| TEMPERATURE |
O-RING
MATERIAL |
-55 to 125 C
-67 to 257 F |
Nitrile
(Buna-N)
Most commonly used O-Ring material type. Resistant
to many hydrocarbon fluids and petroleum oils, greases,
and hydraulic fluids. Resistant to water, alcohols
and many chemicals. Not suitable for ketones, esters,
aldehydes and chlorinated or nitro-hydrocarbons. |
-115 to 250 C
-175 to 482 F |
Silicone
Suitable for use in air, high aniline point petroleum
oils, ozone and many oxidizing chemicals. Not recommended
for most solvents, low aniline point petroleum oils,
or concentrated acids. |
-55 to 150 C
-67 to 302 F |
Neoprene
Resistant to many chemicals and acids as well as ozone.
Moderate resistance to petroleum oils and good resistance
to commonly used refrigeration fluids. Not resistant
to strong oxidizing acids, ketones, esters or aromatic
or chlorinated hydrocarbons. |
-149 to 232 C
-300 to 450 F |
Teflon®
(TFE)
For use where total solvent to chemical resistance,
or extremely high or low temperature resistance, is
desired in installations similar to those in which
elastomeric materials are customarily used, with the
exception of reciprocation motion. Typical applications:
gaskets, jam seals, valve discs or seats, and lubricant
or weather seals on slow rotary motion. |
-40 to 225 C
-40 to 437 F |
Viton®
Resistant to aliphatic, aromatic and halogenated hydrocarbons
as well as acids and animal and vegetable oils. Not
recommended for ketones, low molecular weight esters
or nitro-hydrocarbons. |
-55 to 150 C
-67 to 320 F |
Ethylene-Propylene
(EPR-EPDM)
Resistant to animal and vegetable oils, ketones, ozone,
and oxidizing chemicals. Not resistant to petroleum
oils, fluids or fuels, or aromatic hydrocarbons. |
-55 to 100 C
-67 to 212 F |
Polyurethane
(Urethane)
Resistant to ozone, fats, petroleum oils and fluids.
Outstanding abrasion resistance. Not suitable for
concentrated acids or ketones, esters or chlorinated
hydrocarbons. |
