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Methyl triethoxysilane-Silicone rubber crosslinking agent


Methyl triethoxysilane is obtained by reacting methyl trichlorosilane with ethanol in a solvent. Insoluble in water, soluble in ethanol, acetone, ether, etc.CAS: 2031-67-6 Molecular formula: C7H18O3Si

Physical and chemical constants

Appearance and properties: colorless, transparent, sweet liquid

Melting point (℃) -46.5
Relative density (water=1) 0.89(20℃)
Stability stable


As RTV one-component silicone rubber crosslinking agent, it is also the raw material for preparing silicone resin, and it can also process various inorganic fillers. It can also be used as a cross-linking agent for silicone rubber, modified synthetic resins, as a fire retardant, as a primer for plastic hard coatings, and as a water-repellent agent.

Emergency Treatment

Evacuate personnel from the contaminated area to a safe area, prohibit irrelevant personnel from entering the contaminated area, and cut off the source of fire. Emergency personnel should wear gas masks and general fire protection clothing. Stop leaks while ensuring safety. Absorb it with sand, vermiculite or other inert materials, and then transport it to the waste disposal site. It can also be scrubbed with an emulsion made of combustible dispersant, and the diluted lotion is put into the waste water system. If there is a large amount of leakage, use the embankment to contain it, and then collect, transfer, recycle or dispose of it after harmless treatment.

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