Comparison of the characteristics of polyurethane (ether based and ester based)
| BOSS Sealing Solutions | |||
Properties | ether based（Shore A 95・90） | ester based（Shore A 90・70・50・30） | |
Tensile strength | ○ | ||
Elongation rate | ○ | ||
Tear strength | ○ | ||
Rebound elasticity | ○ | ||
Wear resistance | sliding wear | ○ | |
gouging abrasion | ○ | ||
Hydrolysis resistance | ○ | ||
Oil resistance | ○ | ||
Strength | ○ | ||
Durability | ○ | ||
Acid and alkali resistance | ○ | ||