making them the mainstream development trend of eco-friendly fluorinated foam agents.   2.2 Material Industry   In material science, polymerizable fluorinated cationic surfactants leverage the "three high and two phobic" properties and unique polymerizable groups to play a vital role in fluorinated emulsion polymerization. They effectively solve the problem that residual conventional surfactants impair polymer performance.   These surfactants reduce surface tension and stabilize emulsion systems during polymerization, and can copolymerize with fluorinated monomers via polymerizable groups. Covalently bonded to polymer molecular chains, they avoid surfactant migration and shedding, thereby greatly improving the overall performance of fluoropolymers.   They are extensively used in coatings, adhesives, textiles, leather and other industries. For instance, in fluorinated coating polymerization, the addition of polymerizable fluorinated cationic surfactants enhances emulsion stability, reduces latex particle size and ensures uniform distribution. The finished coatings deliver outstanding water resistance, chemical corrosion resistance and weatherability. In textile modification, they endow fabrics with water & oil repellency, antibacterial and antistatic properties. In addition, quaternary ammonium and amine-type fluorinated cationic surfactants can lower the surface tension of water to approximately 20 mN/m, further optimizing the interfacial properties of materials.   2.3 Electronics Industry   The electronics industry demands high purity and stability for cleaning agents and formula systems. With excellent surface activity and chemical stability, fluorinated cationic surfactants serve as core raw materials for electronic-grade cleaning solutions and high-end formulations.   In terms of product structure, C8–C10 short-chain fluorinated cationic products dominate with a market share of 62.3%, mainly used in electronic-grade silicon wafer cleaning formulas. They effectively reduce the surface tension of cleaning fluids, strengthen the penetration and removal of surface contaminants on silicon wafers, and achieve residue-free cleaning of precision components, preventing pollutants from compromising the performance and service life of electronic parts.   Furthermore, customized high-end fluorinated cationic surfactants (such as dicationic or branched fluoroalkyl types) are applied in the R&D of special electronic-grade material formulas, meeting the production needs of high-end electronic devices and supporting the refinement and upgrading of the electronics industry.   2.4 Water Treatment Industry   Per- and polyfluoroalkyl substances (PFAS) pose severe environmental persistence and health risks, and their efficient removal has become an urgent challenge in water treatment. Traditional high-pressure membrane processes feature high energy consumption and costs. Although ultrafiltration membranes operate at low pressure with high flux, their pore size is much larger than PFAS molecules, resulting in poor interception efficiency. Fluorinated cationic surfactants provide a low-energy solution to this issue.   Studies show that cationic surfactants (e.g., CTAB) can undergo in-situ self-assembly with PFAS molecules on ultrafiltration membrane surfaces to form nanocomposites or micelles, significantly improving PFAS rejection rate. At a CTAB concentration of 0.14 mmol/L, the rejection rate of perfluorooctanoic acid (PFOA) rises from 30.3% to 99.1%, and remains 97.9% even at a low concentration of 0.028 mmol/L.   Relying on the strong hydrophobic interaction between fluorocarbon chains and PFAS molecules, this technology maintains high efficiency under a wide pH range (1–9), high ionic strength and natural organic matter conditions. Its unit water treatment cost is far lower than nanofiltration, reverse osmosis and other processes, offering a new approach for the engineered removal of PFAS. In the future, eco-friendlier fluorinated cationic surfactant alternatives will further accelerate the large-scale application of this technology.   3 Product Introduction   Wuhan Hugarise New Material Co., Ltd. launches a series of perfluorohexylethyl cationic surfactants:   Trimethyl-3-[[(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)sulphonyl]amino]propylammonium iodide  (CAS No. 94088-80-9).   It exhibits excellent wetting, leveling and spreading properties, and can be widely used as an eco-friendly foam fire extinguishing agent additive, functional auxiliary for fluorinated emulsions, water treatment additive and other industrial applications.

