SealSpec / Custom gaskets / Neoprene sponge
Neoprene sponge gaskets
Custom-cut neoprene sponge gaskets (CR, closed-cell): where it works, where it fails, typical properties, and how to call it out on a drawing. Use the builder to spec your part in this material.
Typical properties
| Polymer | CR, closed-cell |
|---|---|
| Form | sponge |
| Service temperature | -40 to 212 °F |
| Firmness | Soft / Medium / Firm |
| Common thicknesses (in) | .062, .125, .187, .250, .375, .500 |
Typical ranges for the material family. Specific grades differ: confirm on the datasheet.
Strengths
- Balanced oil, weather and flame resistance
- Good general-purpose sponge
- Moderate cost
Watch out for
- Not for strong acids or ketones
- Weathering is weaker than EPDM
Typical applications
- Industrial enclosures
- Vibration and dust seals
- Transportation
Specs and standards to reference
- ASTM D1056
- Blends (neoprene/EPDM/SBR) are common: specify if pure CR is required
Chemical check: see Neoprene ratings across 2,088 fluids →