| COMPOUND | SOG CODE | ADVANTAGES | LIMITATIONS |
|---|---|---|---|
| Nitrile Rubber (NBR) |
N | * Good oil and fuel resistance. * Good heat resistance up to 120oC 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) |
P |
* Good oil and fuels resistance. * Good heat resistance p to 150oC in oil. * Good weater 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 |
S |
* Good heat resistance up to 180oC. * 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. |
| Fluorinated Rubber (FPM) |
V | * Good heat resistance up to 200oC * The resistance against oil and fuels is better than other types. * The only highly elastic rubber whice is resistant to aromatic and chlorinated hydrocarbons. * Excellent heat resistance. * Excellent weather and ozone resistance. * Excellent acid resistance. * Low swelling in water. |
* Limited cold flexibliity. * Limited tensile and tear strength. * Limited wear resistance. * High compression set in hot water. * Poor resistance to polaric solvents. |