Every manufacturing technique has a tolerance, and as such when parts are assembled there are gaps which become part of the final product . Since a closed cell foam is impervious to gases or liquids, it is an ideal medium to use to plug these gaps. Closed cell foams can be used to prevent water or air from passing from one area to another and so they are an ideal medium for plugging the gaps.
The gases within bubbles can’t escape, and so if a heavy weight is dropped on a closed cell foam, the gases are compressed initially, but want to recover, which makes a closed cell foam ideal as a shock absorber.
Actual foam selection, is determined by the end use and environment where it is to be used.
- Seals & Gaskets
- Joint fillers
- Impact Protection products
- Thermal Insulation
- Extrusions for edge protector foam, pipe insulation foam or backer rod foam
Types of Closed Cell Foam or Sponge
- Neoprene Sponge Rubber
- EPDM Sponge Rubber
- Neoprene/EPDM Sponge Rubber Blend
- PVC or Vinyl Foam
- PVC/Nitrile or NBR Sponge Rubber
- Polyethylene Foam
- EVA Foam