CR2444 Polychloroprene Rubber
Product Overview
CR244 is a specialized adhesive-grade polychloroprene rubber manufactured by HuojiaChanghua, specifically designed for contact adhesive applications. This high-performance synthetic rubber provides excellent bonding strength and versatility for various substrate combinations.
The CR244 series offers multiple viscosity grades to meet different application requirements, from low-viscosity formulations for easy application to high-viscosity grades for demanding structural bonding applications.
| Property | Unit | Value | Standard |
|---|---|---|---|
| Mooney Viscosity ML(1+4)100°C | - | 85±5 | GB/T 1232.1 |
| Volatile Matter | % | ≤1.0 | GB/T 1232.1 |
| Ash Content | % | ≤1.0 | GB/T 4498.1 |
| Tensile Strength | MPa | ≥26 | GB/T 528 |
| Elongation at Break | % | ≥300 | GB/T 528 |
| Shore A Hardness | - | 75±5 | GB/T 531.1 |
| Compression Set (%) 22h×70°C | - | ≤18 | GB/T 7759.1 |
| Heat Aging 70°C×168h Tensile Strength Change | % | ≤±15 | GB/T 3512 |
| Heat Aging 70°C×168h Elongation Change | % | ≤±20 | GB/T 3512 |
Key Applications
- Contact adhesives for rubber-to-metal bonding
- Leather and textile lamination adhesives
- Fiber reinforcement bonding applications
- Wood and furniture assembly adhesives
- Construction and building material bonding
- Cement product adhesive formulations
Key Properties
- Excellent adhesion to various substrates
- Fast tack development and strong initial bond
- Good heat and chemical resistance
- Flexible bond line maintains elasticity
- Wide range of viscosity options available
- Compatible with various solvents and additives
Processing Guidelines
- Recommended solvent systems: Toluene, MEK, or approved solvent blends
- Typical solid content: 15-25% depending on application requirements
- Application temperature: 15-35°C for optimal performance
- Open time: 5-30 minutes depending on grade and conditions
- Cure time: 24-48 hours for full bond development
Packaging & Storage
- Standard packaging: 25kg per bale, wrapped in polyethylene film
- Storage temperature: Below 25°C in dry, ventilated warehouse
- Shelf life: 12 months from production date under proper storage conditions
- Protect from direct sunlight and heat sources
- Store away from oxidizing agents and strong acids
Quality Standards
- Manufactured according to Q/JYS25-2014 standard
- ISO 9001:2015 certified production facility
- Batch-to-batch consistency testing
- Application testing support available
- Technical documentation and MSDS provided
Request Quote
For detailed specifications, pricing, and availability of CR2444 Polychloroprene Rubber, please contact our sales team.
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