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MS Polymer Sealant
JR-991 is a one-component, moisture-curing MS polymer sealant based on silane-modified polymer technology. It provides strong adhesion, excellent weather resistance and a low-VOC, isocyanate-free formulation for construction and transportation sealing applications.
| Technology | Silane Modified Polymer (SMP) |
| Curing Type | One-Component, Moisture Curing |
| Service Temperature | -50°C to 80°C |
| VOC | Low VOC |
| Isocyanate | Free |
Data Sheet:
JR-991 MS Polymer Sealant
Contact Our Sealant Expert Technical parameters and application recommendations may vary according to substrate, installation conditions and project requirements.
Description
Specifications
Advanced SMP Technology for Reliable Sealing Performance
JR-991 is a one-component moisture-curing sealant based on silane-modified polymer technology. It provides strong cohesive strength and reliable adhesion to metals, glass and various construction substrates.
Unlike conventional polyurethane sealants, JR-991 contains no isocyanates, solvents or silicone, offering a low-VOC and environmentally friendly sealing solution.
Why Choose JR-991?
Applications
Automotive Body Sealing
Industrial Component Assembly
Building & Surface Repair
Rubber & Membrane Bonding
Need the Right Solution for Your Project?
Contact our technical team for product recommendations, samples, customization support and professional solutions tailored to your application requirements.
| Property | JR-991 |
|---|---|
| Polymer Technology | Silane Modified Polymer (SMP) |
| Component | One-Component |
| Cure Mechanism | Moisture Curing |
| Initial Tack | High |
| Cure Characteristics | Rapid, Non-Foaming |
| Weather Resistance | Excellent |
| UV Resistance | Excellent |
| Paintability | Paintable |
| Repair / Finishing | Sandable |
| Service Temperature | -50°C to 80°C |
| VOC | Low VOC |
| Isocyanates | Free |
| Solvents | Free |
| Silicone | Free |
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