Silane Coupling Agent A-1100 (γ-Aminopropyltriethoxysilane, APTES)
CAS Number: 919-30-2
Silane Coupling Agent A-1100 (KH-550, APTES) is an amino-functional silane widely used to improve adhesion between epoxy, polyurethane, and phenolic resins and inorganic substrates. The primary amine group reacts directly with epoxy resins as a co-curing agent while the triethoxysilyl group bonds to glass, silica, and metal oxide surfaces. A-1100 is a standard treatment for glass fiber sizing, mineral filler surface modification, and metal primer applications.
Technical Specifications
| purity | ≥97% |
| density | 0.94 g/cm³ |
| appearance | Colorless to pale yellow liquid |
| boilingPoint | 217 °C |
| aminoHydrogenEquivalent | 102 g/eq |
Applications
- Glass fiber sizing treatment
- Mineral filler surface modification
- Metal primer and adhesion promoter
- Epoxy and polyurethane adhesive systems
- Silica surface functionalization for composites
Key Features
- Primary amine reacts with epoxy as co-curing agent
- Strong bonding to glass, silica, and metal oxides
- Improves wet strength retention in composites
- Versatile across multiple resin systems
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CAS Number
919-30-2
Category
Adhesive / Sealant AdditivesAvailability
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