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Description
🔬 Specifications of Chloroprene Rubber CR2444
| Property | Specification |
|---|---|
| Chemical Name | Chloroprene Rubber (CR2444) |
| Form | Chips / Pellets |
| Color | Pale yellow to light brown |
| Mooney Viscosity (ML 1+4, 100°C) | 38 – 50 |
| Crystallization Rate | Fast |
| Tensile Strength | ≥ 22 MPa (compound dependent) |
| Elongation at Break | ≥ 600% |
| Specific Gravity | Approx. 1.23 g/cm³ |
| Volatile Matter | ≤ 1.0% |
| Ash Content | ≤ 0.7% |
| Storage Stability | Excellent under dry and cool conditions |
| Packaging | 25 kg moisture-proof, PE-lined bags |
💡 Applications of CR2444 Chloroprene Rubber
1. Adhesives and Sealants
CR2444 is particularly effective in solvent-based adhesives, offering strong initial tack, fast crystallization, and superior bonding strength to leather, fabric, rubber, metal, and wood. It’s a staple in shoe manufacturing and industrial laminates.
2. Automotive and Mechanical Parts
Thanks to its resistance to ozone, oil, and weathering, CR2444 is used for CV boots, hoses, seals, gaskets, and other components exposed to harsh environmental conditions.
3. Construction Materials
Its high tensile strength and weatherability make CR2444 suitable for sealants, roofing membranes, and sound insulation materials.
4. General Rubber Goods
Utilized in the production of coated fabrics, conveyor belts, mats, and vibration damping materials where both flexibility and durability are required.
✅ Key Benefits
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✔️ High bonding performance – Ideal for adhesive applications
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✔️ Fast crystallization – Provides excellent handling and quick tack in bonding
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✔️ Outstanding weather and ozone resistance – Suitable for outdoor use
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✔️ Good processability – Easy to blend and mix with fillers or resins
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✔️ Long shelf life – Stable when stored properly
⚠️ Safety & Handling
When handling CR2444:
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Use protective gloves and eyewear to prevent irritation
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Ensure adequate ventilation when used in adhesive formulations
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Store in a cool, dry, and well-ventilated area, away from direct sunlight and heat sources
📌 Conclusion
Chloroprene Rubber CR2444 is a versatile, high-performance neoprene rubber offering fast crystallization, strong bonding capabilities, and exceptional weather resistance. Whether used in high-tack adhesives, automotive components, or industrial rubber products, CR2444 delivers the performance and reliability needed in demanding manufacturing environments. With its broad application range and consistent properties, it continues to be a trusted material across industries that require durability, strength, and environmental resistance.
