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Viton selection guide DuPont Viton Selection Guide Technical Information ??Rev July Introduction DuPont Viton uoroelastomer was introduced in to meet the needs of the aerospace industry for a high-performance seal elastomer Since then the use of Viton uor

DuPont Viton Selection Guide Technical Information ??Rev July Introduction DuPont Viton uoroelastomer was introduced in to meet the needs of the aerospace industry for a high-performance seal elastomer Since then the use of Viton uoroelastomer has expanded to many other industries especially in the automotive uid power appliance and chemical ?elds With over years of proven performance Viton uoroelastomer 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 including the following features ? Resistance to temperature extremes Heat ??Compared to most other elastomers Viton is better able to withstands high temperature while simultaneously retaining its good mechanical properties Oil and chemical resistance are also essentially una ?ected by elevated temperatures Compounds of Viton remain substantially elastic substantially inde ?nitely when exposed to laboratory air oven aging up to C or to intermittent exposures up to C High temperature service limits are generally considered to be hr at C hr at C hr at C hr at C Cold ??Viton is generally serviceable in dynamic applications to temperatures of ?? to ?? C Special formulations permit its use in static applications down to ?? C Also Viton has proven to be satisfactory for static seals used under conditions approaching absolute zero Viton is characterized by its ? Resistance to degradation by a greater variety of uids and chemicals than any non uorinated 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- uorinated hydrocarbon rubbers CSafety and Handling As with many polymers minute quantities of potentially irritating or harmful gases may di ?use from uncured DuPont Viton even at room temperature Therefore all containers should be opened and used only in well-ventilated areas In case of eye contact immediately ush the eyes for at least min 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 the raw polymers into ?nished products or under high-temperature service conditions Therefore before handling or processing Viton make sure that you read and follow the recommendations in the DuPont bulletin ??Handling Precautions for Viton and Related Chemicals ? Compounding ingredients and solvents that are used with Viton to prepare ?nished 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