  1. Overview   Perfluorohexylethyl amphoteric surfactants integrate the superior properties of fluorinated surfactants and betaine surfactants. The perfluorohexylethyl group in its molecular structure endows the product with extremely low surface tension, excellent heat resistance, chemical stability and weather resistance. Meanwhile, the betaine structure ensures good compatibility, low irritation and biocompatibility. Free of PFOA and PFOS, this product features high environmental friendliness. Thanks to the above characteristics, such surfactants have been widely applied in industries including industrial manufacturing, fire protection, new materials and daily chemicals.   2. Applications   2.1 Fire Protection Industry   As a key raw material for eco-friendly foam fire extinguishing agents, perfluorohexylethyl amphoteric surfactants possess outstanding surface activity and foaming stability. They can effectively reduce the surface tension of aqueous solutions and rapidly form a dense and stable foam layer covering the surface of combustibles, achieving oxygen isolation, cooling and fire suppression. They are especially suitable for difficult-to-control fires such as oil fires and organic solvent fires.   In practical application, this type of surfactant can be compounded with other ingredients to prepare multiple high-performance foam extinguishing agents. For instance, as a fire-extinguishing emulsifier, it can be blended with ammonium polyphosphate, xanthan gum and ethylene glycol to produce eco-friendly water-based fire extinguishing agents that meet storage and usage requirements under high temperature (+63℃) and low temperature (-42℃), featuring high efficiency, cold resistance and environmental protection. It can also be compounded with sodium methyl cocoyl taurate, anti-burning agents and silicone-containing surfactants to develop low-temperature resistant, seawater-resistant and high-multiple miscible foam extinguishing agents. The foaming multiple can reach 14.7, and the 25% drainage time is up to 19.4 minutes. Its fire extinguishing efficiency and anti-burning performance are significantly better than traditional extinguishing agents. With simple preparation processes and low cost, it is convenient for large-scale industrial production.   In addition, it can replace restricted perfluorooctane sulfonates in the production of aqueous film-forming foam agents. The surface tension of its 0.1% aqueous solution can be as low as 13.58 mN/m. With superior fire extinguishing and anti-burning properties compared with traditional components, it serves as an essential option for the green upgrading of the fire protection industry.   2.2 Industrial Cleaning Industry   Relying on excellent surface activity, permeability and chemical resistance, perfluorohexylethyl amphoteric surfactants are widely used in various industrial cleaning scenarios, especially for occasions requiring high cleaning precision and anti-corrosion performance. They can efficiently remove oil stains, dirt, dust and other impurities without damaging the cleaned substrates.   In the field of metal cleaning, it can be used as a core component to formulate water-based cleaning agents for ferrous metals, with a typical dosage of 0.01～0.5% by mass. When compounded with sodium dodecyl benzene sulfonate and fatty alcohol polyoxyethylene ether sulfate, the cleaning efficiency can reach 90%. It maintains stable properties, causes no corrosion to metal substrates, and reduces the total dosage of surfactants for better environmental performance.   In electronic cleaning, it is applicable to precision electronic components such as semiconductors and circuit boards. Its ultra-low surface tension enables penetration into tiny gaps of components to efficiently remove residual contaminants including photoresist and flux. With good insulation and chemical stability, it will not impair the performance of electronic components.   Furthermore, it is suitable for cleaning industrial equipment, pipelines and floors with both decontamination and anti-scaling effects. It exhibits great compatibility with other ionic and amphoteric surfactants, and the compound ratio can be adjusted according to cleaning demands to adapt to diverse application scenarios.   2.3 Material and Coating Industry   In the material and coating sector, perfluorohexylethyl amphoteric surfactants are mainly used as emulsifiers, dispersants and modifiers. They can significantly improve the stability, water resistance, weather resistance and surface properties of products, and are widely adopted in the production of latex paint, alkyd emulsion, printing ink, polymer emulsion and other products.   In the preparation of coatings and emulsions, it acts as a high-efficiency emulsifier to effectively reduce oil-water interfacial tension, form a uniform and stable system, and avoid delamination and demulsification. It also improves the leveling and adhesion of coatings, forming smooth and compact coating surfaces with enhanced water and stain resistance.   In the ink industry, it functions as a dispersant and wetting agent to optimize the dispersion of pigments and fillers, prevent pigment agglomeration, and improve printability for clearer and brighter printed patterns. Meanwhile, it strengthens the water resistance and friction resistance of ink.   Moreover, it can be used as a modifier and stabilizer for polymers to prepare high-performance polymer emulsions with upgraded weather resistance, water resistance and chemical resistance. It also serves as a release agent and lubricant in polymer processing, reducing friction coefficient during production, boosting efficiency and improving surface finish of finished products.   3. Product Introduction   Wuhan Wuhan Hugarise New Material Co., Ltd. launches a series of perfluorohexylethyl amphoteric surfactants:   Trimethyl-3-[[(3,3,4,4,5,5,6,6,7,7,8,8,8-tridecafluorooctyl)sulphonyl]amino]propylammonium iodide    (CAS No. 34455-29-3).   This product delivers excellent wettability, leveling performance and spreadability. It is an eco-friendly additive widely used in foam fire extinguishing agents, industrial & electronic cleaning agents, coating modifiers and other fields.

