1.  Copper Foil Anti-Oxidation Treatment: Industry Background & Mainstream Processes         Copper foil serves as the core conductive substrate for PCBs, lithium batteries and precision electronic components, featuring excellent electrical conductivity and ductility. However, freshly electroplated copper foil has a highly active surface with unstable grains. It is prone to oxidation, discoloration and corrosion under air, high-temperature & high-humidity, as well as acidic and alkaline working conditions. This leads to degraded conductivity, poor interlayer adhesion and other defects, which seriously compromise the reliability of end products. Therefore, anti-oxidation treatment after electroplating constitutes a critical process in copper foil manufacturing.       The mainstream industrial process today is eco-friendly organic passivation protection, which replaces the traditional highly polluting chromate-based inorganic passivation process. Its core principle is that organic corrosion inhibitors form an ultra-thin, dense protective film on the copper foil surface via chemical coordination, adsorption and crosslinking. This film isolates oxygen, moisture and corrosive media to achieve long-term anti-oxidation and anti-corrosion effects without impairing the electrical conductivity, subsequent soldering and lamination performance of copper foil. The overall process flow is simple: surface cleaning, chemical film formation, water rinsing and low-temperature curing. It is suitable for mass production of various types of copper foil.         2.  Protection Mechanism of Benzotriazole and Its Derivatives         Benzotriazole (BTA) is a classic core raw material for copper protection. Its molecule contains a highly active triazole heterocyclic structure. Lone-pair electrons on nitrogen atoms can form stable Cu–N coordination bonds with ions on the copper surface, rapidly adsorbing and covering active sites of copper foil. Dense passivation films are formed through molecular polymerization to effectively suppress oxidation and electrochemical corrosion, while delivering good compatibility and film-forming stability.       However, neat BTA has obvious drawbacks: poor water solubility, narrow adaptable pH window for processes, weak high-temperature weather resistance and insufficient long-term protection capacity, making it hard to meet stringent aging test requirements for high-grade copper foil. For this reason, benzotriazole derivatives have been developed via molecular structure modification in the industry. They effectively improve the solubility, thermal stability and film compactness of the agent, reduce dosage and extend protection duration, and have become mainstream materials for post-electroplating treatment of high-grade copper foil.      Based on benzotriazole molecular modification technology, Wuhan Hugarise New Material Co., Ltd. has developed two different and innovative derivative products, precisely covering mass-production general scenarios and high-end high-weatherability protection scenarios, and addressing pain points of conventional agents including weak protection, poor high-temperature resistance and insufficient adhesion.   3.  Differentiated derivative products: Precisely covering two types of protection scenarios.   （1） Methylbenzotriazole Derivative (PCU‑T)         PCU-T is a modified water-soluble eco-friendly antioxidant. Optimized to solve poor water solubility and high dosage of conventional BTA, it fully dissolves in pure water without organic solvents, complies with RoHS and suits all aqueous passivation lines.      It delivers stronger coordination activity and forms uniform films rapidly, covering microscopic defects and active sites on copper foil to block corrosive media. Featuring excellent process compatibility within neutral and weakly alkaline systems, it serves post-electroplating anti-oxidation for general electronic copper foil, standard lithium battery copper foil and copper alloys. With low dosage of 0.1%–0.3%, it replaces BTA and methylbenzotriazole. Treated copper foil achieves good corrosion inhibition, ideal for large-scale continuous production.   （2）Benzotriazole Silane Oligomer (PCU‑B)         PCU‑B is a premium organosilicon-modified composite antioxidant. It innovatively combines benzotriazole corrosion-inhibiting moieties and silane crosslinking groups to form a dual-layer protection system: inner coordination passivation and outer silane barrier, tailored for ultra-high weather resistance.       Inner benzotriazole groups strongly coordinate with copper ions to form a stable anti-corrosion base layer and suppress electrochemical corrosion. Outer trimethoxysilyl groups hydrolyze and crosslink into a dense inorganic silane film, boosting compactness, thermal stability and salt-spray resistance. It overcomes poor heat resistance, peeling and aging defects of conventional organic films. Its silane network improves interlayer adhesion between copper foil and resin substrates to avoid delamination. Heavy-metal-free and low-volatile, it targets high-frequency high-speed PCB, ultra-thin flexible and high-end power battery copper foil for rigorous electronics manufacturing requirements.   4.  Specialized and differentiated anti-oxidation solutions for copper foil        Wuhan Hugarise New Material Co., Ltd. specializes in copper foil electroplating and post-treatment. Focused on key challenges of copper foil anti-oxidation, with solid expertise in formula development and process optimization, we have developed a line of additives for industrial mass production. We deliver tailored anti-oxidation solutions for various copper foils, working conditions and protection requirements, solving typical defects of electroplated copper foil such as discoloration, corrosion, poor weather resistance and insufficient adhesion.    

