Buna N Rubber Vs Neoprene

Which seal for your application.

Buna n rubber vs neoprene.

Neoprene or polychloroprene is a synthetic rubber made up of polymers of chloroprene molecules through a process of free radical polymerization and various chemical reactions. As a sealing option the crucial difference between buna and viton is the temperature range the materials function in. Viton is resistant to many hydrocarbons and is best to use with chemicals in the petroleum industry. Use this rubber chemical resistance chart to make sure that the elastomer or o ring seal you choose will be compatible with the particular environment.

Applications nitrile rubber is recommended for applications that require oil and fuel resistance abrasion resistance and temperature resistance up to 280 f. Here is the rubber compatibility chart that rates all popular rubber materials that comes into contact with various chemicals. The two rubbers vary in resistance to heat abrasion flame petroleum or weather so are used for different applications. Viton seals hold indefinitely at temperatures up to 400 f and can last up to 48 hours at temperatures up to 600 f.

Rubber properties neoprene epdm buna n silicone sbr butyl natural rubber gum rubber hypalon urethane viton fluoroelastomer fluoro silicone hydrogenated. The key difference between buna n and viton is that buna n is a copolymer of butadiene. Nitrile and neoprene are types of synthetic rubber but have different chemical structures. The polymers are chemically treated to enhance polymer branching for a more flexible material.

There are many types of synthetic rubber and they are broadly classified into two categories namely. General purpose synthetic rubbers and. Welcome to our rubber chemical resistance chart. Viton is the choice over buna for high temperature applications.

Neoprene also has a low oxidation rate so it is suitable for both indoor and outdoor. Keydifference neoprene vs nitrile rubber many rubber related product manufacturers rely on various types of synthetic rubber due to various reasons. In mobile equipment and military vehicles nitrile seals or gaskets are used in carburetor diaphragms fuel systems and hydraulic hoses. Key difference buna n vs viton buna n and viton are commercial names for butadiene acrylonitrile nitrile rubber and vinylidene fluoride hexafluoropropylene copolymer respectively both these elastomers are widely used synthetic elastomers that possess a unique set of physical and chemical properties.

These are butadiene and acrylonitrile. If you are looking for an oil resistant rubber neoprene is a good choice and it also has a temperature resistance of up to 200 degrees fahrenheit f. To learn more about other rubbers including butyl nitrile and silicone rubber check out our buying guide on the commonly used types of rubber in industry.