| "Common Name" Base Polymer | EPDM or EP Rubber | Neoprene | Nitrile or Buna-N | Natural Rubber |
| Chemical Name | Ethylene Propylene | Chloro-Prene | Acrylonitrile Butadiene | Natural Isoprene |
| ASTM Designation (ASTM D1418) | EP | CR | NBR | NR |
| Tensile Strength (psi) | >2000 | >2000 | >2000 | >2000 |
| Hardness Range (Durometer A) | 40-90 | 35-90 | 50-90 | 40-90 |
| Tear Resistance | G | G | F | G |
| Abrasion Resistance | G to E | VG | G | E |
| Compression Set | G | G | G | E |
| Resilience Cold | G | G | G | G |
| Resilience Hot | VG | VG | G | F |
| Radiation Resistance | O | G | P | F to G |
| Impermeability to Gases | G | G | G | F |
| Mild Dilute | E | E | F to G | F to P |
| Strong Concentrate | G | G | F to G | P |
| Aliphatic Hydrocarbons | P | F to G | E | P |
| Aromatic Hydrocarbons | P | P | P | P |
| Oxygenated (Ketones, etc) | G | P | P | P |
| Swelling in Lubricating Oil | P | G | VG | P |
| Oil and Gasoline | P | G | E | P |
| Animal Oils | F | F | E | P |
| Water Absorption | VG | G | VG | VG |
| Oxidation | E | VG | G | F to P |
| Ozone | O | VG | F | F to P |
| Sunlight Aging | O | VG | P | F to P |
| Heat Aging | VG | G | G | G to F |
| Low Temperature | VG | G | F to G | G |
| Flame | P | G | P | P |
| Vegetable Oils | F | G | G | P |
| Chlorinated Hydrocarbons | P | P | F | P |
Legend: O = Outstanding | E = Excellent | VG = Very Good | G = Good | F = Fair | P = Poor
