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Chemical Compatibility

Hydraulic Fluids, Water0in0oil Emulsions Hfb Compatibility with O-Ring Materials

See how Nitrile, Viton (FKM), EPDM, FFKM, silicone and other seal materials rate against Hydraulic Fluids, Water0in0oil Emulsions Hfb, with an A–D chemical resistance scale.

Back to Chemical Compatibility Checker
MaterialCodeTrade NamesRating
Nitrile (Buna-N)NBRBuna-N, HycarX
Hydrogenated NitrileHNBRTherban, ZetpolX
Fluorocarbon (Viton)FKMViton, FluorelX
PerfluoroelastomerFFKMKalrez, ChemrazA
Ethylene PropyleneEPDMNordel, VistalonD
SiliconeVMQSilastic, ElastosilX
FluorosiliconeFVMQFluorosilicone LS, Silastic FSRX
Neoprene (Chloroprene)CRNeoprene, BayprenB
Natural RubberNRNR, Isoprene (IR)D
Styrene ButadieneSBRBuna-S, GR-SD
ButylIIRButyl, Exxon ButylD
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 Hydraulic Fluids, Water0in0oil Emulsions Hfb

The table above rates every common O-ring elastomer for service in Hydraulic Fluids, Water0in0oil Emulsions Hfb 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 Hydraulic Fluids, Water0in0oil Emulsions Hfb, the strongest candidates are Perfluoroelastomer, Neoprene (Chloroprene). 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.