We supply the following Rubber Compounds:
- Natural Rubber (NR)
- Styrene-Butadiene Copolymer (SBR)
- Polybutadiene (BR)
- Iso-butylene-Isoprene Copolymer (IIR, CIIR, BIIR)
- Ethylene-Pr-opylene-Diene-Monomer (EPDM)
- Polychloroprene (CR)
- Acrylonitrile-Butadiene Copolymer (NBR, HNBR)
- Chlorosulfonated Polyethylene (CSM)
- Fluoroelastomer (FKM)
- Polyacrylate rubber (ACM)
- Epi-chlorohydrin rubber (ECO)
- Silicone rubber (VMQ)
Properties of NBR
1. Oil and Fuel Resistance:
- Excellent resistance to aliphatic hydrocarbons (e.g., gasoline, diesel), lubricants, and animal/vegetable oils.
- Limited resistance to polar solvents (e.g., ketones, esters) and ozone.
2. Temperature Range:
- Standard grades: -30°C to 100°C; specialty grades (e.g., hydrogenated NBR/HNBR) extend to -40°C to 150°C.
3. Mechanical Strength:
- Tensile strength: 10–30 MPa; enhanced by carbon black/silica fillers.
4. Abrasion Resistance:
- Superior to natural rubber (NR) and EPDM in oil-contaminated environments.
5. Compression Set:
- Moderate performance; peroxide-cured NBR improves resilience.
Cure Systems:
- Sulfur-Cured NBR: Cost-effective, standard for general-purpose seals.
- Peroxide-Cured NBR: Higher heat resistance, lower compression set.
Industry Applications
1. Automotive:
- Fuel hoses, O-rings: Resists biodiesel and ethanol-blended fuels (SAE J30 compliant).
- Gaskets and seals: For engines, transmissions, and hydraulic systems.
2. Oil & Gas:
- Drilling equipment seals: Tolerates drilling muds and crude oil.
- Pipeline gaskets: Resists sour gas (H₂S) in hydrogenated NBR (HNBR).
3. Industrial Machinery:
- Hydraulic seals, pump diaphragms: Compatible with mineral oils.
4. Consumer Goods:
- Printing rollers, footwear: Oil-resistant soles and components.
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