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Rubber Gaskets |
Rubber Gaskets are mande by various type of rubbers, through by molding or cutting. According to the different temperature and medium to select the different materials.
RAW MATERIALS SPECIFICATION.:
Materials
Characteristic |
NR |
NBR |
CR |
SBR |
EPDM |
MUQ |
VITON |
Hardness(Shore A) |
25~99 |
25~95 |
20~95 |
30~90 |
25~95 |
18~80 |
60~90 |
Weather resistance |
▲ |
× |
● |
▲ |
★ |
★ |
★ |
Ozone resistance |
× |
× |
● |
× |
★ |
★ |
★ |
Heat resistance |
× |
▲ |
● |
▲ |
★ |
★ |
★ |
Low-tempt. Resistance |
● |
▲ |
● |
▲ |
★ |
★ |
★ |
Acid resistance |
■ |
● |
● |
■ |
★ |
★ |
★ |
Alkali resistance |
■ |
● |
● |
▲ |
★ |
● |
★ |
Mineral oil resistance |
× |
● |
● |
× |
× |
× |
★ |
Vegetable oil resistance |
▲ |
★ |
● |
▲ |
● |
● |
★ |
Abrasion resistance |
★ |
★ |
● |
★ |
● |
× |
▲ |
Tear resistance |
★ |
● |
● |
▲ |
▲ |
▲ |
▲ |
Strength characteristic |
★ |
● |
● |
■ |
● |
× |
× |
Compression |
★ |
● |
● |
● |
● |
● |
● |
Impact resistance |
★ |
● |
● |
★ |
● |
▲ |
▲ |
Gas-seal characteristic |
▲ |
▲ |
● |
▲ |
▲ |
× |
× |
Flame resistance |
× |
▲ |
● |
× |
× |
▲ |
★ |
Electrical characteristic |
● |
× |
× |
▲ |
★ |
★ |
★ |
Color stability |
● |
■ |
× |
● |
★ |
★ |
● |
Tackiness |
★ |
● |
● |
▲ |
▲ |
● |
★ |
Process-ability |
★ |
● |
▲ |
● |
● |
★ |
● |
Water resistance |
★ |
● |
● |
● |
★ |
● |
★ |
★Excellent ●Good ■Suitable ▲Poor ×Unacceptable |
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