Highly reactive acetoxysilane functionality enables rapid room-temperature condensation with hydroxyl-bearing surfaces.
Propyl backbone provides excellent hydrophobicity and compatibility with organic polymers including silicones, acrylics, and polyurethanes.
Low volatility and favorable handling characteristics compared to chlorosilane alternatives.
Effective moisture scavenger in sealant and adhesive formulations, reducing bubble formation during cure.
Enhances interfacial adhesion between inorganic substrates (e.g., glass, metal oxides) and organic matrices.
One-component moisture-curing silicone sealants and RTV adhesives.
Primerless bonding systems for automotive glass and aluminum assemblies.
Filler surface treatment in high-performance rubber and thermoplastic composites.
Adhesion promoters in architectural glazing and structural silicone sealants.
Moisture-cured polyurethane coatings and caulks requiring improved substrate wetting.
| Chemical Type | Organofunctional silane coupling agent (acetoxysilane) |
| Chemical Name | Propyltriacetoxysilane |
| Molecular Formula | C9H18O6Si |
| Product Form | Liquid |
| Appearance | Clear, colorless to pale yellow liquid |
| Odor | Mild acetic acid odor |
| Density (25°C) | 1.07–1.09 g/cm³ |
| Flash Point (Tag Closed Cup) | ≥ 65°C |
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