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Chemical Compatibility: FKM (Fluorocarbon/Viton)
Freon, 123 (Dichlorotrifluoroethane) to Freon, 152a (Difluoroethane)
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) | Freon, 123 (Dichlorotrifluoroethane) | C0873-70 | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Freon, 124 (Chlorotetrafluoroethane) | C0873-70 | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Freon, 125 (Pentafluoroethane) | V3819-75 | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Freon, 13 (Chlorotrifluoromethane) | C0873-70 | A-Excellent | A | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Freon, 134a (Tetrafluoroethane) | C0873-70 | D-Not Recommended | D | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Freon, 13B1 (Bromotrifluoromethane) | N0674-70 | A-Excellent | A | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Freon, 14 (Tetrafluoromethane) | C0873-70 | A-Excellent | A | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Freon, 141b (Dichlorofluoroethane) | Factory | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Freon, 142b (Chlorotrifluorothane) | V1164-75 | B-Good | B | 205 | 400 | -26 | -15 |
| FKM (Fluorocarbon/Viton) | Freon, 152a (Difluoroethane) | Factory | X-Insufficient Data | X | 205 | 400 | -26 | -15 |
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