EN
High-quality NR natural rubber, constant-viscosity standard rubber for use in tyres and industrial products
Material: NR Rubber Compound (Natural Rubber Compound)
Hardness: 30A–95A
Color: Customizable
Typical applications: Tire manufacturing, industrial products, medical supplies
Note: We only supply rubber compounds (customizable in hardness, color, and formulation).
- Description
- Applications
- Specifications
- Advantage
- FAQ
- Recommended Products
Description
NR is primarily composed of polyisoprene (92–95%). As the most important natural elastomer, natural rubber occupies a central position in the global rubber industry due to its excellent overall performance and renewable characteristics. Through a special constant-viscosity process, this product offers stable viscosity and excellent processability, making it particularly suitable for large-scale industrial production.
Applications
Tire industry: Tread and carcass of truck tires, off-the-road (OTR) tires, and aircraft tires
Industrial products: Hoses, belts, anti-vibration products, seals
Medical field: Medical gloves, catheters, infusion bags
Specifications
|
Common Name |
Natural Rubber Compound |
|
Hardness(SHA) |
30A~95A |
|
ASTM D-2000 Classification |
AA |
|
Tensile(Mpa) |
>20 |
|
Elongation at Break(%) |
100 ~ 1000 |
|
Compression Set（%） |
< 15 |
|
Temperature Range |
-20℃~+100℃ |
|
Specific Gravity（g/cm³） |
0.91~0.93 |
|
Resistances |
Excellent resilience |
|
Excellent alkali resistance |
|
|
Excellent mechanical strength |
|
|
Good electrical insulation property |
|
|
Curing Systems |
Sulfur curing |
|
Production process |
Molding |
|
Extrusion |
|
|
Formula & Color |
Custom |
|
Shelf Life |
With accelerator: 7–10 days; without accelerator: 1-2 years. |
|
Storage conditions |
Store in a cool, dry place. After opening, seal tightly to prevent moisture absorption and loss of active ingredients. |
Advantage
Excellent overall performance: Natural rubber offers outstanding comprehensive mechanicalproperties, with a balanced combination of elasticity, strength, and abrasion resistance.
High elasticity and low hysteresis loss
Good air tightness: Excellent gas barrier properties, making it particularly suitable formanufacturing inner tubes and bladder-type products.。
FAQ
Q: Do you sell finished products or raw materials?
A: We only supply rubber compounds, not finished products. You can choose hardness, color, and formulation based on your product needs. We mix to order and deliver.
Q: What rubber types can you handle?
A: Common types include NR, SBR, BR, NBR, EPDM, CR, silicone rubber, fluororubber, etc., subject to actual capability.
Q: Are hardness and formulation linked?
A: No. The same hardness can be achieved with different formulations. The difference lies in tensile strength, tear resistance, compression set, oil resistance, aging resistance, etc. Tell us your application and we’ll recommend the right system.
Q: Can you compound to the customer’s formula?
A: Yes. We support toll processing with customer-supplied materials or mixing to a customer-specified formula. We can also recommend a formula based on performance requirements.
Q: How do you ensure batch-to-batch consistency?
A: Through raw material batch control, fixed mixing process parameters, and sampling tests (hardness, specific gravity, Mooney viscosity, etc.).
