Natural Sponge Foam
EMCO Industrial Plastics carries Natural Sponge foam available in strip, sheet, roll, or custom gasket forms. Natural sponge exhibits excellent abrasion resistance and is often used in applications with repetitive sealing. Available in an open cell type, with pre-applied Acrylic Adhesive backing options, and a textured finish.
Our Natural Sponge materials are available in thicknesses of 1/16” to 1”, including all standard iterations of inch and metric thickness measurements across this range. Continuous strips, rolls, and sheets are available in any width from 1/4” to 36”, and lengths up to 225’. In-house CNC gasket cutting, machining, and waterjet cutting capabilities promote tight tolerances, repeatable accuracy, and rapid part development across our entire Natural Sponge offering.
Material Highlights
- Great resistance to biofuels
- Good resistance to weather, ozone, and oxidation
- Excellent aging, resiliency, and flexibility characteristics
- Flexibility retained even in low temperatures
Material Grades
| Standard |
Made of industrial grade materials for general purpose use. |
Cell Types
| Open Cell |
Allows liquids and gasses to passing through. |
Firmness
| Extra Soft |
0 to 4 psi |
| Soft |
5 to 8 psi |
| Medium |
9 to 13 psi |
| Materials | Cell Type | Grade | Firmness | Color | Texture | Compression
Deflection
@ 25% | Density | Tensile Strength | Temp Range | Specifications |
|---|
| Natural Sponge |
Natural sponge exhibits excellent abrasion resistance and is often used in applications with repetitive sealing. |
| NATSR |
Open Cell |
Standard |
Extra Soft (0 - 4 psi) |
Black |
Textured |
4 psi |
22 lbs / cu. ft. |
Not Rated |
-20° to 160° F |
ASTM D1056 1A1, MILC-3133, MIL-STD-670 |
| NATSR |
Open Cell |
Low Compression Set |
Soft (5 - 8 psi) |
Black |
Textured |
8 psi |
26 lbs / cu. ft. |
Not Rated |
-20° to 160° F |
ASTM D1056 1A2, MILC-3133, MIL-STD-670 |
| NATSR |
Open Cell |
Low Compression Set |
Medium (9 - 13 psi) |
Black |
Textured |
13 psi |
30 lbs / cu. ft. |
Not Rated |
-20° to 160° F |
ASTM D1056 1A2, MILC-3133, MIL-STD-670 |
| Pre-Applied Adhesive |
EMCO Plastics offers pre-applied adhesive to all foam materials. Options include single or double-sided application and a lined backing. |
| |
Temperature Range |
Adhesive Material |
Thickness |
Shelf Life |
| Acrylic Adhesive |
-30° to 250° F |
Acrylic |
1.3 Mils. |
18 Mo. from Application |
