Product Code：SP8026
Product Name：3-MERCAPTOPROPYLMETHYLDIMETHOXYSILANE
Product Introduction：
3-Mercaptopropylmethyldimethoxysilane is a sulfur-containing silane with a reactive thiol group and two hydrolyzable methoxy groups. It acts as a coupling agent and crosslinker, bonding organic polymers to inorganic surfaces. The thiol functionality enables radical or addition reactions, while the methoxy groups condense with hydroxylated substrates. Used in sealants, adhesives, and rubber modifiers for improved adhesion and mechanical properties.
Basic Information
- Chinese name：3-巯丙基甲基二甲氧基硅烷
- CAS number：[31001-77-1]
- Molecular formula：C₆H₁₆O₂SSi
Physical properties
- Appearance：Colorless to yellowish transparent liquid
Technical indicators
| Project |
Indicator |
| Appearance |
Colorless to yellowish transparent liquid |
| Color, Pt-Co |
≤20 |
| Purity,% |
≥98.0 |
| Refractive Index, n²⁵D |
1.4450-1.4550 |
Characteristic advantages
- Hydrolysis condensation and bis‑mercapto crosslinking
- High reactivity with metal coordination capability
- Good compatibility and safety
- Hydrophobicity and stability
Application field
- Rubber and composites
- Adhesives and sealants
- Surface treatment and advanced materials
- Emerging high‑value‑added applications
Safe handling
- Wear eye protection and protective gloves as required while handling the product
- Use the product in a well ventilated area
- Please consult our MSDS
Use storage
- When stored in its original container below 40°C and unopened, the shelf life is 2 years. It can still be used after re-inspection
- Store in a cool and dry place out of direct sunlight
- Keep out of the reach of children
Packaging Information
- Available in 25KGS drum, 200KGS drum or 1000KGS IBC
