COHRlastic® Foam Rubber

COHRlastic® F-12 modified cell silicone foam rubber provides excellent flame retardancy (UL 94 V-0) with low toxicity and smoke generation in a conformable expanded cellular material. COHRlastic F-12 is produced in a low 12 lb/ft3 density for light gasketing and insulation applications.

F-12 ranges in thickness from 1/16” (1.59mm) to 1” (25.4mm). The standard color is gray, but it is also available in white and black, with minimum quantity requirements.

F-12 also comes in pressure-sensitive adhesive tape form as Strip-N-Stick® 512AF, with a film-supported acrylic pressure-sensitive adhesive on one side. COHRlastic F-12 offers excellent compression set resistance and resistance to the environment.

Product Range

  • F-12 – standard product
  • F-11, F-14 and F-15 — custom product offerings
  • SNS 512AF – F-12 in Strip-N-Stick pressure-sensitive adhesive tape roll format

Features & Benefits

  • Passes UL 94 V-0 – flamer in electronic and electrical equipment
  • Passes FAR 25.853 (A-1 and B) and FAR 25.856 (A-1) – flame retardant for aerospace applications
  • Passes requirements of FDA extractables 21.CFR177.2600 – extremely clean elastomer that can be used in non-direct food contact applications
  • Excellent compression set resistance – instant recovery in compression applications
  • Excellent long-term aging properties – gasket reliability that often outlasts final product
  • Weather, moisture, ozone, UV and fungus resistant – perfect gasketing material for outdoor applications
  • Can be supplied with acrylic pressure-sensitive adhesive for ease of application


  • Aircraft flame retardant barrier blankets
  • Aircraft flame retardant underlayment
  • Outdoor light gasketing
  • Appliance gasketing
  • Military equipment gasketing
  • Electronics gasketing
  • Electrical insulation
  • Sound damping gasketing

Back To All Rubbers

As a AS9120B and ISO 9001 certified organization, we continue to strive to deliver the best service and experience in the industry. You, the customer, has always been are focus and we will continue to deliver the best long into the future.