Generic Elastomeric Properties
Industries Served:
Common o-ring compounds for high temperature, water resistance, ozone resistance and gas impemeability. Many other statistics for o-rings.
Generic Elastomeric Properties
| Physical Property | Butyl | Ethylene Propylene EPDM | Flouro-carbon FKM | Natural Rubber NR | Neoprene CR | Nitrile Butadiene NBR | Silicone VMQ | Styrene Butadiene SBR | Urethane |
| Polymer Specific Gravity |
0.9
|
0.88
|
1.4-1.9
|
0.93
|
1.23
|
1
|
0.95
|
0.93
|
1.05
|
| Durometer Limits |
30-100
|
40-90
|
65-90
|
30-100
|
20-90
|
40-100
|
25-80
|
30-100
|
30-100
|
| Tensile Strength, PSI |
0-1900
|
0-2400
|
0-2000
|
0-3200
|
0-3000
|
0-3000
|
0-1450
|
0-3000
|
0-8000
|
| Elongation % |
0-625%
|
0-500%
|
0-300%
|
0-700%
|
0-800%
|
0-700%
|
0-700%
|
0-500%
|
0-600%
|
| Tear Resistance |
Fair
|
Fair
|
Fair
|
Very Good
|
Good
|
Good
|
Good
|
Good
|
Very Good
|
| Weather Resistance |
Very Good
|
Very Good
|
Very Good
|
Fair
|
Very Good
|
Fair
|
Very Good
|
Fair
|
Very Good
|
| Ozone Resistance |
Very Good
|
Very Good
|
Very Good
|
Poor
|
Very Good
|
Poor
|
Very Good
|
Poor
|
Very Good
|
| Water Resistance |
Very Good
|
Very Good
|
Good
|
Very Good
|
Good
|
Very Good
|
Good
|
Very Good
|
Fair
|
| Oil & Gasoline Resistance |
Poor
|
Poor
|
Very Good
|
Poor
|
Good
|
Very Good
|
Poor
|
Poor
|
Very Good
|
| Solvent Resistance: Aliphatic Hydrocarbons |
Poor
|
Poor
|
Very Good
|
Poor
|
Good
|
Very Good
|
Poor
|
Poor
|
Very Good
|
| Solvent Resistance: Aromatic Hydrocarbons |
Poor
|
Fair
|
Very Good
|
Poor
|
Poor
|
Good
|
Poor
|
Poor
|
Fair
|
| Brittle Point (°F) |
-80
|
-80
|
-60
|
-80
|
-50
|
-65
|
-180
|
-80
|
-60
|
| Stiffening Point (°F) (avg) |
-25
|
-35
|
-15
|
-40
|
-10
|
-10
|
-150
|
-35
|
-20
|
| Compression Set |
Fair
|
Fair
|
Good
|
Good
|
Fair
|
Good
|
Very Good
|
Good
|
Very Good
|
| Temp Resistance: | |||||||||
| To 212°F |
Very Good
|
Very Good
|
Very Good
|
Fair
|
Good
|
Good
|
Very Good
|
Good
|
Good
|
| To 350°F |
Good
|
Good
|
Very Good
|
Poor
|
Poor
|
Poor
|
Very Good
|
Poor
|
Poor
|
| To 450°F |
Poor
|
Poor
|
Very Good
|
Poor
|
Poor
|
Poor
|
Very Good
|
Poor
|
Poor
|
| Gas Impermeability |
Very Good
|
Good
|
Very Good
|
Good
|
Good
|
Good
|
Fair
|
Fair
|
Good
|
| Abrasion Resistance |
Very Good
|
Good
|
Fair
|
Very Good
|
Good
|
Good
|
Fair
|
Very Good
|
Very Good
|
| Flex Resistance |
Good
|
Good
|
Good
|
Very Good
|
Good
|
Good
|
Very Good
|
Good
|
Good
|
This information gives typical properties and is not to be taken as a warranty or any representation for which we assume legal responsibility, nor as permission or recommendation. It is offered soley for your consideration,investigation, and verification.
Viton®and Kalrez® are registered trademarks of DuPont Performance Elastomers.
Viton®and Kalrez® are registered trademarks of DuPont Performance Elastomers.