
Viton™ Fluoroelastomer Sheet Rubber Products
Jump to NavigationWARCO BILTRITE is proud to be a Viton™ brand licensee. All of our Viton™ fluoroelastomer products are manufactured with 100% virgin Viton™ polymer.
Viton™ is the most specified brand of fluoroelastomer for fuel system seals, expansion joints and gaskets.
Fluoroelastomers were originally introduced over 50 years ago to meet the needs of the aerospace industry for a high-performance elastomer. Since then, the use of fluoroelastomers has spread quickly to many other industries, including the automotive, oil, fluid power, appliance and chemical industries and has developed a reputation for its outstanding performance in very hot and extremely corrosive environments.
Fluoroelastomers are particularly valued for their excellent heat stability (200°C) and resistance to aggressive fuels and chemicals.
Miscellaneous Charts
DuPont Gasket Codes:
DuPont Engineering Standards U2A and SU2A
DuPont Code |
Viton™ Type |
Compound Number |
Durometer Hardness Shore A ± 5 |
Tensile PSI |
Ultimate Elongation Percent |
Temperature Range |
---|---|---|---|---|---|---|
S21/G21 | A | 60-F-3096 | 60 | 1500 | 200 | -20°F to +450°F |
S22/G22 | A | 75-F-3097 | 75 | 1500 | 180 | -20°F to +450°F |
S23/G23 | B | 60-F-4126 | 60 | 1500 | 200 | -20°F to +450°F |
S24/G24 | B | 75-F-4127 | 75 | 1600 | 200 | -20°F to +450°F |
Permeation Rates for Selected Elastomers
Average permeation for ASTM Standard (g x mm)(mm2 x days)
Material | Fuel C at 23°C |
90% Fuel C, 10% Ethanol |
85% Fuel C, 15% Methanol |
Taluene |
---|---|---|---|---|
NBR (33% ACN) | 669 | 1028 | 1118 | |
HNBR (44% ACN) | 230 | 553 | 828 | |
Fluorosilicone | 455 | 584 | 635 | |
Nylon 12* | 5.5 | 24 | 83 | |
Viton™ GLT-S | 2.6 | 14 | 60 | |
Viton™ AL | 0.8 | 6.7 | 32 | |
Viton™ A | 0.8 | 7.5 | 36 | 49 |
Viton™ GFLT-S | 1.8 | 6.5 | 14 | |
Viton™ B | 0.7 | 4.1 | 12 | |
Viton™ GF-S | 0.7 | 1.1 | 3.0 |
*Mathematically normalized to 1 mm thickness using data from tests described in ASTM E96-53T.
Heat Resistance Chart of Specialty Elastomers:
ASTM D 2000/SAE J200

Relative Chemical Compatibility and Mechanical Properties
for Viton™ Fluoroelastomers
(KEY: 1 = Excellent 2 = Fair to Good 3 = Poor 4 = Not Recommended)
Chemical Environment | Viton™ General Use Types |
Viton™ Specialty Types |
||||||
---|---|---|---|---|---|---|---|---|
A | B | F | GBL-S | GF-S | GLT-S | GFLT-S | ETP-S | |
Automotive and aviation fuels | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Automotive fuels oxygenated with MEOH, ETIH, MTBE, etc. | 4 | 2 | 1 | 2 | 1 | 4 | 1 | 1 |
Engine lubricating oil, SE abd SF | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Engine lubricating oil, SG abd SH | 3 | 2 | 2 | 1 | 1 | 2 | 1 | 1 |
Alphatic hydrocarbon process fluids, chemicals | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Aromatic fluids, steam mineral acids | 2 | 2 | 1 | 1 | 1 | 2 | 1 | 1 |
Aqueous fluids, steam mineral acids | 3 | 2 | 2 | 1 | 1 | 1 | 1 | 1 |
Strong base, high pH, caustic, aminos | 4 | 4 | 4 | 2 | 2 | 2 | 2 | 1 |
Low molecular weight carbonyls 100% concentration (MTBB, MBK, MIBK, etc.) | 4 | 4 | 4 | 4 | 4 | 4 | 4 | 1 |
Resistance to compression set | 1 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
Low-temperature flexibility | 2 | 2 | 3 | 2 | 3 | 1 | 1 | 2 |
(KEY: 1 = Excellent 2 = Fair to Good 3 = Poor 4 = Not Recommended)
Our rubber products are a proprietary blend of various polymers formulated to meet stated physicals and specifications. The named product polymer is not necessarily the primary polymer representing the highest percentage of the polymer blend. Determination of the suitability of the goods for the uses and applications contemplated by Buyer and others shall be the sole responsibility of the Buyer or user. No guaranty is given with respect to length of service on any particular application. Suggestions or recommendations made by Seller in its product literature concerning uses or applications of the goods are believed to be reliable, but Seller makes no warranty or guaranty of results to be obtained since the conditions of the use and application by Buyer and others are beyond Seller’s control.
View complete Terms & conditions of Sale for suitability of use and formulations >