Description
Viton® ETP, or Viton® Extreme, is resistant to the same fluids as high fluorine FKMs such as aliphatic and aromatic hydrocarbons, hydraulic fluids, motor oils, fuels, etc., but is also resistant to strong bases and polar fluids such as potassium hydroxide, ketones, MTBE and complex solvent mixtures. In fact, Viton® ETP has the broadest fluid resistance of any FKM polymer on the market, making it ideal for severe service environments. Although costly, it can frequently be substituted for far more expensive perfluoroelastomers, at a fraction of the cost.
Composition
Viton® ETP (duPont)
Physical Properties*
| |
Excellent |
Good |
Fair |
Poor |
| Abrasion resistance |
|
• |
|
|
| Compression Set |
|
• |
|
|
| Elongation |
|
• |
|
|
| Flame resistance |
|
• |
|
|
| Gas permeability |
• |
|
|
|
| Low temperature flexibility |
|
|
• |
|
| Tear resistance |
|
• |
|
|
| Tensile strength |
|
• |
|
|
Chemical Resistance*
| |
Excellent |
Good |
Fair |
Poor |
| Acetic acid |
|
• |
|
|
| Acetone |
|
• |
|
|
| Amines |
|
|
|
• |
| Butyl acetate |
|
• |
|
|
| Concentrated Bases |
• |
|
|
|
| Ethylene diamine |
|
|
• |
|
| KOH |
• |
|
|
|
| Nitric acids |
• |
|
|
|
| Polar solvents |
• |
|
|
|
| Tetrahydrofuran |
|
|
• |
|
| Tolune |
• |
|
|
|
| Water |
|
|
• |
|
Operating Temperature
-10 to 400 °F
*Excellent, good, fair and poor are intended to serve as general guidelines only. Actual testing in the application environment is always recommended. |
