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Description and features

The use of Silqon Glymo (3-glycidoxypropyltrimethoxysilane) as a coupling agent in mineral-filled plastics improves filler dispensability, reduces its sedimentation tendency and greatly lowers the resin’s viscosity. In addition it leads to higher filler loading and a marked increase in water (vapor) resistance as well as resistance to acids and bases. As a component of adhesives and sealants. Silqon A187 improves both adhesion to the substrate and mechanical properties such as flexural strength, tensile strength and modulus of elasticity.


Europe: SilQon Glymo is ➔ on stock in our local warehouse. Our lead time is about one week if delivered in 190 Kg steel drums.

United States, Canada, South America, South Africa and other markets can also be served, please contact our sales department for more details.

This product (CAS:2530-83-8) has been registered under REACH (EC) 1907/2006.

Product Identification

CAS number 2530-83-8
EC number 219-784-2
HS code 2931 90 00
EC name [3-(2,3-epoxypropoxy)propyl]trimethoxysilane
IUPAC name trimethoxy[3-(oxiran-2-ylmethoxy)propyl]silane


AppearanceColorless transparent liquid
Assay≥ 98.00 %
Colour (Pt-Co) ≤30
Refractive Index 1.4265-1.4275


Glass fiber or glass fabric composites:As a finish or a size ingredient
Foundry resins: As an additive to polyurethane resin
Paints and coatings: As an additive and primer for improving adhesion to the substrate, especially glass and metal.


Available packaging: 190 KG steel drums.
Special packaging is available on request.


Store 3-Glycidoxypropyltrimethoxysilane in a cool, dry and well-ventilated area and in line with legal requirements.
Keep Silqon Glymo away from heat sources and oxidizing agents.


A Material Safety Data Sheets (MSDS) is available for SilQon Glymo and all other products supplied by Vesta Chemicals BV.

An MSDS describes the hazards of a product and explains how a product can be safely handled, used and stored. Besides it provides important regulatory and emergency response information for the purchased product.

Molecular and structural information

Molecular formula C9H20O5Si
Molecular weight 236.34 g/mol
Smiles notation CO[Si](CCCOCC1CO1)(OC)OC
Structural formula 2530-83-8 | 3-glycidoxypropyltrimethoxysilane

Physicochemical information

Boiling point 262 ºC @ 1013 hPa
Bulk density 1.07 g/cm3 (20 ºC)
Flash point 110 ºC @ 101.3 kPa
Melting point< -70 ºC
Log Pow -2.60 @ 25 ºC
Solubility in water 36.52 g/l (20 ºC / pH 7)
Vapor pressure (MGM)0.003 hPa (20 ºC)

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