- ▸ Coupling agent: Bonds glass fiber and mineral fillers to organic polymer matrices.
- ▸ Adhesion promoter: Improves resin adhesion in adhesives, sealants, and coatings.
- ▸ Crosslinker: Epoxy functionality reacts with amine- and hydroxyl-cure resins.
- ▸ Composites: Surface treatment for reinforcing fillers and foundry/glass resins.
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-Glycidoxypropyltriethoxysilane (CAS 2602-34-8) is an epoxy-functional organosilane coupling agent, the triethoxy analogue of GPTMS. Silanes of this class bond inorganic substrates such as glass fiber, mineral fillers, and metals to organic resins, serving as adhesion promoters and crosslinkers in adhesives, sealants, coatings, and composites. The epoxide reacts with amine- and hydroxyl-functional resins while the alkoxysilane hydrolyzes to anchor to inorganic surfaces.
Frequently Asked Questions
What is 3-glycidoxypropyltriethoxysilane used for?
It is an epoxy-functional organosilane coupling agent, the triethoxy analogue of GPTMS. It bonds inorganic substrates such as glass fiber, mineral fillers, and metals to organic resins, serving as an adhesion promoter and crosslinker in adhesives, sealants, coatings, and composites. The epoxide reacts with amine- and hydroxyl-cure resins while the alkoxysilane hydrolyzes to anchor the inorganic surface.
What is 3-glycidyloxypropyl trimethoxysilane, and how does it relate?
3-Glycidyloxypropyltrimethoxysilane (GPTMS, CAS 2530-83-8) is the trimethoxy analogue of this product. Both are epoxy-functional coupling agents; the trimethoxy version hydrolyzes faster and releases methanol, while this triethoxy version releases ethanol. RawSource supplies both grades.
What is the CAS number and formula of 3-glycidoxypropyltriethoxysilane?
It has CAS number 2602-34-8 and molecular formula C12H26O5Si, in the Silanes & Organosilanes family.
Where can I review handling and hazard information for this silane?
Handling, hazard classification, and GHS data are provided in the product Safety Data Sheet, which RawSource supplies with every order. Consult the current SDS for storage, PPE, and handling guidance before use.
What bulk packaging does RawSource offer for this silane?
RawSource distributes it in industrial volumes — drums, totes, and IBCs — to manufacturers, with CoA and SDS per lot. Send a bulk RFQ with your target volume for current pricing and lead time.