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Semi-Open Cell EPDM is an extremely soft and flexible EPDM sponge rubber.

The cell structure of Semi-Open Cell EPDM is created in the manufacturing process by physically “bursting” the closed cell structure in order to create a product that is softer and therefore easier to compress than the more traditional sponge rubber. This also means that Semi-Open Cell EPDM offers much better recovery after compression.

Semi-open cell EPDM

The super-soft nature of Semi-Open Cell EPDM provides excellent sealing capabilities once compressed. Due to low compression load, the foam can compensate for dimensional deviations in substrates and can, therefore, be applied to both rough, smooth and low energy surfaces.

Semi-Open Cell EPDM offers the following key features:

  • Resistance to ozone and UV light
  • High and low-temperature resistance
  • Super-soft
  • Semi-closed / semi-open cell structure
  • Excellent acoustic performance
  • Good weather-ability
  • Low compression load
  • Good compression set
  • Good water and air sealing
  • Excellent ageing
  • Thicknesses available from 3mm to 50mm

Here at Advanced Seals & Gaskets, we are able to convert Semi-Open Cell EPDM into the following:

Any of the above Semi-Open Cell EPDM products can be supplied in either plain or self-adhesive backed.

Semi-Open Cell EPDM has many different applications including:

  • Automotive application
  • HVAC units
  • Air duct sealing

Help with Semi-Open Cell EPDM

If you would like to speak with a representative to discuss your specific application or requirements please call our sales office direct on 01384 469100, alternatively, you can send an E-mail. Simply click on the link and forward us your details along with your question and we will contact you immediately.


For more details use the form below or contact us on 01384 469100.


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