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Sponge Rubber > Closed Cell > 4055

PHYSICAL PROPERTIES 
Type 4055
Polymer Epichlorohydrin (ECH)
Color Black
ASTM D-1056-00 Classification 2B5
ASTM D-6576-00 Classification

Type II, A/B, Firm
25% Compression Deflections1 (psi) 17 - 25
Compression Set2 (%) < 25
Density3 (lbs/ft3) 23 ± 6
Water Absorption4 (%) <5
Tensile5 (psi) 120 min.
Elongation6 (%) 250 min.
Flammability7 - FMVSS302 Pass
Standard Sheet Size (in.) +/- 3% 36" x 42"
Expected Yield (in.) .875"
From full bun-thickness-based on 2 level cuts  
   

125% Compression Deflections..........ASTM D-1056
2 Compression Set....................ASTM D-1056
3 Density........................................ASTM D-1056
4 Water Absorption..........................ASTM D-1056
5 Tensile........................................ASTM D-412
6 Elongation...................................ASTM D-412
7 Flammability - This item and any corresponding data refer to typical performance in the specific test indicated and should not be construed to imply this material's behavior in other fire conditions.

 Other gauges and widths may be available. Please refer to Customer Service.

Note: SAEJ 18 is equivalent to ASTM D-1056.

Issued : 10/01/04