GLYCIDOXYPROPYL TRIMETHOXYSILANE- ▸ Adhesion promoter: Crosslinking additive in adhesives, sealants, coatings, and composites.
- ▸ Glass-fiber sizing: Reinforces glass fibers and foundry resins.
- ▸ Coupling agent: Bonds silica and mineral fillers into polymer matrices.
- ▸ Surface modifier: Functionalizes inorganic surfaces for resin compatibility.
A grade-specific Safety Data Sheet (SDS) — with the complete hazard classification, handling precautions, and transport information — is supplied with every shipment and available on request. Confirm all safety and regulatory details against the SDS for your specific grade.
Request SDS →3-Glycidoxypropyltrimethoxysilane (CAS 2530-83-8) is an epoxy-functional organosilane used as an adhesion promoter and crosslinking agent in adhesives, sealants, coatings, and composites. It reinforces glass fibers and foundry resins and promotes resin bonding to glass, silica, and metal substrates. The epoxide reacts with organic resins while the trimethoxysilyl group hydrolyzes to bond inorganic surfaces.
Frequently Asked Questions
What is 3-glycidoxypropyltrimethoxysilane (GPTMS) used for?
GPTMS is an epoxy-functional organosilane used as an adhesion promoter and crosslinking agent in adhesives, sealants, coatings, and composites. It reinforces glass fibers and foundry resins and promotes resin bonding to glass, silica, and metal substrates. The epoxide reacts with organic resins while the trimethoxysilyl group hydrolyzes to bond inorganic surfaces.
What is gamma-glycidoxypropyltrimethoxysilane, and is it the same product?
Yes. "Gamma-glycidoxypropyltrimethoxysilane," the glycidyl-ether oxypropyl trimethoxysilane, GLYMO, and GPTMS are all common names for CAS 2530-83-8. "Gamma" simply denotes the propyl-chain attachment position.
What is 3-(trimethoxysilyl)propyl glycidyl ether?
That is another systematic name for the same molecule — GPTMS, CAS 2530-83-8 — naming it as the glycidyl ether bearing a trimethoxysilylpropyl group. It is identical to the product listed here.
What is the CAS number and formula of GPTMS?
3-Glycidoxypropyltrimethoxysilane has CAS number 2530-83-8 and molecular formula C9H20O5Si, in the Silanes & Organosilanes family.
What is the cost of bulk GPTMS and how is it packaged?
RawSource quotes GPTMS per order because pricing tracks volume, packaging, and raw-material markets rather than a fixed list price. It ships in drums, totes, and IBCs with CoA and SDS per lot; submit a bulk RFQ for a current quote and lead time.