High-purity domestic alternative to imported gamma-mercaptopropyltrimethoxysilane, ensuring consistent coupling performance.
Reactive thiol (–SH) group enables strong covalent bonding with metals, sulfur-cured elastomers, and inorganic fillers.
Three hydrolyzable methoxy (–OCH₃) groups provide excellent crosslinking density and rapid silanol formation under mild moisture conditions.
Enhanced shelf stability compared to ethoxy analogues, with reduced volatility and improved handling safety.
Optimized for ambient-temperature silanization processes—no catalyst or elevated temperature required for effective surface modification.
Silane coupling agent for silica- and carbon black-filled rubber compounds, especially in high-performance tires and industrial hoses.
Surface modifier for metal oxides (e.g., ZnO, Fe₃O₄) in conductive composites and electromagnetic shielding materials.
Adhesion promoter in epoxy, polyurethane, and silicone sealants used for metal-to-polymer bonding in automotive assemblies.
Functionalization reagent for gold nanoparticles and quantum dots in biosensor and diagnostic assay development.
| Chemical Type | Organofunctional alkoxysilane |
| Chemical Name | 3-Mercaptopropyltrimethoxysilane |
| Product Form | Clear, colorless to pale yellow liquid |
| Appearance | Homogeneous liquid, free from visible particulates or phase separation |
| Specific Gravity (25°C) | 1.045–1.065 g/cm³ |
| Refractive Index (20°C) | 1.422–1.430 |
| Thiol Content (as –SH) | 7.8–8.2 wt% |
| Storage Condition | Sealed container, under nitrogen, at 2–25°C, protected from moisture and direct sunlight |
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