PU Selection Guidelines

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