Evonik

Dynasylan GLYEO

3-Glycidyloxypropyltriethoxysilane

Dynasylan GLYEO is a bifunctional organosilane possessing a reactive organic epoxide and a hydrolyzable inorganic triethoxysilyl group.

The dual nature of its reactivity allows Dynasylan GLYEO to bind chemically to both inorganic materials (e.g. glass, metals, fillers) and organic polymers (e.g. thermosets, thermoplastics, elastomers), thus functioning as an adhesion promoter, crosslinking agent and/or surface modifier. Dynasylan GLYEO is a colorless low-viscosity liquid with a slight terpentine-like odor. It is soluble in alcohols, ketones and aliphatic and aromatic hydrocarbons.

Key Features

Important product effects that can be achieved through the use of Dynasylan GLYEO include:

  • Improved mechanical properties, such as flexural strength, tensile strength, impact strength and modulus of elasticity
  • Improved moisture and corrosion resistance
  • Improved electrical properties, for example dielectric constant, volume resistivity

Dynasylan GLYEO can also improve such processing properties as

  • Better filler dispersion
  • Rheological behavior (i.e. viscosity reduction) Newtonian behavior
  • Increased filler loading

Recommended Applications

Dynasylan GLYEO is an important or even essential ingredient in the products of many industries. Examples are:

  • Glass fiber/glass fabric composites: as a finish or a size ingredient
  • Foundry resins: as an additive to polyurethane resins
  • Adhesives and sealants: as a primer or additive
  • Mineral filled composites: for pretreatment of fillers and pigments or as an additive to the polymer
  • Paints and coatings: as an additive and as a primer for improving adhesion to the substrate, especially glass and metal