Skip to main content
logo

Request Quote

Contact

Chemical Compatibility

Sodium Thiocyanate Compatibility with O-Ring Materials

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

Back to Chemical Compatibility Checker
MaterialCodeTrade NamesRating
Nitrile (Buna-N)NBRBuna-N, HycarC
Hydrogenated NitrileHNBRTherban, ZetpolC
Fluorocarbon (Viton)FKMViton, FluorelA
PerfluoroelastomerFFKMKalrez, ChemrazA
Ethylene PropyleneEPDMNordel, VistalonA
SiliconeVMQSilastic, ElastosilB
FluorosiliconeFVMQFluorosilicone LS, Silastic FSRA
Neoprene (Chloroprene)CRNeoprene, BayprenA
Natural RubberNRNR, Isoprene (IR)A
Styrene ButadieneSBRBuna-S, GR-SA
ButylIIRButyl, Exxon ButylA
PolyurethaneAUAdiprene, VibrathaneD
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 Sodium Thiocyanate

The table above rates every common O-ring elastomer for service in Sodium Thiocyanate 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 Sodium Thiocyanate, the strongest candidates are Fluorocarbon (Viton), Perfluoroelastomer, Ethylene Propylene, Silicone, Fluorosilicone, 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.