NITRILE (NBR)

Resistant to water, air, inert gases, acid salt solutions and mineral based fluids. Low temperature resistance, is adequate for most applications. Not suitable for ester based synthetic lubricants.
Best general purpose sealing polymer with excellent sealing and resilient properties.

TEMPERATURE RANGE: -40°C to +130°C. SUBJECT TO APPLICATION.

VITON ^® (FKM)

Resistant to air and oxygen, ester based synthetic lubricants, hydraulic oils, fuels with high aromatic contents, inorganic solvents, detergents, natural gas, petroleum products and many other chemicals.
Good high temperature capability. Limited low temperature use.

TEMPERATURE RANGE: -15°C to +200°C. SUBJECT TO APPLICATION.

NEOPRENE

Resistant to select refrigerant gases, air, oxygen and gases. Fair resistance to mineral oils.

TEMPERATURE RANGE: -40°C to +100°C. SUBJECT TO APPLICATION.

ETHYLENE PROPYLENE

Good resistance to water and steam. Good performance in castor and some phosphate ester based fluids. Good low and high temperature capabilities. Good general chemical resistance. It should never be used in contact with mineral based fluids or di-ester lubricants. Ideal for boiling water and steam.

TEMPERATURE RANGE: -45°C to +140°C. SUBJECT TO APPLICATION.

PERFLUOROELASTOMER (FFKM)

Also known as Perlast, Kalrez or Isolast. The most chemically resistant elastomer available. Good high & low temperature capability. Good resistance to refrigerant gases, air, oxygen & gases. Good for organic & inorganic oxides, acids, alkalis, amines & esters.

TEMPERATURE RANGE: -30°C to +200°C. SUBJECT TO APPLICATION.

PTFE

Excellent resistance to almost all chemicals including acids, bases, oil & steam. Very tough and abrasion resistant. Not easily compressed and therefore may not create a seal as easily as elastomers.

TEMPERATURE RANGE: -196°C to +50°C. SUBJECT TO APPLICATION.

FOR SPECIFIC APPLICATIONS AND OTHER SEAL MATERIALS CONSULT SEETRU LIMITED.

Notes: Viton is a registered trademark of DuPont Performance Elastomers L.L.C..