| Property | Greatest | Least |
| Hardness | — | — |
| Tensile Strength | Ester | Ether |
| Elongation | — | — |
| Modulus | — | — |
| Tear Strength | Ester | Low Cost Ether |
| Compression Set | TDI | MDI |
| Rebound | MDI Ether | TDI Ether |
| Low Temperature Properties | MDI Ether | TDI Ester |
| High Temperature Properties | TDI | MDI |
| Abrasion Resistance: -sliding -impingement |
Ester MDI Ether |
Low Cost Ether |
| Heat Buildup | Ether | Ester |
| Hydrolysis Resistance | MDI Ether | TDI Ester |
| Oil Resistance | Ester | Ether |
| Heat Aging | Ester | Low Cost Ether |
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