1. Overview Silane oligomers are a class of silane coupling agents with a specific structure, typically consisting of 3–5 repeating units, synthesized using selected silane coupling agents as base materials along with specific end-capping agents, catalysts, and stabilizers. Compared to conventional silane coupling agents, they feature longer molecular chains, improved chain flexibility, and better system stability, offering enhanced adhesion, boiling water resistance, chemical resistance, abrasion resistance, heat resistance, weatherability, and unique flexibility. Octylsilane oligomers are specialty chemicals with a siloxane (Si–O–Si) backbone and octyl (C₈H₁₇) side chains. They combine the hydrophobicity and flexibility of organic hydrocarbon chains with the stability of inorganic silicon frameworks. Their molecular structure can be tailored by adjusting the degree of polymerization to meet different application requirements. Common forms include viscous liquids, transparent pearl-like materials, and translucent flakes. They are widely used in building protection, material modification, coatings, and other fields, offering advantages such as low VOC emissions, high stability, and uniform film formation, making them key additives for improving product performance. 2. Applications 2.1 Building Protection Octylsilane oligomers are primarily used for waterproofing, stain resistance, and durability enhancement of building substrates. The non-polar octyl chains provide strong hydrophobicity, effectively blocking water penetration, while reacting with hydroxyl groups on inorganic substrates such as stone and concrete to form a durable protective layer without affecting the substrate's appearance or breathability. Specific applications include deep protection of stone (marble, granite, etc.), preventing water absorption, efflorescence, weathering, and stain adhesion, thereby extending service life; surface treatment of porous substrates such as concrete and mortar, forming a waterproof network inside the substrate to reduce cracking and corrosion caused by moisture ingress; and as a modifier for building sealants to improve weatherability and adhesion stability for outdoor use, especially in humid environments. Patent by Jiangsu Ambassador Tongfeng Paint Co., Ltd.: "A Method for Preparing Isooctyltriethoxy Paste Anti-Corrosion Coating" – This invention discloses an isooctyltriethoxy paste anti-corrosion coating and its preparation method. The formulation includes isooctyltriethoxysilane, 1,2-bis(trimethoxysilyl)ethane, and activated diamond to form a waterproof-wear-resistant layer on concrete surfaces, achieving anti-seepage, waterproofing, and abrasion resistance. 2.2 Material Modification Octylsilane oligomers are important additives for modifying high-performance materials, primarily improving the compatibility and dispersion of inorganic fillers in organic matrices, while enhancing hydrophobicity, thermal stability, and mechanical properties. They are widely used in polymer and powder material modification. In polymer modification, they are added to plastics, rubber, and resin systems to reduce surface energy, improve water resistance, oil resistance, and weatherability, and enhance filler dispersion, reducing agglomeration while improving toughness and processability. In powder modification, they are used to treat fillers such as calcium carbonate, talc, and thermally conductive fillers, imparting lipophilicity for better integration with organic resins. Particularly in thermal filler modification, they significantly improve the extrudability and thermal stability of thermal gels and pads, outperforming monomeric silane coupling agents and effectively slowing hardness increase during aging, extending product life. They are also used in interface modification of insulation materials to improve water resistance and structural stability. Patent by Nanzhong Dingcheng New Material Technology Co., Ltd.: "Preparation Method of Reinforced Waterproof and Anti-Mold Organosilicon Waterproofing Agent" – This invention involves adding octyltriethoxysilane, silicone resin prepolymer, and nonionic surfactant, stirring uniformly, then adding deionized water and buffer under high-shear emulsification to obtain a waterproofing agent emulsion. Patent by Shandong Beike Waterproof Technology Co., Ltd.: "A Fast-Curing Environmentally Friendly Grouting Material and Its Preparation Process" – This invention provides a fast-curing, eco-friendly grouting material containing 4–10 parts octylsilane, enabling rapid curing, reduced construction time, good mechanical properties, durability, and stability, with minimal environmental impact. 2.3 Coatings and Coating Materials Octylsilane oligomers are effective modifiers for coating systems, significantly improving adhesion, water resistance, weatherability, and stain resistance. They are suitable for both water-based and solvent-based systems, offering lower VOC emissions and better storage stability than conventional monomeric silane additives. Specific applications include modification of water-based coatings to enhance adhesion to metals, glass, and wood, while improving hydrophobicity and stain resistance, forming dense protective layers that resist water and oil ingress, reducing coating detachment and cracking; use in industrial coatings, especially for outdoor and automotive exterior coatings, to improve weatherability and UV resistance, extending coating life; preparation of high-performance anti-fouling coatings leveraging their high oil and water repellency for kitchen utensils and industrial equipment exposed to grease, facilitating easy cleaning; and use in metal surface pretreatment to improve corrosion resistance and provide a good base for subsequent painting. Patent by Wuhan Tongfa Technology Co., Ltd.: "A Corrosion-Resistant Waterborne Paint and Its Preparation Process" – This invention addresses the poor saline corrosion resistance of waterborne paints by adding 2.5–4.5 parts of isooctyltriethoxysilane, resulting in a waterborne paint with excellent saline corrosion resistance and overall good application performance. 3. Product Introduction Wuhan Hugarise New Material Co., Ltd. offers an octylsilane oligomer product (PCU-H13), which is substitute of product Evonik Protectosil® WS 670.

