Abstract
3-Aminopropyltriethoxysilane (CAS No. 919-30-2), Silane coupling agent KH-550, is a versatile amino functional coupling agents used over a broad range of applications to provide superior bonds between inorganic substrates and organic polymers. The primary amine function reacts with a wide array of thermoset, thermoplastic and elastomeric materials.

Identification
Name: 3-Aminopropyltriethoxysilane
Synonyms: 3-Triethoxysilylpropylamine
Molecular Formula: C9H23NO3Si
Molecular Weight: 221.37
CAS Registry Number: 919-30-2
EINECS: 213-048-4

Equivalents
Momentive (formerly OSi Specialties ) Silquest A-1100  
Dow Corning Z-6011  
ShinEtsu KBE-903  
EVONIK Degussa Dynasylan AMEO  
Wacker GENIOSIL GF 93
Chisso Sila-Ace S330
UCT (formerly Petrarch) A0750

Properties
Density: 0.946
Melting point: -70o C
Boiling point: 217o C
Refractive index: 1.420-1.422
Flash point: 96o C
Water solubility: REACTS

Application
3-Aminopropyltriethoxysilane (CAS No. 919-30-2), Silane coupling agent KH-550, is an important additive for many applications. Examples are:
Glass fiber/glass fabric composites: As a finish or size constituent
Mineral fiber insulating materials and abrasives: As an additive to phenolic resin binders
Foundry resins: As an additive to phenolic, furan and melamine resins
Sealants and adhesives: As a primer or additive and for chemical modification
Mineral-filled polymers (composites) or HFFR cables: For pretreatment of fillers and pigments
Paints and coatings: As an additive and primer for improving adhesion to the substrate.
As a primer for glass and metal