Rubber compound for rubber lining and seal series

1.O-ring

Test Item                                           T est Results

Hardness (Shore A)                                   70

Tensile Strength (MPa)                              12

Elongation(%)                                           410

Compression set(125°C×22h)(%)           3

Fluid resistance)(1#oil 125°C×24h)

Change in volume)(%)                              -6

Fluid resistance)(3#oil 125°C×24h)

Change in volume)(%)                             10

2.Oil seal

Test Item                                             Test Results

Hardness(Shore A)                                   64

Tensile Strength(MPa)                              15

Elongation(%)                                          580

Compression set)(100°C×70h)(%)        25

Fluid resistance)(1#oil 100°C×70h

Change in volume)(%)                             -9.5

Fluid resistance(3#oil 100°C×70h)

Change in volume)(%)                            5.5