Gaskets made of Viton® resist high temperatures, aggressive fuels, and compression set. Interstate is a material partner of DuPont™ and die cuts gaskets made of this proprietary fluoroelastomer.
Gaskets made of Viton® resist high temperatures, oils, and chemicals while retaining their mechanical properties*. Interstate Specialty Products die cuts sheets and rolls of Viton®, a proprietary material from DuPont Performance Elastomers, into gaskets, seals, and O-rings.** Interstate also offers digital knife cutting and can apply pressure-sensitive adhesives (PSAs) to create rubber gaskets that are easy-to-install.
Advantage of Viton® for Die Cut Gaskets
Viton® gaskets are made of high-performance fluoroelastomers that provide outstanding resistance to heat. These rubber gaskets generally support temperatures from 15° F to 400° F and are suitable for applications that reach 500° F intermittently. Gaskets made of Viton® also provide excellent resistance to:
- oils
- alkalis
- concentrated bases
- most mineral acids
- sun, weather, and oxidation
- mold and fungus
Importantly, rubber gaskets made of Viton® provide good resistance to compression set, even at high temperatures over extended periods of time. Gaskets made of this DuPont elastomer also have good electrical properties for low-voltage, low-frequency applications.
Additional advantages of Viton® for elastomeric gaskets include:
- good abrasion and tear resistance
- excellent solvent and oil resistance
- low burning characteristics
Types of Viton® for Die Cut Gaskets
Interstate die cuts rubber gaskets made of premium, commercial, and FDA grades of Viton®. Fluorine percentages vary and range from 66% to 70%. Lettered designations (A, B, F) indicate the fluorine content and, in turn, the elastomer’s relative resistance to fluid and chemical attack. Grades with higher amounts of fluorine have greater resistance to these attacks, but offer less low-temperature flexibility.
This table describes some types of Viton® that Interstate Specialty Products can die cut.
|
Gasket Material |
Fluorine Percentage |
Resistance to Compression Set |
General Resistance to Fluids and Chemicals |
Low Temperature Flexibility |
|---|---|---|---|---|
|
Viton® A |
66% |
Excellent |
Good |
Very Good |
|
Viton® B |
68% |
Very Good |
Very Good |
Very Good |
|
Viton® F |
70% |
Very Good |
Excellent |
Good |
Interstate can also die cut gaskets made of Viton® Extreme, ETP-500, and ETP-900 grades. Unlike conventional fluoroelastomers, the ETP grades of Viton® provide excellent resistance to volume swell and property loss in highly caustic solutions and amines.
Gaskets made of Viton® can be die cut from solid, sponge, or foam rubber. Durometers typically range from 60 to 90 (Shore A). Most gaskets made of Viton® are black, white, or brown in color; however, custom compounding can create specialized colors. In the ASTM D 2000 and SAE J2000 specifications, Viton® is categorized as a fluorinated elastomer and given an HK designation.
Applications of Viton® for Rubber Gaskets
With its fuel resistance and low burning characteristics, Viton® was used originally in the aerospace industry. Today, gaskets made of Viton® are used in automotive, fluid power, appliance, and chemical applications. The introduction of FDA grades of Viton® have extended the uses of this fluoroelastomer to the food processing and pharmaceutical industries.
Gaskets made of Viton® are recommended for harsh, high-temperature environments. They are often used with lubricating and fuel oils, hydraulic oil, gasoline, kerosene, vegetable oils, alcohols, and diluted acids. Sealing applications include heat and intake manifold gaskets, siphon and fuel hoses, and quick-connect O-rings. Viton® is also used in fuel seals, T-seals, cap seals, and radial lip seals in pumps.
Choose Viton® for High-Temperature Rubber Gaskets
Interstate Specialty Products uses precision die cutting and digital knife cutting to create rubber gaskets made of Viton®. To promote ease-of-installation, your die cut gaskets can be supplied with a pressure sensitive adhesive (PSA) backing. Silicone PSAs provide high-temperature resistance. Acrylic PSAs resist some solvents.
Do you need gaskets made of Viton® for your application? Learn more about Interstate’s gasket fabrication capabilities, and how Viton® can meet demanding requirements for sealing and insulation. For more information, contact us on-line or call (800) 984-1811.
*Properties and applications shown throughout this website are typical. Your specific application should not be undertaken without independent study and evaluation for suitability.
**Viton® is a registered trademark of DuPont™ for its elastomers.
