|
Material
|
Recommended
Use
|
Not Recommended For
|
Mechanical Properties
|
|
Buna-N (Nitrile)
Temp
Range:
-35°F to 250°F
|
Silicone Greases & Oils;
Petroleum Oils &
Fluids;
Ethylene Glycol Fluids;
Water
|
Keytones; Halogenated
Hydrocarbons;Brake Fluids;
Strong Acids; Sunlight, Ozone,
and/or Weather Exposure
|
Good:
Wear, Compression Set,
and Permeation Resistances;
Good Short-term Resilience
|
|
EPDM
(Ethylene
Propylene)
Temp Range:
-60°F to 250°F
|
Sunlight, Ozone, and/or Weather
Exposure;
Auto/Aircraft Brake Fluids;
Hot Water/Steam; Some Acids/Bases;
Keytones;
Alcohols; Plumbing
|
Petroleum Oils; Fuels
|
Good: Wear, Compression Set,
and
Permeation Resistances;
Moderate: Short-term Resilience
|
|
Fluorosilicone
Temp
Range:
-80°F to 450°F
|
JetFuel; Dry Heat; Wide Temp
Range; Some Petroleum
Oils;
Chlorinated Solvents
|
Keytones; Some Acids; Phosphate
Esters; Auto/Aircraft
Brake
Fluids; Amines
|
Poor: Water and Permeation
Resistances; Mod:
Compression
Set andShort-Term Resilience
|
|
Neoprene®
(Chloroprene)
Temp
Range:
-35°F to 250°F
|
Refrigerants; Ammonia; Some
Petroleum Oils; Dilute
Acids;
Silicone Ester Lubricants
|
Keytones; Gasoline;
Auto/Aircraft Brake
Fluids
|
Good: Wear and Permeation
Resistances;
Moderate: Short-term
Resilience
and Compression Set Resistance
|
|
ParFluor®, Kalrez®
(Perfluoroelastomers)
Temp
Range:
-10°F to 615°F
|
Low Out Gassing; Chlorine Wet/Dry;
Petroleum Oil;
Chlorinated
Hydrocarbons; High Temp Resistance;
Excellent Chemical
Resistance
|
Petroleum Oils; Fuels
|
Good: Wear, Compression,
and PermeationResistances;
Moderate: Short-term Resilience
|
|
Silicone
Temp Range:
-65°F
to 450°F
|
Dry Heat; Wide Temp Range; Ozone;
Sunlight; Weather; Odorless
and
Non-Toxic
|
Keytones; Acids; Silicone Oils;
Brake Fluids
|
Poor:
Wear Resist. & Short-term
Resilience; Excellent: Comp. Set
&
Permeation Resistances
|
|
Teflon®
Temp Range:
-250°F to 450°F
|
Chemical
and Fuel Resistance;
Low Coefficient of Friction
|
Non-eleastic
|
Good:
Wear Resistance;
Low Coefficient of Friction
|
|
Urethane
Temp Range:
-65°F
to 200°F
|
Drive Belts; Some Petroleum Oils;
Some HydrocarbonFuels;
Oxygen/Ozone
|
Keytones; Acids; Auto/Aircraft
BrakeFluids; Chlorinated
Hydrocarbons; Water
|
Poor: Comp. Set Risist.
Excellent:
Wear Resist. & Short-
Term Resilience
|
|
Viton®
Temp Range:
-15°F to
400°F
|
Vacuum; Most Acids/Chemicals;
Halogenated Hydrocarbons;
Di-ester
Lubricants; Petroleum
Oils/Fuels; Silicone Oils/Fluids
|
Keytone; BrakeFluids;
Amines; Acetone, Skydrol, Ethyl
Acetate; Low Molecular Esters
& Ethers; Hot Water and Steam
|
Good: Wear Resistance;
Moderate:
Short-term Resilience;
Excellent: Compression Set and
Permeation Resistances
|