Chemical Name: 3-Mercaptopropyltrimethoxysilane

Chemical Name


Structural Formula


Physical Indicators

CAS NO: 4420-74-0 Product appearance: colorless transparent liquid Solubility: Soluble in most organic solvents, hydrolyzed in water Boiling point: 215 ℃ Density (20 ℃): 1.056 g/mL Flash point (closed cup): 88 ℃ Refractive index (nD25): 1.437-1.4470


1. It contains thiol functional groups and has special effects as a metal surface rust inhibitor. When used to treat metal surfaces such as gold, silver, and copper, it can improve its corrosion resistance, oxidation resistance, and enhance its adhesion performance to polymer materials. 2. Widely used in filling polymer materials, it can be applied to thermosetting and thermoplastic polymer materials, such as epoxy, nitrile, phenolic sulfone, polyvinyl chloride, polystyrene, polyimide, etc. 3. Especially effective in the rubber industry, it can improve its mechanical properties, improve wear resistance, and reduce permanent deformation. It is suitable for NR, EPDM, SBR, polysulfide rubber, styrene butadiene rubber, nitrile rubber, chloroprene rubber, and polyurethane rubber.


5kg/pot, 10kg/pot, 25 kg/barrel, 200kg/barrel, 1000kg/IBC, etc

Storage Conditions

Cool, ventilated, and dry


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