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Chemical Compatibility: FKM (Fluorocarbon/Viton)
Pyridine Oil to Pyrosulfuric Acid
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) | Pyridine Oil | E0540-80 | D-Not Recommended | D | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Pyridine Sulfate | E0540-80 | C-Fair | C | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Pyridine Sulfonic Acid | E0540-80 | C-Fair | C | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Pyrogallol (Pyrogallic Acid) | V1164-75 | A-Excellent | A | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Pyrogard 42, 43, 55 | E0540-80 | A-Excellent | A | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Pyrogard 53, Mobil Phosphate Ester | E0540-80 | A-Excellent | A | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Pyrogard D, Mobil Water-in-Oil Emulsion | N0674-70 | D-Not Recommended | D | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Pyroligneous Acid | E0540-80 | D-Not Recommended | D | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Pyrolube | V1164-75 | A-Excellent | A | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Pyrosulfuric Acid | E0540-80 | C-Fair | C | 205 | 400 | -26 | -15 |
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