1 Overview Silane oligomers are a class of silane coupling agents with 3-5 degrees of polymerization, synthesized from specific silane coupling agent bases, supplemented with terminating agents, catalysts, and stabilizers. Compared to conventional silane coupling agents, they offer longer molecular chains, better molecular flexibility, improved system stability, and provide enhanced adhesion, boiling water resistance, chemical resistance, abrasion resistance, heat resistance, weather resistance, and unique flexibility. Mercapto silane oligomers are oligomeric organosilicon compounds containing reactive mercapto (-SH) and hydrolyzable siloxane structures. Compared to monomeric silanes, they offer more uniform film formation, greater stability, higher functionality, and superior reactivity. Their unique chemical structure enables wide applications in surface treatment, coatings, environmental protection, and solves many pain points of traditional materials. 2 Applications 2.1 Metal Surface Treatment Primarily used for anti-corrosion passivation and surface modification of metals, replacing traditional phosphating and chromate treatment processes, solving environmental issues such as phosphorus content, heavy metals, and waste sludge generation, while improving metal surface performance. Siloxane groups hydrolyze to form Si-OH, which condenses with metal surface hydroxyl groups (Fe-OH, Al-OH) to form a dense Si-O-M (M = metal ion) chemical bonding film, isolating air, moisture, and other corrosive media. The mercapto group (-SH) forms strong chelates with metal ions such as Cu, Ag, Au, Fe, and Zn, further inhibiting metal oxidation, corrosion, and discoloration, while enhancing subsequent coating or adhesive adhesion. Qingdao Kunji New Material Technology Co., Ltd. published patent "A High-Durability Metal Corrosion Inhibitor and Its Preparation Method," where γ-mercaptopropyltrimethoxysilane is hydrolyzed and reacted with triethyl phosphite to produce bis(γ-mercaptopropyl)phosphonate-modified polysiloxane. The product achieves long-term corrosion inhibition through chemical adsorption of mercapto and phosphonate groups with metals, chelation via the imidazolidinone ring, and water repellency from the fluorocarbon chain, significantly enhancing metal protection in harsh environments. Wuxi Yongxing Metal Hose Co., Ltd. published patent "A Preparation Method of Anti-Corrosion Treatment Fluid for Metal Bellows," where mercaptopropyltriethoxysilane is added to the formulation. The resulting anti-corrosion treatment fluid significantly improves the corrosion resistance of treated metal bellows without any adverse effects. Jiangsu Dafang Metal Powder Co., Ltd. published patent "A Modified Ultrafine Spherical Copper Powder for Photovoltaic Silver-Coated Copper and Its Preparation Method," where mercapto silane pretreatment constructs a 2-5 nm molecular-level bonding layer on the copper powder surface. Using an EDTA-sodium citrate composite complexation system at 40-45°C, a dense 80±5 nm silver layer is deposited. The resulting spherical copper powder reduces slurry rheological shear stress, effectively lowers printed grid line breakage rate, exhibits good oxidation resistance, and meets the core conductivity requirements of HJT cells. 2.2 Coatings Mercapto silane oligomers are used in coatings as modifiers, crosslinking agents, or adhesion promoters to improve adhesion, weather resistance, abrasion resistance, and corrosion resistance, while enhancing application properties and suitable for waterborne coating systems. 2.2.1 Coating Adhesion Promoter Acting as a "bridge" between coating and substrate, the siloxane group bonds to the substrate (metal, glass, concrete, etc.), while the mercapto group crosslinks with resin systems (polyurethane, epoxy, acrylic) in the coating, significantly improving adhesion and solving issues such as peeling, detachment, and blistering. Guangzhou Jointas Chemical Co., Ltd. published patent "A Waterborne Low-Temperature Baking Paint and Its Preparation Method and Application," where waterborne mercapto silane is added. The resulting waterborne low-temperature baking paint rapidly crosslinks and cures at 90-110°C, and the cured film exhibits excellent adhesion to multiple substrates along with superior corrosion and wear resistance. 2.2.2 Coating Modifier Leveraging the high reactivity of mercapto groups and the weather resistance/water repellency of siloxanes, the oligomer modifies coating resins to improve weather resistance, abrasion resistance, water resistance, and corrosion resistance, while reducing VOC content and enhancing environmental performance. Keshun Waterproof Technology Co., Ltd. published patent "A Multiple-Curing PMMA Elastic Waterproof Coating Composition and Its Preparation Method," where mercapto silane coupling agent is added. The mercapto group undergoes Michael addition click chemistry with double bonds under free radical initiation, introducing organosiloxane structures onto PMMA side chains for moisture curing. Additionally, the mercapto group acts as a chain transfer agent, effectively controlling PMMA molecular weight during free radical polymerization, reducing large PMMA molecule formation, and improving PMMA conversion rate. Furthermore, the mercapto compound enhances air-drying properties, counteracts oxygen inhibition, and achieves a smooth coating surface. 2.3 Environmental Protection Leveraging the strong chelation of mercapto groups with heavy metal ions and the curable nature of siloxanes, mercapto silane oligomers offer unique advantages in wastewater treatment, soil remediation, and other environmental fields, with no secondary pollution, aligning with green environmental principles. When injected into heavy metal-contaminated soil, the mercapto groups chelate with heavy metal ions to form stable, insoluble complexes, immobilizing the heavy metal ions, preventing their migration and diffusion, and reducing contamination of groundwater and crops. Meanwhile, the siloxane groups improve soil permeability and stability, promoting soil microbial activity and accelerating soil remediation. Tianjin Tianrun Yikang Environmental Technology Co., Ltd. published patent "A Mercapto-Modified Clay for Heavy Metal Adsorption and Its Preparation Method," where mercaptopropyltrimethoxysilane, ethanol, and deionized water are mixed to prepare a mercapto silane solution. The solution is mixed with acidified clay, stirred repeatedly, and the reaction product is collected, dried, and ground to obtain mercapto-modified clay. The resulting product exhibits strong adsorption capacity, fast adsorption rate, no secondary pollution, broad applicability, and a simple, low-cost preparation method suitable for large-scale application. 3 Product Introduction Wuhan Hugarise New Material Co., Ltd. offers Mercapto Silane Oligomer (PCU-S80) , Substitute of Momentive CoatOSil T-Cure.  

