Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

Dow Corning OFS-6778 Methyl Silicate Coupling Agent

Dow Corning OFS-6778 is a methyl siliconate-based coupling agent that enhances adhesion and reduces viscosity in waterproof/anti-corrosion coatings. Its reactive siloxane bonds form hydrophobic layers, improving wet adhesion (>90% retention) and mechanical strength in composites. Ideal for concrete/metal substrates, it complies with REACH/RoHS and offers low VOC (<50 g/L), making it suitable for commercial buildings, bridges, and industrial coatings

Features Of Dow Corning OFS-6778 Methyl Silicate Coupling Agent

  1. Deep Penetration - Small molecular structure ensures thorough substrate infiltration for durable waterproofing

  2. Interfacial Bonding - Siloxane crosslinks bridge organic resins (epoxy, acrylic) and inorganic substrates (concrete, metals)

  3. Process Efficiency - Lowers viscosity (40% aqueous solution, dilutable to 3%) for easy application

  4. Multi-Substrate Compatibility - Effective on concrete, metals, and polyolefins

Typical Applications Of Dow Corning OFS-6778 Methyl Silicate Coupling Agent

  1. Infrastructure Protection - Waterproofing for bridges/highways with >1,000-hour salt spray resistance

  2. Metal Anti-Corrosion - Aluminum/steel coatings with extended service life

  3. Polymer Composites - Mineral filler modification for improved dispersibility in polyolefin

Specifications Of Dow Corning OFS-6778 Methyl Silicate Coupling Agent

Chemical Name
Silane Coupling Agent
Appearance
Transparent
Specific Gravity (25℃)
1.29
Flash Point (Closed Cup)
>93.8℃
Total Solid Content
40-45%
pH Value
13
Solvent
Water
Packaging
20KG/drum


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