Diaphragm Rubber

 Rubber Diaphragm (Diaphragm Seals): Diaphragm rubber seals are flexible seals that block undesired items between two places. Diaphragm rubber can prevent many different substances such as liquids, gasses, and other solutions. This material is tough and effective when it comes to blocking unwanted substances. In compliance with the rubber molding industry standard RMA A2 Precision tolerances, this material is designed for specific industry applications, including pneumatic actuators, pumps and control valves

Our rubber diaphragm comes in a variety of different rubber compounds and material to fit any need. 

  • Natural Rubber (NR) 
  • Nitrile, Buna-N (NBR) 
  • EPDM 
  • Viton® (FKM) 
  • Silicone 
  • Neoprene®


  • Elongation: 350% minimum
  • Hardness Range (Durometer Shore A): 60
  • Tensile: 800 psi minimum

  • Minimum Service Temperature: -20°F
  • Maximum Service Temperature: 170°F

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