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Chemglass Life Sciences DuPont Kalrez 4079 perfluoroelastomer O-ring, AS568 size #011 (Chemglass CG-308K-011)
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Catalog No. NC2584139
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Kalrez 4079 is a high-performance perfluoroelastomer O-ring compound designed for demanding chemical and high-temperature sealing applications. It offers excellent chemical resistance, thermal stability, and low compression set for reliable sealing in semiconductor, chemical processing, and aerospace environments.

  • Perfluoroelastomer compound with carbon-black filler.
  • Low compression set for long-term sealing performance.
  • Excellent chemical resistance with low swell in many acids and aldehydes.
  • High thermal stability up to 316°C (600°F).
  • Good mechanical properties and resistance to hot air aging.
  • Suitable for O-rings, diaphragms, and seals in semiconductor, chemical processing, and aerospace applications.
  • Not recommended for hot water/steam or contact with certain hot aliphatic amines, ethylene oxide, or propylene oxide.

Catalog No. NC2584139 Supplier Chemglass Life Sciences Supplier No. CG308K011
May include imposed supplier surcharges.
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Kalrez 4079 is a high-performance perfluoroelastomer O-ring compound designed for demanding chemical and high-temperature sealing applications. It offers excellent chemical resistance, thermal stability, and low compression set for reliable sealing in semiconductor, chemical processing, and aerospace environments.

  • Perfluoroelastomer compound with carbon-black filler.
  • Low compression set for long-term sealing performance.
  • Excellent chemical resistance with low swell in many acids and aldehydes.
  • High thermal stability up to 316°C (600°F).
  • Good mechanical properties and resistance to hot air aging.
  • Suitable for O-rings, diaphragms, and seals in semiconductor, chemical processing, and aerospace applications.
  • Not recommended for hot water/steam or contact with certain hot aliphatic amines, ethylene oxide, or propylene oxide.

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