| 
                  
                    
                      |  |  
                      | Color |  
                      | Polymer |  
                      | Compression   Deflection |  
                      | at 25% -   PSI |  
                      | Compression Set |  
                      | at 50%   deflection at 158°F |  
                      | Accelerated Ageing |  
                      | % change in   compression deflection at 158°F |  
                      | Temperature Range |  
                      | Density -   Average pounds/cubic foot
 |  | 
                  
                    
                    
                      | Black |  
                      | Natural Rubber |  
                      | Soft | Med. | Med. Firm
 | Firm | Extra Firm
 |  
                      | 2-5 | 5-10 | 10-16 | 16-22 | 22+ |  
                      | - |  
                      | 15%   Maximum |  
                      | - |  
                      | +/-    20% |  
                      | -40°F to 160°F |  
                      | 20 | 26 | 30 | 33 | 36 |  | 
                  
                    
                    
                      | Black |  
                      | Neoprene Medium Oil Swell |  
                      | Soft | Med. | Med. Firm
 |  
                      | 2-5 | 5-9 | 9-13 |  
                      | - |  
                      | Not   Applicable |  
                      | - |  
                      | +/-    20% |  
                      | -40°F to 175°F |  
                      | 29 | 33 | 38 |  |