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Sponge Rubber > Closed CellR-421-N

PHYSICAL PROPERTIES 

Type R-421-N
Polymer Neoprene / EPT / SBR
Color Black
ASTM D-1056-67 Classification SCE-41
ASTM D-1056-00 Classification
Suffix Requirements
2A1
B3, C1, F2, M
ASTM D-6576-00 Type 2 Grade B and C Soft
UL 50 / 508 (JMST2 File #MH9949)  
25% Compression Resistance1 (psi) 2 - 5
50%  Compression Set2 (%) 35
Density3 (lbs/ft3) 7 - 11
Water Absorption4 (lbs/ft2) 0.1 max.
Tensile5 (psi) 50 min.
Elongation6 (%) 100 min.
Flammability7 - FMVSS302 Pass
-UL 94 HBF - 1/8" min.
Standard Sheet Size (in.) +/- 3% 42"x 60"
Expected Yield (in.) 2.25"
From full bun-thickness-based on 2 level cuts  
   

125% Compression Resistance..........ASTM D-1056
2 50% Compression Set....................ASTM D-1056
3 Density........................................ASTM D-1056
4 Water Absorption..........................ASTM D-1667a
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.UL 94-test valid for specific rating and thickness only. See UL 94 listing for details (File # E55475).

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

Note: SAEJ 18 is equivalent to ASTM D-1056. Mil 6130 has been replaced by ASTM D-6576-00

Issued : 10/01/04

 
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