3-Aminopropyltriethoxysilane
CAS: 919-30-2KH-550 is a versatile amino-functional silane coupling agent widely used as an adhesion promoter between organic polymers and inorganic substrates. It enhances bonding in fiberglass-reinforced plastics, coatings, adhesives, and sealants. With its high purity (≥99%) and excellent stability, KH-550 is the preferred choice for thermoplastic and thermosetting resin applications.
| Chemical Name | 3-Aminopropyltriethoxysilane |
|---|---|
| CAS Number | 919-30-2 |
| Molecular Formula | C₉H₂₃NO₃Si |
| Molecular Weight | 221.37 g/mol |
| Appearance | Colorless to pale yellow transparent liquid |
| Purity | ≥99% |
| Density (25°C) | 0.940-0.950 g/cm³ |
| Refractive Index (25°C) | 1.420-1.425 |
| Boiling Point | 217°C |
| Flash Point | 96°C |
| Packing | 200kg drums, IBC tanks, or as requested |
Enhances adhesion between fiberglass and resin matrices in FRP composites, improving mechanical strength and durability.
Improves adhesion and corrosion resistance in industrial coatings, primers, and paint systems.
Boosts bonding strength in epoxy, polyurethane, and acrylic adhesive formulations.
Surface treatment for concrete, stone, and ceramic tiles to improve water resistance and durability.
Encapsulation and potting compounds for electronic components, providing moisture protection.
Tire manufacturing and rubber compounding for improved filler-rubber interaction.
Technical Guide
From cable crosslinking to thermoset composites — learn how KH-550 works, typical dosage, and application methods with real-world examples.
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