Expert Mechanical Seal Repair | Waterjet Cut | Precision Gasket Cutting

Sponge Gasket Materials

Neoprene Sponge, Silicone Sponge

Sponge Gasket Materials

NE Seal stocks high quality silicone sponge rubber and neoprene sponge rubber materials, available by the sheet or roll.

We manufacture precision custom die-cut or water-jet cut gasket seals for a variety of applications using silicone and neoprene sponge rubber materials.

Silicone Sponge Rubber and Neoprene Sponge Rubber are flexible, elastomeric materials used for sealing gaskets. Silicone and neoprene foam sponge materials provide great cushioning support for most any surface areas.

NE 501 - Neoprene® Sponge - Chloroprene (CR) Closed Cell

Sponge Neoprene Sheets
Distinct advantages are low water absorption, providing a tight seal and the ability to conform to curves and corners without bridging or creasing. Generally attacked by strong oxidizing acids, esters, ketones, chlorinated aromatic and nitro hydrocarbons.
Water Absorption (lbs/ft2) 0.1 max
Tensile Range (psi) 25 min
Compression Deflection at 25% (psi) 15000
Compression Set (%) 50
Elongation (%) 125 min
Temperature Range (°F) -30° to +200°

NE 508 - Silicone Sponge - (Closed Cell)

Sponge Sheets
Extreme low temperature properties. Can be highly resistant to oxidation and ozone attack. Generally attacked by most concentrated solvents, oils, concentrated acids, and dilute sodium hydroxide.
Compression Set Good
Elongation (max%) 120
Tensile Range (psi) 200 - 1500
Resilience Rebound Good
Abrasion Resistance Fair to Poor
Oil Resistance Fair to Poor
Temperature Tolerance (°F) -60° to +450°

According to your application needs, sponge rubber materials are available in several densities; low, medium and high.

Open Cell Sponge materials have interconnecting cells, under pressure the air to passes through material quickly. When the pressure is relieved, the air is drawn back into open cell quickly as well. Open Cell Sponge Rubber materials rebound quickly, returning to original thickness.

Closed Cell Sponge materials have non-interconnecting cells containing air. When force is applied, the cells cause the air to pass slowly through cell membranes. When pressure is relieved, some cells will quickly return to original thickness, some cells will slowly return to original shape, and some cells will remain as they were under pressure. Though, silicone sponge rubber materials are known to be more resilient to this sort of deformation.

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