Dow Corning OFS-6403 (isobutyltriethoxysilane) is a hydrophobic silane coupling agent that enhances adhesion and waterproofing in coatings and composites. Its small molecular structure enables deep penetration into concrete and metals, forming durable siloxane crosslinks for >90% wet adhesion retention. Ideal for high-transparency concrete and anti-corrosion coatings, it complies with REACH/RoHS and reduces VOC emissions (423 g/L). Applications include waterproof coatings, FRP composites, and cable insulation
Deep Substrate Penetration - Small molecule design ensures thorough infiltration for long-lasting hydrophobicity
Interfacial Bonding - Ethoxy groups react with inorganic surfaces; alkyl chains enhance polymer compatibility
Process Efficiency - Low viscosity (0.880 g/cm³) facilitates uniform dispersion in formulations
Multi-Substrate Versatility - Effective on concrete, metals, and polyolefins
FRP Composites - Glass fiber sizing for automotive parts (30–50% strength increase)
Wire Insulation - Crosslinked polyethylene cables with improved dielectric properties
Industrial Coatings - Metal primers with enhanced corrosion resistance
Adhesives - Acrylic formulations with 0-level adhesion (ASTM D3359)
Chemical Name | Isobutyltriethoxysilane |
Appearance | Transparent |
Density (25℃) | 0.88 g/cm³ |
Flash Point (Closed Cup) | 62℃ |
Molecular Weight | 220 g/mol |
Purity | 98% |
Shelf Life | 720 days |
VOC Content | 423 g/L |
Packaging | 20KG/drum |
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