Buna N O Ring Compatibility

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Buna n o ring compatibility. The chemical compatibility of rubber is extremely important as the rubber can degrade rapidly if the rubber material is not compatible with the environment or media that it comes into contact with. Parker buna o rings are recommended for petroleum based oils and fluids mineral oils ethylene glycol base fluids silicone and diester base lubricants air natural gas and water under 150 f 66 c. Nitrile is unique among synthetic rubbers in that it is generally resistant to chemicals such as oil and fuel among other substances such as mineral and vegetable oils diluted acids. Its versatility makes it an ideal material for o rings seals gaskets and custom molded components for all industries and applications.

Buna n rings with durometer 70 shore a can offer hood physical properties and provide excellent resistance to petroleum products. O ring chemical compatibility chart learn how different o ring materials and chemicals interact. 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. Buna also referred to as nitrile or buna n is an nbr rubber that displays excellent resistance to all petroleum based oils and fuels as well as water various alcohols silicone greases and hydraulic fluids.

Ammonium picrate 1 3 3 1 2 1. Key to o ring material compatibility ratings 4 good both for static and dynamic seals 3. O ring compatibility plays a critical role in o ring performance â find the right material for your application and avoid o ring failures. A common parker nitrile o ring compound is n0674 black.

3 1 2 chemical compatibility guide for nitrile buna n 3 1 3 chemical compatibility guide for silicone this document contains information proprietary to bal seal engineering and may not be used reproduced or disclosed to anyone else in whole or. Property nitrile buna n ethylene propylene ep fluoro elastomer viton ptfe tensile strength. Basic o ring chemical resistance compatibility information is based on isolated generic o ring material testing in optimal conditions at room temperature and pressure. It offers such other advantages as good tear resistance and non polar solvent resistance.