This material has an excellent tolerance for high temperatures, resistance to oils, fuels and hydraulic fluids as well as aromatics and solvents. … As well as resisting oils, petrol and hydrocarbons, Viton™ is resistant to mineral acids, halogenated hydrocarbons and more.
Is Viton gasoline proof?
With exceptional chemical resistance, Viton® offers swell resistance in high octane and oxygenated fuel blends. This gives Viton® superior performance abilities in Ethanol/Methanol blended gasoline applications.
What O ring material is resistant to gasoline?
Buna (Nitrile or NBR) O-rings: general purpose sealing
Buna O-rings, also known as nitrile or NBR O-rings, offer excellent sealing and mechanical properties at a low cost. Buna O-rings have resistance to common lubricants and are recommended for crude oil, gasoline, propane, petroleum oils and water.
Are O rings petrol resistant?
Nitrile o-rings are a popular type of rubber seal gasket that’s used in a wide range of applications and environments – they’re broadly seen as a general-purpose o-ring type, with reasonably resistant sealing properties against water, gasoline, petroleum oils, crude oil, propane and some hydraulic fluids.
Is Viton harder than nitrile?
Viton® seals are prone to failure below -15°C in dynamic applications, as they become inflexible and hard. … This makes Viton® far superior to Nitrile in these regards. They are also designed to resist most oils and lubricants, more importantly petroleum-based lubricants.
How long do Viton o rings last?
O-Ring Shelf Life Recommendation per AS5316
|Elastomer Family||ASTM||Shelf Life|
|Hydrogenated Nitrile, HNBR or HSN||HNBR||15 Years|
|Nitrile (Buna-N or NBR)||NBR||15 Years|
What is the difference between black o rings and green o rings?
Black o rings are primarily neoprene or Nitrile or, in some cases, a mix of the two materials. … Black o rings are most commonly used for auto air conditioning applications. Green o rings are hydrogenated Nitrile, also known as highly saturated Nitrile, or more commonly known as HNBR.
Are rubber o rings heat resistant?
O-ring Materials for Static and Dynamic Sealing Applications. … EPDM O-Ring Material: A synthetic rubber providing excellent chemical resistance and heat resistance. Has an operating temperature range of -60° to 300°F (-51° to 150°C) and a hardness range of 40-90 durometer.
What is the best O-ring material for chlorine?
O-Ring Materials Compatible with Chlorine, Wet
|O-Ring Materials Compatible with Chlorine, Wet (select a material to show its compatible chemicals)|
|Aflas (4)||Buna-N (Nitrile) (1)|
|Fluorocarbon (4)||Fluorosilicone (3)|
|Kalrez (4)||Natural Rubber (1)|
|Nitrile, Hydrogenated (2)||Polyacrylate (1)|