EN
High-cure BR butadiene rubber compound, 65A, black, for low rolling resistance tyres and cold-resistant seals
Material: BR Rubber Compound(Butadiene Rubber)
Hardness: 35A-80A
Color: Customizable
Typical applications: High-performance tires, rubber shoes, conveyor belts, cold-resistant seals
Note: We only supply rubber compounds (customizable in hardness, color, and formulation). We do not manufacture or sell any finished rubber products. After receiving the compound, customers may carry out downstream processes such as molding and curing themselves or through a third party.
- Description
- Applications
- Specifications
- Advantage
- FAQ
- Recommended Products
Description
Chloroprene rubber (BR), whose full name is cis-1,4-polybutadiene rubber, is a synthetic rubber with a highly regular molecular structure. Its most notable characteristics are extremely low hysteresis loss (low heat generation) and excellent abrasion resistance, making it a key material for manufacturing low-rolling-resistance tires.
Applications
Tire industry, footwear manufacturing, industrial products: hoses, sealing rings, anti-vibration rubber.
Specifications
|
Common Name |
Butadiene Rubber Compound |
|
Hardness(SHA) |
35A~80A |
|
ASTM D-2000 Classification |
AA |
|
Tensile(Mpa) |
10 ~ 18 |
|
Elongation at Break(%) |
300 ~ 500 |
|
Compression Set（%） |
< 15 |
|
Temperature Range |
-60℃~+100℃ |
|
Specific Gravity（g/cm³） |
0.90 ~ 0.94 |
|
Resistances |
Excellent resilience |
|
|
Excellent wear resistance |
|
|
Excellent cold resistance |
|
|
Good bending resistance, flexibility and dynamic performance |
|
Curing Systems |
Peroxide |
|
Production process |
Molding, Extrusion |
|
Formula & color |
Custom |
|
Shelf Life |
5–7 days with accelerator, 1 -2year without accelerator. |
|
Storage conditions |
Store in a cool, dry place. After opening, seal tightly to prevent moisture absorption and loss of active ingredients |
Advantage
Excellent abrasion resistance
Excellent cold resistance: Glass transition temperature (Tg) as low as -110°C, maintains excellent elasticity even at -50°C
Low rolling resistance (energy saving)
Excellent high elasticity
Excellent flex resistance
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.).
