MATERIALS
Foam & Sponge

Atlantic Gasket Corporation stocks both sponge and foam materials, which exhibit different mechanical and physical properties. Each is available in several densities, and polymer variations that make them suitable for diverse applications from gaskets, seals, spacers and cabinet bumpers to adhesive backed tapes just to mention a few of the most common uses. Read on or contact Atlantic Gasket directly for more information on the material specifications for sponge and foam.

Sponge Materials:

Closed Cell Neoprene offers good resistance to acid, alkali, gasoline, and oil. Neoprene can be supplied in 9 and 16# densities.

Closed Cell EPDM offers excellent ozone resistance and performs well in applications where temperatures can range from -90 to 275°F. EPDM can be supplied in 12 and 16# densities.

Closed Cell Nitrile (Buna-N) offers excellent fuel resistance and excellent UV resistance and performs well in applications where temperatures can range from –40 to +200°F. Nitrile is supplied in 14# density.

Closed Cell Silicone offers excellent sealing qualities, plus compression set, flame, ozone, and UV resistances. This high-end material is widely used for demanding applications and is excellent for applications that will be exposed to extreme temperatures ranging from –103 to 450°F. Our Silicone material is available from soft to extra firm densities in orange/red, black, gray, and white colors.

Closed Cell ECH (Epichlorohydrin) offers excellent fuel resistance and performs well in applications where temperatures can range from –70 to +275°F. ECH is supplied in 15# density.

Closed Cell EVA (Ethylene Vinyl Acetate) offers excellent resistance to acid, alkali, ozone, and ketones. This blend can be supplied in 2, 4, and 8# densities and performs well in applications where temperatures can range from –70 to +160°F.

Closed Cell Neoprene/EPDM/SBR blend is an excellent general-purpose material designed to seal out water, dust, and air. This material is available in soft, medium, and firm densities.

Closed Cell PVC/Nitrile blend offers excellent resistance to acid, gasoline, oil, and ozone. This blend can be supplied in 4, 5, 6, 7, and 13# densities and performs well in applications where temperatures can range from –40 to +160°F.

Closed Cell Neoprene/PVC/Nitrile blend offers good chemical resistance and is fire-rated. This blend can be supplied in 4, 6, and 8# densities and performs well in applications where temperatures can range from –40 to +200°F.

Natural Open Cell Sponge is excellent for cushioning applications as well as applications that require a skid resistant surface and is available in soft, medium, medium firm, firm, and extra firm densities. The major advantage of this material is that it does not take a compression set.

Neoprene Open Cell Sponge has all the same features of the natural open cell sponge, but works well in applications that may come in contact with petroleum-based products. This material also meets various military and ASTM specifications including Mil-R-6130, Mil-C-3133, and Mil STD 670 and is available in soft, medium, and medium/firm densities.

Foam Materials:

In addition to the wide range of sponge materials, Atlantic Gasket has many foam materials available that are diverse in their chemical composition and mechanical properties. Some of the most common types used for gaskets and other die cut parts are:

Cross-linked Polyethylene Foam is economical and suitable for many applications. With a general thickness range of 1/32” to 1”, this material has a low density (2-12 PCF), high strength to weight ratio, resistance to moisture, and a wide range of mechanical properties and colors.

Polyurethane Foam is available in Polyester and Polyether formulations that are typically 2 or 4 PCF. Charcoal gray in color, these foams come in thicknesses from 1/16" to 3” and can be used for dust seals, filters, sound deadening and many other applications.

Cellular Urethane Foam is a high density, stable foam that offers strength, low compression set, and dimensional stability. With a normal thickness range is 1/32” to 1/2”, cellular urethane foam is used in shock control and cushioning applications.

PVC Foam is a general-purpose closed cell foam with good air, moisture, and dust sealing properties, plus UV and chemical resistance. Density range of 6 to 15 PCF, thickness from 1/32” to 1”.