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Chemical Compatibility

Trichlorofluoromethane Compatibility with O-Ring Materials

See how Nitrile, Viton (FKM), EPDM, FFKM, silicone and other seal materials rate against Trichlorofluoromethane, with an A–D chemical resistance scale.

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MaterialCodeTrade NamesRating
Nitrile (Buna-N)NBRBuna-N, HycarB
Hydrogenated NitrileHNBRTherban, ZetpolX
Fluorocarbon (Viton)FKMViton, FluorelB
PerfluoroelastomerFFKMKalrez, ChemrazB
Ethylene PropyleneEPDMNordel, VistalonD
SiliconeVMQSilastic, ElastosilD
FluorosiliconeFVMQFluorosilicone LS, Silastic FSRB
Neoprene (Chloroprene)CRNeoprene, BayprenX
Natural RubberNRNR, Isoprene (IR)X
Styrene ButadieneSBRBuna-S, GR-SX
ButylIIRButyl, Exxon ButylX
PolyurethaneAUAdiprene, VibrathaneX
Aflas (TFE/P)FEPMAflas, FEPMD
ABCDX

Guideline only. Values and ratings are representative at ambient conditions and are not a warranty of performance. Actual results vary with temperature, pressure, concentration and exposure time. Validate for your specific application — our engineers can help.

Choosing a seal material for Trichlorofluoromethane

The table above rates every common O-ring elastomer for service in Trichlorofluoromethane on an A–D scale. A is Excellent, B is Good, C is Fair (test before relying on it), and D is Not Recommended. An X indicates insufficient published data.

For Trichlorofluoromethane, the strongest candidates are Nitrile (Buna-N), Fluorocarbon (Viton), Perfluoroelastomer, Fluorosilicone. These ratings are representative at ambient conditions (~20°C). Compatibility shifts with temperature, concentration, pressure and exposure time, so always validate the material against your real operating envelope before committing to a design.