| Material |
. |
General Properties |
. |
Common Applications |
| |
| Buna-N(Nitrile / NBR)70 Durometer Black |
|
Good resistance to petroleum, hydrocarbons, fuels.Widely used with most oils, hydraulic fluids, alcohol.
Poor resistance to sunlight, weathering and ozone.Many compound variations for specific applications.
The least expensive most readily available material.
Basic temperature range:-40 F to +250 F*
|
|
Petroleum Oil Seals Hydraulic Fluid Seals
Water / Greases
Transmission Fluid Seals |
|
Viton?/small>
(Fluorocarbon)75 Durometer Black
|
|
Excellent temperature and chemical resistance.Excellent mechanical and physical properties.
Low compression set and low gas permeability.
Not for use with Acetone, Skydrol, or ethyl Acetate.
Basic temperature range:-20 F to +400 F*
|
|
Vacuum Seals Many Acids and Fuels Heat ResistanceMany Chemicals
Many Solvents |
|
| Silicone70 Durometer Red/Orange |
|
Broad temperature range. Odorless / non-toxic.Resistance to sun and ozone. Fungus resistance.
Poor tear and abrasion strength.
Poor resistance to oils.
Basic temperature range:-80 F to +400 F*
|
|
Dry heat Alcohol /OxygenElectrical / MedicalLow Temperature |
|
EPDM / EPR
(Ethylene Propylene)70 Durometer Black
|
|
Resistance to sunlight, weathering and ozone.Poor resistance to petroleum oils and fuel.
Good heat and compression set resistance.
Basic temperature range:-65 F to +250 F*
|
|
Steam / Hot waterHydraulic / Skydrol
Some ChemicalsAuto Brake SystemsAlcohol / Greases |
|
|
|
Viton?/small> ETP(Viton?/small> Extreme)
|
|
Superior chemical resistance vs. standard Viton?/small>.Other properties similar to standard Viton
For use between standard Viton and
KalrezBasic temperature range: -5 F to +400 F*
|
|
Chemical Resistance
For use between standard Viton?/small> and Kalrez?/small>
|
|
Chemraz
Simriz
Kalrez
(Perfluoroelastomer) |
|
High temperature and chemical resistance.
Excellent resistance to chemicals.
Excellent outgassing performance in vacuums.
Low compression set.
Various compounds for specific applications.
Basic temperature range: -10 F to +600 F*
Simriz = performance and savings.
|
|
Click for Specific Compound Info:
ChemrazSimriz
Kalrez
|
|
| EncapsulatedFEP or PFA |
|
Common core materials:
Silicone, Viton, SS Spring
Chemical resistance of FEP/PFA with compression set resistant core.
Basic temperature range: Depends on core material.
|
|
Chemical resistance of FEP/PFA with compression set resistant core. |
|
| PTFE?/small> |
|
Excellent temperature range.
Various chemical and fuel resistance.
Low coefficient of friction.
Non-elastic.
Basic temperature range:-250 F to +450 F*
|
|
Temperature Range
Chemicals / Fuels
Non-elastic
|
|
| Neoprene(Chloroprene)
|
|
Good resistance to petroleum oils.
Low compression set and good abrasion strength..
Good resistance to weathering, sunlight and ozone.
Basic temperature range: -40 F to +225 F*
|
|
Refrigeration Seals
Freon / Air ConditioningMotor MountsEngine Coolants
|
|
| Fluorosilicone
|
|
Wide range of fluid and chemical resistance.Large temperature range.
A blend of Viton?/small> and Silicone.
Basic temperature range:-80 F to +350 F*
|
|
Aircraft fuel systems Jet Fuel / GasolinePetroleum OilsSynthetic Jet Oil |
|
| Urethane(polyurethane)
|
|
Available in High and Low GradesExcellent wear/abrasion and extrusion resistance.
Poor compression set and chemical resistance.
Basic temperature range:-65 F to +225 F*
|
|
High Pressure Hydraulics Drive Belts |
