Abstract
2-(3, 4-Epoxycyclohexyl)ethyl]trimethoxysilane (CAS No. 3388-04-3), silane coupling agent KH-566, is a versatile epoxy functional organosilane possessing a reactive organic epoxide and hydrolyzable inorganic methoxysilyl groups. The dual nature of its reactivity allows KH-566 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.
KH-566 is a colorless low-viscosity liquid with a slight terpentine-like odor. It is soluble in alcohols, ketones and aliphatic or aromatic hydrocarbons.

Identification
Name: 2-(3, 4-Epoxycyclohexyl)ethyl]trimethoxysilane
Synonyms  : Trimethoxy[2-(7-oxabicyclo[4.1.0]hept-3-yl)ethyl]silane
Molecular Formula: C11H22O4Si
Molecular Weight: 246.38
CAS Registry Number: 3388-04-3
EINECS: 222-217-1

Equivalents
Momentive (formerly OSi Specialties ) Silquest A-186  
Dow Corning Z-6043  
ShinEtsu KBM-303  
Chisso Sila-Ace S530
UCT Specialties (formerly Petrarch) E6250

Properties
Density: 1.06
Boiling point: 310 C degree
Refractive index: 1.448
Flash point: 163 C degree
Water solubility: REACTS

Application
2-(3, 4-Epoxycyclohexyl)ethyl]trimethoxysilane (CAS No. 3388-04-3), silane coupling agent KH-566, is an 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
Sealants and adhesives: 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
Improved shelf life over aminosilanes in polyurethanes
Important product effects that can be achieved through the use of KH-566 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.