EN
NBR Nitrile Rubber Compound for Oil-Resistant Seals and Gaskets
Material: NBR
Hardness: 30-95 Shore A
Color: Customizable
Operating temperature: -55°C to +130°C
Typical applications: Fuel lines, hydraulic seals, oilfield equipment
Note: We only supply rubber compounds (customizable in hardness, color, and formulation).
- Description
- Applications
- Specifications
- Advantage
- FAQ
- Recommended Products
Description
NBR is a copolymer of acrylonitrile and butadiene, offering excellent oil resistance, particularly tomineral oils, fuels, and lubricants. It is resistant to abrasion and water, but not to polar solvents(e.g., ketones, ozone). By adjusting the acrylonitrile content, a balance between oil resistanceand low-temperature performance can be achieved. WINBEST offers custom formulations tomeet different oil resistance grade requirements.
Applications
Fuel system O-rings
Hydraulic oil seals
Oilfield blowout preventer (BOP) seals
Industrial rubber rollers
Specifications
|
Common Name |
Nitrile Butadiene Rubber Compound |
|
Hardness(SHA) |
30A~95A |
|
ASTM D-2000 Classification |
BG |
|
Tensile(Mpa) |
10~20 |
|
Elongation at Break(%) |
300~800 |
|
Compression Set (100℃×22h，%) |
≤25 |
|
Temperature Range |
-40℃~+120℃ |
|
Specific Gravity（g/cm³） |
1.00~1.20 |
|
Resistances |
Excellent oil resistance |
|
|
Good low temperature resistance |
|
|
Good chemical stability |
|
|
Excellent physical, mechanical and processability |
|
Curing Systems |
Sulfur or peroxide |
|
Production process |
Molding |
|
|
Extrusion |
|
Formula & color |
Custom |
|
Shelf Life |
5–7 days with accelerator, 1 -2years without accelerator. |
|
Storage conditions |
Store in a cool, dry place in sealed containers to prevent moisture absorption and loss of active ingredients. |
Advantage
Cost-effective oil resistance: First choice for general oil sealing applications.
Low compression set: Long-term sealing performance.
Adjustable acrylonitrile content: Balances oil resistance and low-temperature flexibility .
Abrasion & water resistance: Suitable for hydraulic seals and fuel lines.
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.).
