These hard orings offer better wear resistance than standard buna n o rings. Nbr is commonly referred to as a nitrile rubber and is a standard synthetic elastomer for accomplishing. Please go to products for more detailed information. Polybutadiene rubber is a polymer formed from the polymerization of the monomer 1,3butadiene. A group of acrylonitrilebutadiene copolymers, given the name buna n, was patented in 1934 by german chemists erich konrad and eduard tschunkur, working for ig farben. Softer than standard buna n orings for a better seal in lowpressure applications. They are round and made from buna rubber for a tight seal and superior compression. Our rubber products are a proprietary blend of various polymers formulated to meet stated physicals and specifications. Shop a large range of buna n rub ber sheets at msc industrial supply. Polybutadiene butadiene rubber br is a synthetic rubber.
Click on the links below if you are ready to place an order. It offers both good oil resistance and good heat resistance, and is commonly used for bonding most rubber and gasket materials. Gasket material,neoprene,sbr,red rubber,nitrile,bunan, buna red. Nitrile nbr is the polymer of choice for applications requiring oil and solvent resistance. Proper usage and audio pronunciation of the word buna rubber. The general operation method of mixing in the open mill is to first add the raw rubber through the roll to the front roll, and leave a proper amount of. Nitrilebutadiene rubber nbr rubber, bunan irp plant. When you need an oring thatas not an industry standard size, we can make one to fit your requirements. Nitrile bunan nbr rubber is an economical material that provides high resistance to oils and hydrocarbon based fluids. Buna rubber article about buna rubber by the free dictionary. Red rubber is a general service sbr rubber compound of excellent quality. Nitrile rubber compounds were prepared by the addition of polyimide pi.
Trade names include perbunan, nipol, krynac and europrene. Bunan sheet rubber results page 1 abbott rubber company. Rubber compounding is a very broad and technical field, since basic rubbers or elastomers are mixed with various chemicals and ingredients and even with each other to obtain desired physical properties. Nitrile butadiene rubber nbr and other elastomers each present their own set of characteristics and abilities to the table. Nitrile 70, nitrile rubber properties, nitrile specifications. Milhdbk692b foreword designers and engineers, faced with the task of specifying a suitable type of rubber oring for use in aspecific application, are often hindered by lack of information as to which types of rubber will function properly under a. Nitrile rubber nbr nitrile bunan sheet order online. Matl style code metro industries material specification. Buna n orings also referred to as nbr orings and nitrile orings are the most widely used oring material in the word because of low cost, good mechanical performance with resistance to water, most basic oils, lubricants and some fuels, many pneumatic, hydraulic systems, and the default choice for basic applications. Nitrile rubber, like styrenebutadiene rubber and other synthetic elastomers elastic polymers, was a product of research that took place during and between the two world wars. Nitrile nbr bunan rubber rolls and sheet for gaskets.
Nitrile 60 durometer buna nitrile rubber is a copolymer of butadiene and acrylonitrile that possesses unique physical and chemical properties that make it one of the most widely used synthetic elastomers in the world. Nitrile buna n sheet rubber, commercial grade, mediumhard 60 durometer, shore a. We also have nitrile sheets, nitrile rolls and quantity pricing on the items listed. Pdf the nitrile rubber nbrunmodified montmorillonite nammt clay nanocomposites were prepared. Finding the most appropriate elastomer for an application is not as simple as choosing a sheet colored red, white or black. Rubber material selection guide nbr nitrile or buna n. Rubber bonded metal skeleton chemical treatment method. Nitrile rubber is resistant to oil, caustics, aliphatic hydrocarbons, and hydraulic fluids. Polybutadiene has a high resistance to wear and is used especially in the manufacture of tires, which consumes about 70% of the production.
Nitrile rubber, also known as nbr, buna n, and acrylonitrile butadiene rubber, is a synthetic rubber copolymer of acrylonitrile acn and butadiene. Rubbercal nitrile commercial grade black 60a rubber sheet buna rubber 18 thick x 36 width x 24 length. The term elastomer is sometimes used to designate synthetic rubber only and is sometimes extended to include caoutchouc as well click the link for more information. This heat resistant material has been calendared and vulcanized under the strictest control. Information about buna rubber in the dictionary, synonyms and antonyms.
