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Chemical Compatibility: FKM (Fluorocarbon/Viton)
Hydrocyanic Acid to Hydrogen Fluoride
Chemical compatibility ratings for elastomers and engineering materials exposed to various chemicals — resistance grades from A (excellent) to D (not recommended), plus X (insufficient data)
| material | chemical | parker compound code | rating | rating code | temp max C (degC) | temp max F (degF) | temp min C (degC) | temp min F (degF) |
|---|---|---|---|---|---|---|---|---|
| FKM (Fluorocarbon/Viton) | Hydrocyanic Acid | E0540-80 | A-Excellent | A | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Hydrofluoric Acid (Anhydrous) | V3819-75 | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Hydrofluoric Acid (conc.) Cold | V3819-75 | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Hydrofluoric Acid (conc.) Hot | V3819-75 | C-Fair | C | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Hydrofluorosilicic Acid | E0540-80 | A-Excellent | A | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Hydrogen Bromide (Anhydrous) | V3819-75 | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Hydrogen Chloride (Anhydrous) | V3819-75 | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Hydrogen Chloride gas | E0540-80 | A-Excellent | A | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Hydrogen Cyanide | V3819-75 | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Hydrogen Fluoride | V3819-75 | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
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