| Material |
Recommended Use |
Not Recommended For
|
Mechanical Properties |
| |
|
|
|
Buna-N (Nitrile)
Standard: 70 Durometer Black
Temperature Range: -35ºF to 250ºF
Least Expensive / Readily Available |
Silicone Greases / Oils
Water
Petroleum Oils / Fuels
Ethylene Glycol Fluids |
Ketones (MEK)
Halogenated Hydrocarbons
Auto / Aircraft Brake Fluids
Strong Acids
Sunlight, Ozone, Weathering |
Good Wear Resistance
Good Compression Set Resistance
Good Short-Term Resilience
Good Permeation Resistance |
| |
|
|
|
| Viton® (Fluorocarbon Type A)
Standard: 75 Durometer Black
Temperature Range: -15ºF to 400ºF
|
Vacuum
Most Acids / Chemicals
Halogenated Hydrocarbons
Di-Ester Lubricants
Petroleum Oils / Fuels
Silicone Oils / Greases |
Ketones (MEK)
Auto / Aircraft Brake Fluids
Amines (Ammonia)
Acetone, Skydrol, Ethyl Acetate
Hot Water and Steam
Low Molecular Esters and Ethers |
Good Wear Resistance
Excellent Comp. Set Resistance
Moderate Short-Term Resilience
Excellent Permeation Resistance |
| |
|
|
|
| Silicone
Standard: 70 Durometer Orange
Temperature Range: -65ºF to 450ºF
|
Dry Heat
Wide Temperature Range
Sunlight, Ozone, Weathering
Odorless and Non-Toxic |
Ketones (MEK)
Acids
Silicone Oils
Brake Fluids |
Poor Wear Resistance
Excellent Comp. Set Resistance
Poor Short-Term Resilience
Excellent Permeation Resistance |
| |
|
|
|
| EPDM (Ethylene Propylene)
Standard: 70 Durometer Black
Temperature Range: -60ºF to 250ºF
|
Sunlight, Ozone, Weathering
Hot Water and Steam
Auto / Aircraft Brake Fluids
Some Acids and Bases
Ketones and Alcohols
Plumbing |
Petroleum Oils
Fuels |
Good Wear Resistance
Good Comp. Set Resistance
Moderate Short-Term Resilience
Good Permeation Resistance |
