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 EPDM
1. Weather/Ozone Resistance:
- Resists UV radiation, ozone, and extreme temperatures (-50°C to 150°C), ideal for outdoor applications.
2. Chemical Stability:
- Excellent resistance to polar solvents (e.g., ketones, alcohols), weak acids/alkalis, and steam.
- Poor resistance to hydrocarbon oils and fuels.
3. Electrical Insulation:
- Low conductivity, making it suitable for cable insulation and electrical seals.
4. Flexibility and Elasticity:
- Retains elasticity at low temperatures, with a glass transition temperature (Tg) of ~-60°C.
5. Low Compression Set:
- Maintains sealing force under prolonged compression (e.g., gaskets).
Cure System:
- Peroxide-cured EPDM: Higher heat resistance (150°C+), better compression set.
- Sulfur-cured EPDM: Faster curing, lower cost.
Industry Applications
1. Automotive:
- Weatherstrips, door seals: Resistance to ozone and temperature cycling.
- Cooling hoses: Withstands glycol-based antifreeze.
2. Construction:
- Roofing membranes: UV and weather durability (ASTM D4637 compliant).
- Window gaskets: Long-term flexibility and seal integrity.
3. Electrical:
- Cable insulation: Meets IEC 60502 standards for high-voltage cables.
4. Industrial:
- HVAC systems: Resists steam and condensation.
- Conveyor belts: Non-marking, food-grade options (FDA 21 CFR 177.2600).
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