Chenguang KH-590 (γ-mercaptopropyltrimethoxysilane) is a dual-functional coupling agent that enhances interfacial bonding between polymers (rubber, epoxy) and inorganic substrates (glass fibers, metals). Its reactive thiol and methoxy groups improve wet adhesion (>90% retention), mechanical strength, and chemical resistance in composites. Ideal for tires, cables, and coatings, it enables fast curing at ambient temperatures and complies with REACH/RoHS, reducing VOC emissions by 15–20%
Dual Reactivity - Thiol groups bond with sulfur-cured rubbers; methoxy links to fillers/fibers, optimizing stress transfer
Process Efficiency - Lowers viscosity (1.050–1.060 g/cm³) for homogeneous filler dispersion
Durability - Enhances UV/aging resistance in coatings (salt spray resistance >1,000 hours)
Multi-Matrix Compatibility - Works with NR, EPDM, SBR, and polyurethan
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 | γ-Mercaptopropyltrimethoxysilane |
Appearance | Colorless to light yellow transparent liquid |
Molecular Weight | 196.34 g/mol |
Specific Gravity (25℃) | 1.0350-1.0550 |
Boiling Point | 212℃ |
Flash Point (Closed Cup) | 104.4℃ |
Active Content | ≥98.0% |
Viscosity (25℃) | 3.0 cSt |
Packaging | 20KG/drum |
Origin | China |
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