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Chemical Compatibility

Fc 502, F22 and F316 Compatibility with O-Ring Materials

See how Nitrile, Viton (FKM), EPDM, FFKM, silicone and other seal materials rate against Fc 502, F22 and F316, with an A–D chemical resistance scale.

MaterialCodeTrade NamesRating
Nitrile (Buna-N)NBRBuna-N, HycarB
Hydrogenated NitrileHNBRTherban, ZetpolB
Fluorocarbon (Viton)FKMViton, FluorelB
PerfluoroelastomerFFKMKalrez, ChemrazB
Ethylene PropyleneEPDMNordel, VistalonA
SiliconeVMQSilastic, ElastosilX
FluorosiliconeFVMQFluorosilicone LS, Silastic FSRX
Neoprene (Chloroprene)CRNeoprene, BayprenA
Natural RubberNRNR, Isoprene (IR)A
Styrene ButadieneSBRBuna-S, GR-SA
ButylIIRButyl, Exxon ButylA
PolyurethaneAUAdiprene, VibrathaneX
Aflas (TFE/P)FEPMAflas, FEPMX
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 Fc 502, F22 and F316

The table above rates every common O-ring elastomer for service in Fc 502, F22 and F316 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 Fc 502, F22 and F316, the strongest candidates are Nitrile (Buna-N), Hydrogenated Nitrile, Fluorocarbon (Viton), Perfluoroelastomer, Ethylene Propylene, Neoprene (Chloroprene), Natural Rubber, Styrene Butadiene, Butyl. 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.