Nitrile butadiene 30 f 250 f. Animal and vegetable oils ozone strong and oxidizing chemicals.
Chloroprene Neoprene Epdm Or Silicone To Suit Your Specific
Buna n vs epdm. About us success stories contact us. Selecting the proper gasket material can make a significant difference in the lifespan of the tank. Made from odorless and tasteless compounds it can be wisely used in both specialty and general purpose applications. As a sealing option the crucial difference between buna and viton is the temperature range the materials function in. Temperature tolerance chemical compatibility and cost. Which seal for your application.
Epdm rubber is used in applications that demand both flexibility and ruggedness. Poor resistance to petroleum based fluids. We offer three different premium gasket materials for our steel storage tanks. Rubber properties the chart below is intended to help in the material selection stage of designing rubber parts products. Ethylene propylene 40 f 300 f. Epdm is not resistant to hydrocarbon solvents and oils chlorinated hydrocarbons turpentine or any other petroleum based oils.
Nitrile rubber nitrile rubber also known as buna n is made by combining the polymers butadiene and acrylonitrile. Buna n nbr nitrile. Epdm viton or buna n. Meanwhile buna is only effective in the same manner up to 250f and is the better option for low temperature seals as low as 30f. Buna n is also commonly identified as nbr nitrile or hycar. Epdm several factors must be considered.
The major weakness of epdm rubber washers and other seals is that they break down and deliver poor sealing performance in systems handling petroleum based fuels oils and solvents. When comparing viton vs. Epdm which stands for ethylene propylene diene monomer has its own set of properties that make it an extremely popular o ring material. Nbr is compatible with petroleum fluids including dinosaur and synthetic lubricating oils pure gasoline and diesel fuel. Buna n b rated for temperatures 0f to 180f. It is normally the least expensive of the rubber types we will discuss here.
Buna which is also known as nitrile buna n perbunan or nbr performs well in applications requiring metal adhesion and abrasion resistance. Viton seals hold indefinitely at temperatures up to 400f and can last up to 48 hours at temperatures up to 600f. Page 1 of 2. Excellent ozone chemical and aging resistance. Continue reading for the full comparison. It is ideal for temperature ranges of 40f to 250f.
Viton is the choice over buna for high temperature applications. Rubber properties neoprene epdm buna n silicone sbr butyl natural rubber gu. Mineral oils and solvents aromatic hydrocarbons. Rubber compounding is a very broad and technical field since basic rubbers or elastomers are mixed with various chemicals and. Buna n sometimes shortened to just buna is a trade name for nitrile rubber known internationally as nbr. Epdm ethylene propylene diene monomer is a specially designed synthetic rubber for water applications.
Gallery of Buna N Vs Epdm
