| Material |
General Properties |
Common Applications |
| Advantages |
Limitations |
Temp Range |
| Cork & Neoprene |
 Very fine cork particles have been added to
create a homogeneous material with great compressibility combined with the
resiliency of neoprene
Excellent material for very narrow flange gaskets and for low bolt load
applications |
Info not available |
Info not available currently |
Info not available currently |
| Neoprene |
Good Resistance to Abrasion & Flex Cracking
Good Resistance to Refrigerants & Ammonia
Very Good Resistance to Ozone & Sunlight
Good Resistance to Alkalis & Acids
Moderate Oil & Gasoline Resistance
Good Inherent Flame Resistance |
Very Poor w/Polar Solvents (MEK, Acetone, Esters) Poor to
Fair Resistance to
Oxygenated Solvents Poor to Fair Resistance to
Aromatic Solvents
Limited Low Temperature
Fair Electrical Resistance
Fair Dynamic Properties |
-40o C to 121o C |
Refrigeration seals
Freon / Air conditioning
Motor mounts
Engine coolants |
| Buna-N (Nitrilite/NBR) |
Superior Resistance to Petroleum-Based Hydraulic Fluids
Good Resistance to Hydrocarbon Solvents
Excellent Cold Water Resistant Properties
Good Resistance to Dilute Alkalis & Acids
Wide Range of Service Temperatures
Very Good Oil & Gasoline Resistance
Good Abrasion Properties |
Not Recommended for Chlorinated Hydrocarbons
Not Recommended for Glycol Based Brake Fluids
Not Recommended for Phosphate Ester Fluids
Poor Resistance to Oxygenated Solvents
Inferior Resistance to Ozone & Sunlight
Not Recommended for Strong Acids |
-34o C to 121o C |
Petroleum oil seals
Hydraulic fluid seals
Water / Greases
Transmission fluid seals |
| Rubber (Red) |
Remains pliable under service conditions
Has low flow under bolting pressures
Does not readily creep or blow out under normal temperatures or pressures |
Info not available currently |
-40° C to 121°C |
Use against hot or cold water (under 50 psi)
Use against air and low pressure saturated steam (under 50 psi) |
| Silicone |
Excellent Ozone, Sunlight and Oxidation Resistance
Outstanding Resistance to High Temperature
Excellent Low Temperature Flexibility
Very Good Electrical Insulation
Superior Color Stability
Low Compression Set |
Not for Super Heated Steam (Over 250 Degrees F)
Poor Abrasion, Tear, and Cut
Growth Resistance
Inferior Oil, Gasoline and Solvent Resistance
Poor Resistance to Alkalis and Acids
Generally Low Tensile Strength
Not for Aromatic Mineral Oil |
-54o C to 204o C |
Dry heat
Alcohol / Oxygen
Electrical / Medical
Low temperature |
| Viton |
Very Good Resistance to Oxygen, Ozone & Sunlight
Outstanding Resistance to High Heat (Up to 400 F)
Excellent Resistance to Hydraulic Fluids & Grease
Excellent Resistance to Oil, Gasoline, Silicone Oil
Very Good Impermeability to Gases & Vapors
Good Flame Resistance |
Very Little Resistance to Oxygenated Solvents
Very Poor Resistance to Low Temperatures
Fair to Good Water & Steam Resistance
Poor Tear, and Cut Growth Resistance
Fair Adhesion to Fabrics & Metals
Fair Electrical Properties |
-26o C to 204o C |
Vacuum seals
Chemicals / Solvents
High heat
Acids / Fuels |
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