Overview Silane oligomers are synthesized from structurally defined silane coupling agents, combined with specific end-capping agents, catalysts, and stabilizers, yielding oligomers with a degree of polymerization of 3–5. Compared to conventional silane coupling agents, they feature longer molecular chains, improved chain flexibility, better system stability, and offer enhanced adhesion, boiling water resistance, chemical resistance, abrasion resistance, heat and weather resistance, as well as unique flexibility. Epoxy-based silane oligomers are produced by hydrolyzing γ-(2,3-epoxypropoxy)propyltrialkoxysilane (e.g., KH560) under controlled conditions. They contain multiple reactive groups such as alkoxy and epoxy groups. The figure below shows the structure of KH560 oligomer.                                              Epoxy-based silane oligomers can enhance the adhesion and bonding strength between most common emulsions (e.g., waterborne epoxy, waterborne acrylic, waterborne polyurethane) and inorganic substrates such as metal, glass, ceramic, and concrete. Due to their high reactivity, they form strong covalent bonds with both the emulsion and the inorganic substrate, resulting in strong adhesion that is difficult to break. Under acidic conditions (approx. pH 4), the adhesion improvement is more pronounced. They are stable in water and maintain performance after long-term storage. Applications 2.1 Metal Surface Treatment Wuhan Disai New Materials Co., Ltd. patented A method for preparing silane oligomer aqueous solution for metal protection. The method involves mixing hydrolyzed epoxy silane and amino silane solutions, followed by ring-opening polymerization at 50–90°C for 0.5–2 h to obtain a silane oligomer aqueous solution. After coating on metal surfaces and drying, the resulting passivation film exhibits good corrosion resistance and high-temperature yellowing resistance. 2.2 Waterborne Coatings Nanjing Changjiang Paint Co., Ltd. patented A long-lasting waterborne phenolic epoxy conductive antistatic coating and its preparation method. The formulation includes Momentive CoatOSil MP200 (an epoxy-based silane oligomer), which forms strong covalent bonds with waterborne organic resins, inorganic pigments/fillers, and substrates, improving adhesion. Shanghai Huayi Fine Chemical Co., Ltd. patented An aviation fluid-resistant waterborne coating and its preparation method and application. The formulation includes Momentive CoatOSil MP200, which forms Si–O–Si networks through siloxane condensation, increasing crosslinking density, improving resistance to phosphate ester hydraulic fluids, and enhancing adhesion, water resistance, impact resistance, and salt spray resistance. Shandong Bengteng Paint Co., Ltd. patented A thick-applied waterborne epoxy coating for storage tanks and its preparation method and application. The formulation includes Momentive CoatOSil MP200. By optimizing component ratios and preparation processes, the coating exhibits excellent physical properties, chemical resistance, water/acid/alkali resistance, good anticorrosion performance, stable conductivity, and excellent buildability, improving construction efficiency. Suzhou Jiaweixin New Materials Co., Ltd. patented A preparation method for waterborne epoxy-modified silicone high-temperature anti-corrosion coatings, where alkoxysilane oligomers are added to prepare a waterborne epoxy-modified silicone emulsion. Product Introduction Wuhan Hugarise New Material Co., Ltd. offers an epoxy-based silane oligomer (PCU-K11), comparable to imported products such as Momentive CoatOSil MP200, Evonik Dynasylan® HYDROSIL 2926, and Shin-Etsu KR-516.    

  1 Overview Silane oligomers are synthesized from specific silane coupling agents as the base material, combined with selected end-capping agents, catalysts, and stabilizers, resulting in a polymerization degree of 3–5. Compared to conventional silane coupling agents, they feature longer molecular chains, enhanced chain flexibility, improved system stability, and offer superior adhesion, boiling water resistance, chemical resistance, abrasion resistance, heat resistance, weatherability, and unique flexibility. Amino silane oligomers are low-molecular-weight polymers formed by controlled hydrolysis and condensation of amino silane monomers. They combine the reactivity of organic amine groups with the excellent properties of the siloxane backbone. Compared to traditional silane monomers, they provide more uniform film formation, higher storage stability, and improved functionality, acting as a “molecular bridge” between organic systems and inorganic substrates. They hold irreplaceable value in various industrial fields such as metal surface treatment, baking paints, and waterborne coatings. 2 Applications 2.1 Metal Surface Treatment Metal surfaces are prone to oxidation and corrosion in humid environments and exhibit weak interfacial adhesion with organic coatings and adhesives. Amino silane oligomers form a dense protective film on metal surfaces through chemical interaction while enhancing interfacial compatibility. They are key additives for metal surface modification, widely used in the treatment of steel, aluminum alloys, copper, and other metals, and are particularly suitable for environmentally friendly processes such as chromium-free passivation. The mechanism involves two aspects: first, the siloxane groups (Si–O–Si) in the amino silane oligomer hydrolyze to form silanol groups (Si–OH), which undergo condensation with hydroxyl groups (–OH) on the metal surface, forming stable Si–O–Metal covalent bonds and creating a uniform, dense silane film. Second, the amino groups (–NH₂) are highly polar and can react with reactive groups (such as epoxy and isocyanate) in subsequent coatings or adhesives, further enhancing interfacial bonding strength. Shenzhen Haolong New Material Technology Co., Ltd. published a patent titled A Composite Film Conversion Treatment Agent for Magnesium Alloy Surfaces and Its Application, disclosing a treatment agent consisting of three components: phosphorus-free and chromium-free A agent, B agent, and C agent. The A agent contains the silane coupling agent KH550. This treatment enables chromium-free and phosphorus-free chemical conversion, with stable performance and environmentally friendly waste liquid. The resulting film exhibits high corrosion resistance (salt spray resistance exceeding 48 hours) and good conductivity, showing promising application in the production of 3C magnesium alloy mobile phone frames. Hefei Puqing New Material Technology Co., Ltd. published a patent titled A High-Adhesion, Low-Viscosity, Chromium-Free Fingerprint-Resistant Liquid for Galvanized Aluminum-Zinc Steel Sheets. By adding silane coupling agents KH550 and KH560 in a specific sequence, combined with a composite matrix of waterborne epoxy resin, acrylic resin, and polyurethane resin, and reinforced with nano-silicon solution, a three-dimensional crosslinking network is formed. The resulting coating shows no detachment in tape peel tests, no black spots after 120 hours of salt spray, and viscosity below 30 seconds, offering excellent corrosion resistance, conductivity, and processability, effectively resolving the black spot defect caused by coating detachment in galvanized aluminum-zinc steel sheets. 2.2 Waterborne Coatings Waterborne coatings use water as the dispersion medium, offering environmental friendliness, solvent-free safety, and non-toxicity. They have been widely adopted in construction, furniture, automotive, and industrial anticorrosion sectors as replacements for solvent-based coatings. However, they suffer from inherent drawbacks such as poor water resistance, insufficient adhesion, and suboptimal film-forming properties. Amino silane oligomers serve as multifunctional additives to effectively address these limitations while enhancing overall coating performance, making them a key component in waterborne coating formulations, including primers, topcoats, adhesives, and sealants. Xinlongtu Environmental Technology (Dalian) Co., Ltd. published a patent titled A Waterborne Organic-Inorganic Hybrid Zinc-Rich Coating and Its Preparation Method, disclosing a coating composition comprising water-soluble acrylic resin, dispersant, substrate wetting agent, defoamer, cosolvent, anti-settling agent, zinc powder, waterborne inorganic resin, and amino silane coupling agent. The coating forms a dense film through organic-inorganic hybrid crosslinking, providing long-term anticorrosion and durability. It also addresses issues such as cracking, sagging during application, and challenges related to zinc powder dispersion and dust pollution commonly associated with existing waterborne inorganic zinc-rich coatings. Beijing Oriental Yuhong Waterproof Technology Co., Ltd. published a patent titled A Waterborne Asphalt Coating and Its Preparation Method, involving a composition comprising 40–80 wt% emulsified modified asphalt, 10–60 wt% polymer emulsion, 0.1–0.5 wt% amino silane solution, and 0–30 wt% filler. The resulting coating exhibits significantly improved mechanical properties compared to conventional waterborne asphalt coatings and can be used in combination with membranes for sidewall waterproofing. Hunan Kaisili New Material Co., Ltd. published a patent titled A Catalytic Method and Application Method for Waterborne Inorganic Nanocoatings, describing a process involving mixing a coupling agent with a catalyst, adding the mixture to a nano-oxide sol, stirring and reacting at 35–70°C for 0.5–5 hours, diluting with water to achieve a solid content of 30–50%, and cooling to obtain a liquid waterborne inorganic nanocoatings. Curing is achieved through heating or by using amino silane or its hydrolysate. This method eliminates the need for pH adjustment using acids or bases, expanding the coating’s application range while improving solubility and stability. 2.3 Waterborne Baking Paints Baking paints offer high decorative appeal and durability and are widely used in automotive, furniture, home appliances, instrumentation, and other fields. Key requirements include strong adhesion to substrates, smooth surfaces, scratch resistance, aging resistance, and chemical resistance. Amino silane oligomers function as adhesion promoters, crosslinking agents, and leveling agents in baking paints, effectively addressing common issues such as poor adhesion, inadequate leveling, and insufficient weather resistance. They are particularly compatible with mainstream baking paint systems such as epoxy, polyurethane, and acrylic resins. Taiwan Dachamp Paint Products Co., Ltd. published a patent titled A Boiling-Water-Resistant High-Temperature Baking Glass Protective Coating and Its Preparation Method. The formulation incorporates a waterborne amino silane coupling agent, which provides strong adhesion to glass substrates and meets the requirements for adhesion and resistance to 1-hour boiling water exposure. The preparation method is characterized by simplicity, low production cost, and suitability for large-scale production. 3 Product Introduction Wuhan Hugarise New Material Co., Ltd. offers a silane oligomer product: Amino Silane Oligomer, which is positioned as a counterpart to imported products such as Evonik Dynasylan® HYDROSIL 1151 and Momentive Silquest Y-15744.  

