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 |
○ |
|