1.  Industry Pain Points and Core Application Value of H1 Additives In electrolytic copper‑foil production and copper‑plating processes, tensile strength serves as a core indicator governing copper‑foil quality and applications, directly determining its processing stability and service life in PCB manufacturing, lithium‑battery packaging and flexible circuits. Copper foils made by conventional processes often suffer coarse grains, loose structures and uneven stress, resulting in insufficient tensile properties as well as fractures, deformation and wrinkling during processing. The additives based on 2-Mercaptothiazoline (H1) features unique molecular structures and electrochemical modulation effects. It optimizes micro‑grain structures to comprehensively improve tensile strength while balancing surface brightness, leveling performance and deposition efficiency, making it a critical functional additive for high‑end copper‑foil manufacturing. 2.  Molecular Structural Advantages of H1 and Mechanisms for Copper Foil Performance Enhancement As the core parent material for enhancing the mechanical properties of electrolytic copper foil, H1 features a distinctive sulfur‑nitrogen heterocyclic molecular structure that delivers superior cathode‑adsorption and deposition‑modulation capabilities. During electroplating, H1 selectively adsorbs onto copper‑ion deposition sites to precisely regulate the reduction‑deposition rate of copper ions. It suppresses the disordered coarsening of copper grains and facilitates uniform, compact grain arrangement, thereby substantially mitigating grain‑boundary defects and dislocation imperfections within the copper‑foil crystal matrix. Such well‑ordered and dense microcrystalline structure remarkably improves the tensile and deformation‑resistant performance, fundamentally elevating the tensile strength of copper foil and addressing the inherent drawbacks of conventional copper foil including poor ductility and high fracture susceptibility. H1 exhibits outstanding brightening and leveling functions. It rapidly fills micro‑pits on copper‑foil surfaces to reduce surface roughness and achieve mirror‑grade brightness. Its fast brightening response also optimizes production efficiency, making it well‑suited for high‑speed continuous copper‑foil manufacturing lines. 3.  Synergistic Enhancement Mechanism of H1 Derivative Additive System Based on H1’s superior parent molecular skeleton, a series of high-performance customized additives have been developed to broaden the process applicability of high-tensile copper foil and achieve targeted performance optimization. Four derivatives, including Sodium Thiazolinyl Dithiopropane Sulfonate (SH110), Sodium Benzimidazolyl Dithiopropanesulfonate (SM110), Sodium Ethylene Thiourea Dithiopropanesulfonate (SN110) and Sodium 2-mercaptothiazoline Propanesulfonate (HPS), retain H1’s core strength of enhancing copper foil tensile properties. Optimized molecular structures enable their compatibility with various plating bath systems and parameters. These synergistic derivatives refine grains, balance deposition stress and improve copper foil structural compactness, delivering high tensile strength and excellent flexibility to meet production demands for ultra-thin and ultra-soft high-end copper foil. Sodium Dimethylformamido Propanesulfonate (TPS) serves as a vital auxiliary additive that establishes an efficient synergistic system with H1 and its four derivatives. It optimizes the electrochemical behaviors of plating baths, enhances copper deposition uniformity, and eliminates local stress concentration. By compensating for the inherent limitations of individual additives, TPS stabilizes the microscopic structure of copper foil and sustains stable tensile strength. Furthermore, this compound additive system exhibits excellent compatibility with conventional acidic copper plating solutions and superior process stability, enabling simultaneous improvement in the mechanical performance and surface quality of copper foil without extensive production parameter modifications. 4.  Enterprise Technical System and Industrial Application Advantages   Wuhan Hugarise New Material Co., Ltd. specializes in the R&D and production of electroplating functional intermediates. It has developed an H1-centered additive system that forms a complete performance enhancement path of grain refinement, stress balancing and structural strengthening. This system greatly boosts copper foil tensile strength while delivering fast brightening, excellent leveling and high flatness. Adaptable to standard PCB, ultra-thin lithium battery and flexible circuit copper foil, it reduces processing loss and improves product qualification rate, providing core technical support for high-quality and efficient industrial production of high-end copper foil. Wuhan Hugarise New Material Co., Ltd. Email: info@hugarise.com Tel: +86 027 85838885 Mobile: +86 153 9154 7019  +86 132 9661 3823 Add: Room 811, Building E, Wuhan Living Room Exhibition Center, Dongxihu District, Wuhan, Hubei, China

01. Core Value: Acid Copper Plating & Electroplating Intermediates Acid copper plating is a vital process for hardware electroplating, PCBs and lithium battery copper foil manufacturing. The quality of electroplating intermediates directly determines the brightness, leveling, mechanical properties and production stability of copper deposits, making them key materials to guarantee finished quality. DPS and UPS are widely used brighteners applicable to various acid copper plating systems. Our self-developed NEOS (aliphatic polyoxyethylene ether sulfonate) and ZLES (polyethyleneimine sulfonate) outperform traditional products, offering superior brightening effect for high-end scenarios such as lithium battery copper foil and precision electroforming. 02. Established Mainstream System: Performance & Industrial Application of DPS and UPS As proven brightening intermediates for acid copper plating, DPS and UPS feature great compatibility and stable performance, widely adopted in acid copper plating and lithium battery copper foil production. DPS delivers bright deposits with refined grains; blended with SPS, it achieves mirror brightness and high ductility to avoid cracking and peeling. UPS builds a uniform bright coating foundation. Combined with SPS in copper foil manufacturing, it optimizes internal structure and boosts tensile strength for lithium battery applications. 