Grade: CG-1812
Octadecyltrimethoxysilane
CG-1812 (Octadecyltrimethoxysilane) is a long-chain alkyl silane coupling agent providing hydrophobicity and temperature resistance, primarily used in resins, waterproofing, and filler treatment.
- CAS No.: 3069-42-9
- EC No.: 221-339-2
- Molecular Formula: C21H46O3Si
- Structural Formula

- Synonyms: Trimethoxy(octadecyl)silane
- Appearance: colorless to pale yellow, transparent liquid
- Purity: ≥95%
- Density (20 °C): 0.800-1.000 g/cm3
Packaging and Storage
This product can be packaged in 25 kg plastic drums, 200 kg plastic drums, or steel drums. Other package sizes are available upon request. Store in a cool, well-ventilated, dry place in tightly sealed containers, protected from light
Application
CG-1812 is a long-chain alkyl silane coupling agent providing hydrophobicity and temperature resistance, used in resins, waterproofing, and filler treatment. CG-1812 modifies the surface of precipitated silica to reduce viscosity and improves the processi
CG-1812 modifies the surface of glass, quartz sand, metals, and powder fillers to impart hydrophobic properties.
CG-1812 improves the compatibility between fillers and resins.
