Selection Guide - Fluoroelastomers - Technical Information

Nov 2, 2026

Viton™ fluoroelastomer selection guidance explains how Viton™ was developed for aerospace sealing needs and why it is widely used across automotive, fluid power, appliance, and chemical environments. The guide highlights key performance attributes, especially heat and cold service limits, resistance to oils fuels and chemicals, low permeability, atmospheric oxidation resistance, and good electrical behavior. It also covers safety and handling considerations, hazards during processing, and the rationale behind standard A, B, and F families plus specialty types.

LanguageEnglish

CategoryTechnology

FormatPDF

Pages12

Reading Time30 min

AccessFree to download

Introduction

Valuable Properties of Viton™ Fluoroelastomer

Resistance to Temperature Extremes

Chemical and Physical Resistance

Safety and Handling

The Various Families and Types of Viton™ Fluoroelastomers

Types of Viton™ Extreme™

Selection Guide Fluoroelastomers Technical Information Introduction Viton™ fluoroelastomer was introduced in 1957 to meet the needs of the aerospace industry for a highperformance seal elastomer. Since then, the use of Viton™ fluoroelastomer has expanded to many other industries, especially in the automotive, fluid power, appliance, and chemical fields. With over half a century of proven performance, Viton™ fluoroelastomer has developed a reputation for outstanding performance in high temperature and extremely corrosive environments. Valuable Properties of Viton™ Fluoroelastomer Vulcanizates based on Viton™ provide an exceptional balance of physical property characteristics, includingthe following features: Resistance to Temperature Extremes Heat—Compared to most other elastomers, Viton™ is better able to withstand high temperature, while simultaneously retaining its good mechanical properties. Oil and chemical resistance are also essentially unaffected by elevated temperatures. Compounds of Viton™ remain substantially elastic indefinitely when exposed to laboratory air oven aging up to 204 °C (399 °F) or to intermittent exposures up to 316 °C (601 °F) . High temperature service limits are generally considered to be: – 3,000 hr at 232 °C (450 °F) – 1,000 hr at 260 °C (500 °F) – 240 hr at 288 °C (550 °F) – 48 hr at 316 °C (601 °F) Cold—Viton™ low temperature performance is dependent on type, with serviceability as low as –31 °C (–24 °F) in dynamic seals and –45 °C (–49 °F) in static seals using Viton™ GLT-S. Viton™ is characterized by its: • Resistance to degradation by a greater variety of fluidsand chemicals than any other non-fluorinated elastomer. Excellent resistance to oils, fuels, lubricants, and most mineral acids. • Extremely low permeability to a broad range of substances, including particularly good performance in oxygenated automotive fuels. • Resistance to aliphatic, aromatic hydrocarbons that dissolve other rubbers. • Exceptionally good resistance to compression set, even at high temperatures. • Exceptionally good resistance to atmospheric oxidation, sun, and weather. Excellent resistance to fungus and mold. • Good electrical properties in low voltage, low frequency applications. • Low burning characteristics; inherently more resistant to burning than other, non-fluorinated hydrocarbon rubbers. Safety and Handling As with many polymers, minute quantities of potentially irritating or harmful gases may diffuse from uncured Viton™, even at room temperature. Therefore, all containers should be opened and used only in well-ventilated areas. In case of eye contact, immediately flush the eyes for at least 15 minutes with water. Always wash contacted skin with soap and water after handling Viton™ . Potential hazards, including the evolution of toxic vapors, may arise during compounding, processing, and curing of raw polymers into finished products or under hightemperature service conditions. Therefore, before handling or processing Viton™, make sure that you read and follow the recommendations in the Chemours technical bulletin,“Handling Precautions for Viton™ and Related Chemicals.” Compounding ingredients and solvents that are used with Viton™ to prepare finished products may present hazards in handling and use. Before proceeding with any compounding or processing work, consult and follow label directions and handling precautions from suppliers of all ingredients. The Various Families and Types of Viton™ Fluoroelastomers Standard types of Viton™ fluoroelastomer products are designated as A, B, or F according to their relative resistance to attack by fluids and chemicals. The differences in fluid resistance are the result of different levels of fluorine in the polymer, which is determined by the types and relative amounts of copolymerized monomers that comprise the polymer. In general, Viton™ exhibits outstanding resistance to attack from a wide variety of fluids, i

FAQs

What makes Viton™ suitable for high-temperature sealing?

Viton™ is better able to withstand high temperatures than most other elastomers while retaining good mechanical properties. Its compounds remain substantially elastic during laboratory oven aging up to 204 °C and intermittent exposures up to 316 °C.

How does Viton™ perform in low-temperature applications?

Low temperature serviceability depends on type. The guide states serviceability as low as −31 °C for dynamic seals and −45 °C for static seals using Viton™ GLT-S.

What safety steps are recommended when handling Viton™?

Use containers only in well-ventilated areas because small amounts of potentially irritating gases may diffuse. In case of eye contact, flush eyes for at least 15 minutes with water, and wash contacted skin with soap and water after handling.

Nov 2, 2026

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