1. Overview Silane oligomers are a class of silane coupling agents synthesized from specific silane coupling agent bases, combined with  specific end-capping agents, catalysts, and stabilizers, typically having a degree of polymerization of 3 to 5. Compared to conventional silane coupling agents, they possess longer molecular chains, better molecular chain flexibility, and improved system stability. They provide enhanced adhesion, boiling water resistance, chemical resistance, abrasion resistance, heat resistance, weather resistance, and unique flexibility. Vinyl Silane oligomer is a type of organosilicon material with a special molecular structure. Their molecules contain both vinyl groups capable of participating in free radical polymerization and silane alkoxy groups that can hydrolyze to form reactive silanol groups. This dual functionality enables them to act as "molecular bridges" between organic and inorganic materials, combining multiple functions such as adhesion promotion, cross-linking, and interface modification. Compared to small-molecule vinylsilane monomers, they offer greater performance stability and application advantages, making them widely used in metal surface treatment, baking paints, waterborne coatings, and UV coatings. 2. Applications 2.1 Metal Surface Treatment In practice, metal surfaces are treated by dipping, spraying, or brushing. After treatment, the surface transitions from hydrophilic to hydrophobic, effectively isolating corrosive media such as water and oxygen, thereby enhancing the metal's corrosion resistance. For example, in the surface treatment of automotive parts and hardware products, treated metals exhibit improved adhesion of subsequent spray coatings, significantly enhanced salt spray resistance, and reduced issues such as coating peeling and blistering, extending the service life of metal products. Additionally, when used in combination with mercapto- and epoxy-functional silane oligomers, adhesion to metal substrates can be further improved, making it suitable for demanding metal primer systems. 2.2 Waterborne Coatings In waterborne coatings, Vinyl Silane Oligomers are used primarily in three ways: first, as an adhesion promoter—the silanol groups generated by hydrolysis bond with hydroxyl groups on the substrate surface, while the vinyl groups undergo polymerization with resins in the waterborne coating (e.g., waterborne acrylic resins, waterborne polyurethane resins), enhancing coating adhesion; second, as a crosslinking agent—they undergo crosslinking reactions during film formation, increasing the crosslink density of the coating and improving its hardness and abrasion resistance; third, as a surface modifier—they improve the leveling and stability of the waterborne coating, reducing sedimentation and separation, and enhancing application performance and storage stability. Shandong Benteng Paint Co., Ltd. published a patent titled "A Method for Preparing a Waterborne Alkyd Anticorrosive Coating," in which vinylsilane is added. During the blending of raw materials, the siloxane bonds on the side chains of the modified alkyd resin, those on the surface of the modified filler, and those on the surface of vinyltriethoxysilane hydrolyze. Under the action of zinc chloride, they form a silsesquioxane structure. This structure enhances the chemical stability of the coating. Meanwhile, the organosilicon structure in the modified alkyd resin molecules further improves the coating's chemical stability. In combination with the modified filler, it significantly enhances the coating's anticorrosive effect and, together with the modified filler, increases the impact resistance of the coating film. 2.3 Waterborne Baking Paints In baking paint formulations, Vinyl Silane Oligomers serve as crosslinking agents and adhesion promoters. On one hand, the vinyl groups in the molecules undergo free radical polymerization with resins in the baking paint (e.g., polyester resins, acrylic resins, epoxy resins) during high-temperature curing, increasing the crosslink density of the coating and making the coating structure denser. This enhances the hardness, abrasion resistance, and chemical resistance of the baking paint, effectively addressing issues such as soft coatings, easy scratching, and poor solvent resistance. On the other hand, the silanol groups generated by hydrolysis bond with hydroxyl groups on the substrate surface (metal, glass, plastic, etc.), improving the adhesion of the baking paint to the substrate. Huizhou Shuangxinda Industrial Co., Ltd. published a patent titled "A Modified Acrylic Resin Waterborne Baking Paint," which uses waterborne acrylic modified resin and waterborne amino resin as the film-forming components. With an optimized ratio and under the self-catalysis of hexamethoxymethyl melamine resin and the coupling effect of vinyltrimethoxysilane, they form a strongly adhesive film layer. The composition uses waterborne chemicals, and the addition of a thickener gives the entire paint system a medium-to-low viscosity. Combined with wetting agents, leveling agents, and waterborne color pastes, the paint system exhibits uniform texture, low volatile content, and high solid content. The resulting baking paint film is characterized by high hardness, resistance to solvent rubbing, and non-flammability. 2.4 Waterborne UV Coatings During UV coating curing, ultraviolet light triggers photoinitiators to generate free radicals. The vinyl groups in vinylsilane oligomers rapidly participate in free radical polymerization, crosslinking with resins in the UV coating such as acrylates and unsaturated polyesters. This increases the crosslink density of the coating, thereby improving the hardness, abrasion resistance, and scratch resistance of the UV coating. Meanwhile, the silanol groups generated by hydrolysis bond with hydroxyl groups on the substrate surface, enhancing the adhesion of the UV coating to the substrate. This is particularly suitable for UV coating applications on difficult-to-adhere substrates such as glass, metal, and plastic, preventing issues like coating peeling and flaking. 3. Product Introduction Wuhan Hugarise New Material Co., Ltd. offers a silane oligomer product—Vinyl Silane Oligomer—which is comparable to the imported brand product Evonik Dynasylan® HYDROSIL 6490.                                            

