Mercapto functional silane coupling agent. Difunctional grade — methyl plus two methoxy groups — giving lower crosslink density than the trifunctional mercapto silanes. The thiol group reacts in sulfur-cure and polyurethane systems, bonding rubber and sealant compounds to mineral fillers and glass.
Product Code
S121
3-Mercaptopropylmethyldimethoxysilane
CAS Number
31001-77-1
Description
Synonyms
Cross-Reference
Comparable products from other manufacturers, for identification purposes only.
Key applications
- Coupling agent for silica-reinforced rubber compounds
- Adhesion promotion in polysulfide and polyurethane sealants
- Mineral filler and glass surface treatment
Characteristics
| Family | Mercapto Silanes |
|---|---|
| Functionality | Mercapto |
| Molecular formula | C6H16O2SSi |
| Molecular weight | 180.34 g/mol |