03. Innovative product: NEOS Solves Traditional Problems for High-end Copper Foil Production   We have developed two novel additives, NEOS and ZLES, overcoming drawbacks of conventional protein peptide materials and upgrading copper plating performance. Synthesized via bionic technology to mimic peptide molecular structures, NEOS duplicates their excellent electrochemical properties while eliminating poor oxidation resistance, inferior stability and short shelf life. It enhances coating brightness, widens operating window and improves tensile strength of lithium copper foil. Chemically stable during bath preparation and continuous production, NEOS serves as a direct substitute for traditional peptides. Its strong cathodic adsorption delivers uniform, compact deposits, lowers Rz value and enables ultra-flat, low-profile high-end copper foil. 04. Quality Enhancement Across All Scenarios: ZLES Addresses Weaknesses in High-Current Zones, Synergistic Efficiency from Dual-Product Collaboration   Our self-developed ZLES targets uneven, hazy and rough deposits in high current density zones, greatly improving levelling and brightness in acid copper plating. Versatile for decorative and functional plating, it suits hardware finishing, precision copper electroforming, PCB and premium lithium battery copper foil. Combined with NEOS, the two additives complement each other to optimize coating appearance, flatness and mechanical properties. They also boost bath stability and production tolerance, supporting large-scale copper plating with superior quality, higher efficiency and lower costs. 05. Corporate Strength: Pursuing Innovation to Fuel Industrial Upgrade Wuhan Hugarise New Material Co., Ltd. specializes in R&D, production and sales of high-end acid copper plating intermediates and functional electroplating additives. Our self-developed NEOS and ZLES outperform conventional intermediates and peptide materials with superior stability, improved coating quality, wider process compatibility and lower overall costs. Having moved beyond lab trials, they are mass-produced and stably deployed at multiple lithium copper foil and precision electroplating manufacturers with verified reliability and compatibility. We will keep advancing electroplating new materials to support high-quality, efficient and eco-friendly production for the industry.

1. Core Functions of Electroplating Intermediates in Acid Copper Plating & High-Grade Copper Foil Process   Electroplating intermediates act as core functional additives in acid copper and high-end copper foil plating to adjust coating microstructures and improve quality. SPS (CAS 27206-35-5) and MPS (CAS 17636-10-1), two stable grain refiners, deliver excellent polarization control to optimize copper deposition, yielding bright, compact continuous copper layers. Indispensable for advanced copper plating, they suit acid copper, lithium battery and precision copper foil production lines.     2. Grain refinement is the core functional advantage of SPS and MPS.   Grain refinement is SPS & MPS’s core merit. Ordinary acid copper plating generates rough, loose coatings with disordered coarse grains, weakening conductivity, corrosion resistance and mechanical performance. Added to plating solutions, they boost cathodic polarization to regulate copper deposition, restrain large crystal formation and arrange copper atoms evenly. Microscopically, they miniaturize grains and compact deposits for flawless smooth copper films, solving classic plating defects fundamentally.   3. SPS is a high-efficiency electroplating intermediate   As a classic high-efficiency acid copper intermediate, SPS boasts wide compatibility. For hardware plating, it forms glossy, anti-oxidation copper layers. For PCB & copper electroforming, it produces dense, conductive deposits for precision electronics. In lithium battery copper foil production, its grain refinement boosts surface finish, tensile strength and ductility, enabling stable mass manufacturing of ultra-thin foil with consistent battery conductivity and longer service life.   4. MPS delivers complementary core functions to SPS.     MPS shares the same grain-refining function as SPS and works synergistically with it, compatible with all acid copper plating conditions. Featuring great stability at high temperature and high current density, it avoids burnt, uneven coatings and offers strong throwing power for complex parts & high-speed copper foil lines. Usable alone or blended with SPS to elevate plating effects, it ensures steady quality for copper foil and functional copper plating.   5. Industry Development Trends   Booming new energy and precision electronics raise stricter standards for copper coating precision, gloss and stability. With reliable grain refining and broad process compatibility, SPS and MPS are essential additives for acid copper plating and lithium battery high-precision copper foil. They enable high-precision, mass high-quality copper plating, supporting hardware, electronics and new energy industrial upgrading. Wuhan Hugarise New Material Co.,Ltd. focuses on R&D and production of electroplating intermediates. Our core grain refiners SPS and MPS fit acid copper plating and high-end copper foil manufacturing perfectly, featuring high purity, good water solubility and stable chemical properties. They refine copper grains to form bright, intact copper layers for hardware decoration, electroforming, PCB and lithium battery copper foil, greatly boosting foil surface finish and quality. MPS works well alone or mixed with SPS, DPS and other additives. With mature production lines and strict QC, our products balance stability and compatibility to meet mass-production demands of precision electronics and new energy industries, providing cost-effective high-performance intermediates for electroplating factories.

  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.