Guangzhou Eric Wei Chemical Co., Ltd.
Guangzhou Eric Wei Chemical Co., Ltd.

SK Suprene S505A EPDM

SK Suprene S505A is a high-performance EPDM elastomer from SK’s Suprene series, offering exceptional heat resistance, ozone stability, and weatherability. Designed for automotive seals, roofing membranes, and industrial gaskets, it delivers superior compression set resistance and processability. Its balanced cure characteristics ensure consistent vulcanization across diverse applications while maintaining excellent aging properties and low-temperature flexibility.
  • sk suprene s505a epdm_d42de817
  • sk suprene s505a epdm_d42de817

Features Of SK Suprene S505A EPDM

  1. High ethylene content for excellent compression set resistance and thermal stability.

  2. Optimized diene level enabling efficient sulfur and peroxide curing systems.

  3. Outstanding ozone, weathering, and UV resistance for long-term outdoor performance.

  4. Good processability in extrusion and injection molding due to controlled Mooney viscosity.

  5. Low extractables and high purity, meeting stringent automotive and potable water standards.

Typical Applications Of SK Suprene S505A EPDM

  1. Automotive weatherstrips, door seals, and trunk lid gaskets.

  2. Roofing membranes and waterproofing sheets for commercial buildings.

  3. Hot water pipes, expansion joints, and potable water system components.

  4. Industrial hoses, vibration dampers, and rail vehicle sealing profiles.

  5. Electrical insulation parts and cable jacketing for harsh environments.

Specifications Of SK Suprene S505A EPDM

Chemical TypeTerpolymer of Ethylene, Propylene, and a Non-Conjugated Diene (ENB)
Product FormPellets (free-flowing, non-dusty)
AppearanceOff-white to light tan, uniform cylindrical pellets
Mooney Viscosity (ML 1+4 @ 125°C)50 ± 5
Ethylene Content (wt%)62–66
Diene (ENB) Content (wt%)4.8–5.5
Ash Content (wt%)< 0.1
Volatile Matter (wt%)< 0.5


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