Material/ Material

Material

O-Ring Materials-SI,VMQ

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Rubber type
(ASTM Abbreviation )
Silicone Rubber
SI, VMQ
Chemical structure Silicone main chain from silicon
(-si-o-si) combined
Main feature Heat-resistant, cold, non-toxic, with good electrical insulation properties, not resistant to oil, ozone and solvents.
Pure rubber properties proportion
Muni viscosity ML1+ (100℃)
0.95 ∼ 0.98
Liquid
Physical properties of synthetic rubber Possible JIS hardness range
General temperature range(℃) 
Special temperature range(℃)
Tensile strength (kg/cm2)
Elongation (%)
Anti-elastic
Cracking
Wear resistance
Bending resistance
30 ∼ 80 
-40 ∼ 200
-70 ∼ 300
40 ∼ 100
500 ∼ 50

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Various properties of synthetic rubber lubricating oil Engine oil
Gear Oil
Motor oil
Shaft lubricant
Refrigeration oil
Butter
Lithium oil
Oyster sauce







X
Working oil Pot shaft oil
Oil + Water emulsion system
Water + Glycol
Phosphate ester
Si
Brake Fluid
Gear oil




X

Fuel oil Light oil、kerosene
Heavy oil
Gasoline
X
X
X
Water Water、Warm water
Water vapor、Hot water
Antifreeze water
Water cutting oil



Drug

Hydrochloric acid 20%
Sulfuric acid 30%
Nitric acid 10%
Caustic soda 30%
Benzene
Trichloroethylene
Alcohol
Vinyl glycerol
Liquid fat
Alcohol
Ether
Ketone (MEK)
Acetic acid、Ethyl ester




X
X
X


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Gas LPG
Urban gas
Ozone
Freon 12
Freon 22
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X
X
Other

Food Sanitation Law
Vacuum、Atmosphere 10mm kg 
10-4 ~ 10-9



 
The main purpose Use electrical, electronic, medical, food and other seals.
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