  1. Overview         Perfluorohexylethyl sulfonates are a key class of per- and polyfluoroalkyl substances (PFAS), characterized by a perfluorohexyl group (-C6F13-) and an ethyl sulfonate group (-CH2CH2SO3-). They possess unique physicochemical properties, with the general molecular formula C8H4F13SO3·M (M represents a cation or hydrogen ion). Exhibiting excellent chemical and oxidative stability, they enhance the heat and moisture resistance of packaging materials in food packaging and composite printing. They also provide dual oleophobic and hydrophobic properties, finding broad applications in consumer goods, building insulation materials, and marine antifouling coatings. They serve as environmentally friendlier alternatives to the more polluting perfluorooctanesulfonyl compounds (PFOS).   2. Types         Perfluorohexylethyl sulfonates are primarily categorized by their ionic type and derived structures, with common varieties each having distinct properties.         The most typical is Perfluorohexylethyl Sulfonate Potassium Salt, a white crystalline powder with good water solubility and strong surface activity, commonly used as a wetting and dispersing agent in the textile and paper industries. Other types include Perfluorohexylethyl Sulfonate Sodium Salt, Perfluorohexylethyl Sulfonate Ammonium Salt, and Perfluorohexylethyl Sulfonyl Chloride.         Perfluorohexylethyl Sulfonic Acid, the core foundational compound of this class, has distinct properties. Products with a purity ≥98% are colorless liquids with excellent chemical and thermal stability. They can absorb wavelengths around 300 nm, offering UV absorption capabilities. They can also serve as ionic liquid components, providing unique solvation and electrical conductivity properties. Their outstanding surface activity effectively optimizes system wettability and reduces surface tension.   3. Applications 3.1 Electroplating Industry         During chrome plating, hydrogen and oxygen gas evolution causes chromic acid mist to escape, leading to environmental pollution, hazardous working conditions, and severe health risks for operators. While various measures were attempted historically, their effectiveness was limited. Using perfluoroalkyl sulfonates, a type of fluorocarbon surfactant, as chrome mist suppressors proved highly effective, solving the longstanding pollution problem from chrome plating tanks.         Earlier suppressors like PFS and F-53, developed in China in the 1980s and primarily composed of perfluorooctanesulfonate potassium salt (PFOS), significantly reduced airborne chromium concentrations. However, long-chain fluorocarbon surfactants like PFOS face restrictions due to bioaccumulation and environmental persistence. Many European countries now ban PFOS and similar long-chain compounds, favoring more degradable short-chain alternatives. Perfluorohexylethyl sulfonates, as representative short-chain fluorinated polymers, offer comparable chrome mist suppression effectiveness to PFOS while being more readily degradable, making them a popular global alternative.   3.2 Coatings Industry         As an environmentally friendlier alternative to PFOS/PFOA, perfluorohexylethyl sulfonates are widely used in coatings due to their excellent surface modification and performance enhancement capabilities. They are compatible with water-based, solvent-based, UV-curable, and high-solids coating systems.         For surface property modification, they can reduce coating surface tension below 20 mN/m, improving wetting and leveling on low-energy substrates like plastics and silane-treated metals. This minimizes defects such as craters, orange peel, and pinholes, enhancing coating smoothness and gloss uniformity, especially in high-solids and solvent-free coatings.         Their perfluorohexyl group provides strong hydrophobic and oleophobic properties, while the sulfonate group ensures good dispersion and interfacial anchoring. Upon curing, a dense fluorocarbon film forms, creating a "lotus leaf effect" for long-term antifouling, suitable for building exteriors, vehicle shells, and marine equipment. Combined with nano-SiO2 or TiO2, they can further enhance coating self-cleaning durability.         In corrosion-resistant and weather-resistant coatings, the chemical inertness and high-temperature resistance of the perfluorocarbon chain improve coating resistance to acids, alkalis, salt spray, and UV aging. They also enhance adhesion to metal substrates and barrier properties, making them suitable for harsh environments like marine engineering and chemical equipment.   3.3 Consumer Goods Industry         Leveraging their "three highs and two phobias" characteristics (high stability, high surface activity, high thermal stability; oleophobic, hydrophobic) and excellent surface activity, perfluorohexylethyl sulfonates had specific potential applications in cleaner formulations, though their environmental persistence now leads to strict controls.         In industrial and specialized cleaners, they significantly reduce system surface tension (below 20 mN/m), enhancing the penetration and emulsification of aqueous cleaners against oily stains. They are suitable for no-foam spray cleaning of metals and plastics, effectively removing stubborn grease while controlling foam. A post-cleaning invisible monomolecular layer aids surface re-wetting, reducing the tendency for surfaces to "fog" in high-humidity environments. In precision electronics cleaning, they assist in removing particles and oils with minimal residue.         In textile care, they can serve as water- and oil-repellent additives in fabric treatments, enhancing the stain resistance of garments, carpets, and other household textiles.   4. Product Introduction         Wuhan Hugarise New Material Co., Ltd. offers a series of fluorinated compounds including Perfluorohexylethyl Sulfonic Acid, Perfluorohexylethyl Sulfonate Potassium Salt, Perfluorohexylethyl Sulfonate Sodium Salt, Perfluorohexylethyl Sulfonate Ammonium Salt, and Perfluorohexylethyl Sulfonyl Chloride. These products serve as fluorinated surfactants, chemical reaction initiators, pharmaceutical intermediates, electroplating intermediates and more.