3-Glycidoxypropyltrimethoxysilane (GLYMO)

3-Glycidoxypropyltrimethoxysilane is an epoxy-functional organosilane coupling agent that provides excellent bonding between organic polymers and inorganic substrates. It contains a reactive glycidoxy group and hydrolyzable trimethoxy groups, enabling durable covalent linkages that improve adhesion, mechanical strength, and moisture resistance.

GLYMO is widely used as an adhesion promoter, crosslinker, and surface modifier in coatings, adhesives, sealants, composites, and electronic materials. It enhances interfacial compatibility and long-term durability in hybrid organic–inorganic systems.

Key Features:

• Provides strong adhesion to glass, metal, mineral, and ceramic surfaces

• Enhances moisture, chemical, and weather resistance

• Promotes coupling between epoxy, polyurethane, and polyester resins

• Improves mechanical strength and long-term durability

Applications:

• Adhesives, sealants, and coatings

• Fiber-reinforced plastics and composites

• Glass fiber sizing and surface treatments

• Electronic encapsulants and hybrid polymer systems

CAS # 2530-83-8