Very Good = 1 |
Good = 2 |
Average = 3 |
Poor = 4 |
Temperature in °F |
Basic Property |
NBR |
HNBR |
EPDM |
FKM |
CR |
ACM |
AEM |
SBR |
AU/EU |
VMQ |
FVMQ |
NR |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Economy of Material |
1 |
4 |
2 |
3 |
2 |
3 |
4 |
1 |
3 |
3 |
4 |
1 |
Compression Set Resistance |
1 |
1 |
1 |
1 |
2 |
4 |
2 |
2 |
3 |
2 |
2 |
1 |
Resilience (Rebound) |
2 |
2 |
2 |
2 |
2 |
3 |
2 |
2 |
2 |
2 |
2 |
1 |
Tear Strength |
2 |
1 |
2 |
2 |
2 |
3 |
2 |
3 |
2 |
4 |
3 |
1 |
Heat Aging Resistance |
3 |
2 |
2 |
1 |
3 |
1 |
1 |
3 |
1 |
1 |
1 |
3 |
Ozone Resistance |
4 |
2 |
2 |
1 |
2 |
2 |
1 |
4 |
1 |
1 |
1 |
4 |
Resistance to Oil & Grease |
2 |
2 |
4 |
1 |
2 |
1 |
3 |
4 |
2 |
3 |
1 |
4 |
Fuel Resistance |
4 |
3 |
4 |
2 |
4 |
1 |
4 |
4 |
3 |
4 |
2 |
4 |
Water Swell Resistance |
2 |
2 |
1 |
2 |
3 |
4 |
2 |
1 |
4 |
1 |
1 |
1 |
Gas Impermeability |
2 |
2 |
3 |
2 |
2 |
3 |
2 |
3 |
2 |
4 |
4 |
3 |
Dynamic Service / Abrasion Res. |
2 |
2 |
2 |
3 |
2 |
2 |
2 |
1 |
1 |
4 |
4 |
1 |
High Temperature - Standard |
212 |
300 |
300 |
390 |
250 |
300 |
300 |
212 |
175 |
450 |
400 |
220 |
High Temperature - Special |
250 |
- |
- |
- |
- |
- |
- |
- |
- |
480 |
- |
- |
Low Temperature - Standard |
-22 |
- 22 |
-60 |
5 |
-40 |
-60 |
-40 |
-50 |
-60 |
-75 |
-75 |
-60 |
Low Temperature - Special |
-60 |
-40 |
- |
-30 |
- |
- |
- |
- |
- |
- |
- |
- |
Due to the number of interacting forces, it is STRONGLY RECOMMENDED THAT YOUR ELASTOMER SELECTION BE RIGOROUSLY TESTED IN THE ACTUAL APPLICATION, performance assumptions must be checked so that you are certain that all variables have been carefully considered.