GP-37 Methyltriethoxysilane

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GP-37 is an intermediate useful in the synthesis of silicone resins, silicone rubber and sol-gel coatings. GP-37 is also used for preparing hydrophobic and release materials.

Typical Properties
Clear, Colorless Liquid
Molecular Weight (Calculated)
178.3 amu
Boiling Point
288°F (142°C)
Flash Point (P.M.C.C.)
86°F (30°C)
Specific Gravity
Weight/Gallon @ 25°C
7.5 lbs

Processing and Safety Guidelines

GP-37 should be handled with care. Use proper precautions for handling Flammable Materials. Consult Safety Data Sheet for additional details.


GP-37 is supplied in 5-gallon (35 lbs.) pails and 55-gallon (396 lbs.) drums. GP-37 is Flammable. Keep away from open flames or welding torches, even when empty. Moisture Sensitive - maintain under nitrogen.