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| Polymer |
Astm. Designation (D1418) |
Dura meter Range |
Abrasion Resistance |
Temp range |
Compression set |
Advantages |
| Nitrile |
NBR |
40-900A |
Excellent |
-400F to 2500F |
Good |
Oil Resistance to 2500 F. |
| Neoprene |
CR |
40-900A |
Good |
-400F to 2300F |
Good |
Ozone & oil resistance & heat resistance. |
| Styrene butadiene |
SBR |
35-900A |
Excellent |
-650F to 2250F |
Good |
Heat resistance & ozone resistance. |
| Viton |
FKM |
60-900A |
Good |
-1300F to 4500F |
Excellent |
Resistance to dry heat & oil. |
| Silicon |
SI |
30-850A |
Poor |
-1200F to 4500F |
Excellent |
Food grade & good electric properties. |
| EPDM |
EPR |
35-900A |
Good |
-400F to 3000F |
Good |
Ozone Resistance. |
| Natural Polysoprene |
NR |
30-950A |
Excellent |
-650F to 1800F |
Good |
High Resistance. |
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