Gum-based polydimethylsiloxane (PMDS) is used to make a majority of the commercially available silicone sponge products. The silicone elastomer expands at the time of heat curing; this expansion process leads to the closed-cell sponge structure. The biggest difference between a “foam” and a “sponge” is that foam is an open-cell while a sponge is a closed-cell.
Silicone Sponge is available in soft, medium, hard, and X- Hard densities. Medium-density is the most common one. Various colour options are available. Generally, it features a fine fabric finish on both sides of its surface and is available in o-ring cord, square cord, hollow, custom shape, and gasket sheets up to 2″ thick.
Understanding the hardness of sponge products.
Gaskets and O-Rings made from close cell sponge silicone offers excellent sealing solution due to its number of outstanding properties.
- silicone sponge rubber cord,
- silicone sponge tubing,
- silicone foam rubber gasket,
- silicone sponge square cord,
- silicone sponge rubber strip
- custom extruded silicone sponge profiles – we will need a drawing.
We stock & sell high-quality medium density closed cell sponge Silicone Cord in the colour red. We can supply all standard metric sizes. We stock the following inch sizes, .139”, .156”, .188” .250”, .318”. Sizes not listed in metric and inch are available upon request.
The smooth surface skin of our Closed Cell Silicone Sponge Rubber Cord, Tubing, Strips, Seal and allows very little water absorption and prevents water and dust entrance.
Silicone Sponge offers:
- Excellent Temperature Resistance
- UV resistance
- Ozone resistance
- high compression set
COR can supply custom silicone sponge extrusion profiles in many sizes and shapes. Send us your requirements in a dwg., pdf or even on a napkin, with dimensions and we can try and quote according to your request.
- Food Processing Machinery Seal
- Oven Seals
- Door Seals
- Lighting Fixture Gasket
- Electrical Enclosure
- High-Temperature Sealing
- General Sealing in different Industries
- Pharmaceutical Equipment
- Hot & Cold Thermal Insulation
- Energy Industry