MS Polymer (Silyl-Modified Polyether)
CAS Number: 67762-19-0
MS Polymer is a silyl-terminated polyether (silane-modified polyether) that combines the flexibility and adhesion of polyurethanes with the UV stability and paintability of silicones. It cures with atmospheric moisture at room temperature without isocyanates, making it an environmentally friendly choice for elastic bonding and sealing. MS Polymer-based adhesives and sealants offer excellent adhesion to most substrates including plastics, glass, metals, and painted surfaces without primers.
Technical Specifications
| moisture | ≤0.05% |
| viscosity | 10,000–30,000 mPa·s (25 °C) |
| appearance | Colorless to pale yellow viscous liquid |
| molecularWeight | 8,000–15,000 g/mol |
| silaneTermination | Dimethoxymethylsilyl or trimethoxysilyl |
Applications
- Elastic bonding for facades and curtain walls
- Automotive body sealing and hem-flange bonding
- Wood flooring installation adhesives
- Marine deck sealing and bonding
- General construction elastic sealants
Key Features
- Isocyanate-free — improved safety and regulatory compliance
- Paintable surface within hours of application
- Excellent adhesion to diverse substrates without primer
- Good UV and weathering resistance
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CAS Number
67762-19-0
Category
Adhesive / Sealant AdditivesAvailability
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