Material

Advantages

Limitations

NITRILE

RUBBER

(NBR)

Good oil and fuel resistance.

Good heat resistance up to 

120℃ in oil.

High tensile strength.

Low swelling in water.

Poor weather and ozone 

resistance.

Poor resistance against polar 

fluids.

Poor resistance against 

chlorinated hydrocarbon.

Poor resistance against 

aromatic fluids　

POLYACRYLATE

RUBBER

(ACM)

Good oil and fuels resistance.

Good heat resistance up to    

150℃ in oil.

Good weather and ozone 

resistance.

Not usable in contact with 

water and water solutions

Limited cold flexibility.

Limited tensile strength and 

tear resistance.

Poor wear resistance.

Poor resistance against polar 

and aromatic and chlorinated 

hydrocarbons.

SILICONE

RUBBER

(MVQ)

Good heat resistance up to 180℃.

Best heat resistance of all 

rubber types.

Excellent low temp.            

Resistance of all rubber types.

Excellent weather and ozone 

resistance.

Poor tensile and tear strength.

Poor wear resistance.

Sensitive to hydrolysis.

Poor resistance against 

aromatic oils and 

oxidized mineral oils.

Poor diffusion resistance.

FLUOROCARBON

RUBBER

(FPM)

Good heat resistance up to 200℃

The resistance against oil and

fuels is better than other types.

The only highly elastic rubber  

which is resistant to aromatic 

and chlorinated hydrocarbons.

Excellent heat resistance.

Excellent weather and ozone  

resistance.

Excellent acid resistance.

Low swelling in water.   　

Limited cold flexibility.

Limited tensile and tear 

strength.

Limited wear resistance.

High compression set in hot 

water.

Poor resistance to polaric 

solvents.