Foam and Sponges

Foams and sponges are used in almost every industry for a variety of different functions. While foams and sponges are two different material types, they have many similar traits. Generally speaking, foams have an open-celled structure and are plastic based while sponges have a closed-cell structure and are rubber based. However, there are exceptions to those guidelines. Whether you are looking for insulation, absorption, or sealing and gasketing, there is bound to be a perfect product for you.

A Wide Range of Applications

  • OEM Equipment: Shock / impact absorption, shock isolation, gasketing, air / dust / oil / water seals, sound vibration dampening, LCD seals, bumper pads
  • Transportation: Seats, seals, noise/vibration pads, wiring harness, trunk and door seals, insulation
  • Sports & Recreation: Viton, Flourosilicone, Duck and Rubber, Diaphragm material
  • Construction: Electrical box seals, weather stripping, pipe wrapping, lighting fixtures, oil seals

Things to Consider

When determining which foam or sponge product best suits your application, ask yourself the following:

  • What is the application sealing?
  • What density does the application require?
  • What is the temperature requirement?
  • Is there a compression set requirement?
  • To which elements will it need to be resistant (chemical, ozone, UV)?
  Neoprene Blend ANR 4111-N Silicone Bisco HT-800 Silicone St. Gobain R10460 Polyimide Solimide TA-301 Cellular Urethane Poron 4701-40
Cell Structure Closed Closed Closed Open Open
25% Compression Deflection 2-5 PSI 6-14 6-14 PSI 1.2 PSI (at 50% compression deflection) 4-40
Density (p.c.f.) 7-11 20 Not Available 0.4 15-30
Temperature Range -70° - 225° F -67° - 392° F -100° - 500° F 400° F 194° F
Water Absorption (by weight) 5% 1.4% 5% Not Available 2%
Compression Set
Fair Excellent Excellent Fair Excellent
Chemical Resistance Fair Good Excellent Good Excellent
UV Resistance Fair Excellent Excellent Fair Good
Ozone Resistance Good Excellent Excellent Fair Good
Flammability Rating UL 94 HBF Pass UL 94 HF-1UL 94 V-0 UL 94 HBF UL 94 V-0 UL 94 HBF Pass

**Note: Chart is for quick reference only, not for specification writing. Always check data sheets for values.