It is the most widely used and economical elastomer. Nitrile is not suitable for solvents and chlorinated hydrocarbons. Mykins rn00170, nitrile bunan 70 durometer, is a general purpose copolymer of butadiene and acrylonitrile. Different nitrile compounds are available for fuels and for industrial fluids. Study of thermal stability of nitrile rubberpolyimide. Below is a selection of different types of nitrile rubber that we offer. In order to make the rubber and metal adhere better, in. Nitrile bunan sheet rubber products from warco biltrite. The named product polymer is not necessarily the primary polymer representing the highest percentage of. Nitrile rubber is also referred to as bunan rubber. Rubber extrusions general properties of elastomers elastomer page butyl 2 epdm ethylenepropylenediene modified 3 natural rubber 4 neoprene 5 nitrile buna n 6 polyisoprene 7 sbr styrene butadiene 8 silicone 9 summary chart 10. Looking for online definition of buna rubber in the medical dictionary. Any of a family of synthetic rubbers made from the polymerization of butadiene with a sodium catalyst.
Rubbercal nitrile commercial grade black 60a rubber sheet buna rubber 38 thick x 12 width x 12 length. Popular flange gasket material for hot or cold water, air and steam not exceeding 100 psi. The effect of polyimide on thermal stability of nitrile rubber was studied. Oring gaskets are used for general applications such as faucet repair or automotive. Identification of the substancemixture and of the companyundertaking. Matl style code metro industries material specification rsbne60. Nbr offers excellent resistance to petroleumbased oils and fuels, silicone greases, hydraulic fluids, water and alcohols. As the freeradicals of nbr have a certain activity, the reactions of both chain. Pdf preparation and properties of nitrile rubbermontmorillonite. Timco rubber can work with your business to design and provide nitrile parts customized for the specific needs of your applications. General features nitrile rubber is a copolymer of acrylonitrile acn and butadiene that is generally resistant to oil, fuel, aliphatic hydrocarbons, and other chemicals, but can be attacked by ozone, aromatic hydrocarbons, ketones, esters and aldehydes. Rubber is composed of many different ingredients that include the base elastomer. Thermodyn globals library of data sheets click the links below for printable, pdf versions of our data sheets data sheets for additional products are available upon request.
Call 18006546518 epdm epdm rubber cloth inserted rolls epdm rubber. Msc industrial supply is here to support all your metalworking and maintenance repair needs with over 1 million products in stock and ready to ship today. Nitrile rubber, also called nitrilebutadiene rubber nbr, buna n, is a synthetic rubber that provides excellent resistance to petroleumbased oils as well as mineral and vegetable oil. Our premium grade nitrile is formulated to give maximum oil resistance and longer service life in demanding applications. Buna rubber definition of buna rubber by the free dictionary. Nitrile rubbers are copolymers of butadiene and acrylonitrile and are frequently. Nitrile rubber nbr buna nis a general purpose material resistant to a large variety of oils and greases. Crosslinked, vulcanized elastomer free of solvent which contracts. These resist grease, hydraulic oils, and motor oil.
Nitrile butadiene rubber nbr is a family of unsaturated copolymers of 2propenenitrile and various butadiene monomers 1,2butadiene. Production via solution polymerization is carried out. Nitrilebutadiene rubber bunan, nbr rubber is a synthetic polymer, the product of radical copolymerization of butadiene with acrylonitrile acn in aqueous emulsion at 30 c high temperature and at 5 c low temperature. The chart below is intended to help in the material selection stage of designing rubber parts products.
Nitrile has very good oil and gasoline resistance, superior resistance to petroleumbased hydraulic fluids, a wide range of service temperatures, good resistance to hydrocarbon solvents, and very good resistance to alkalis and acids. Documents for buna available in pdf, doc, xls and ppt format. Its a synthetic rubber polymer known for its superior resistance to fuels such as kerosene, diesel, lubricating oils, grease and petroleum based transmission fluids. It is used for making oil seels,manufacturing of tank linings,protective gloves etc. Nitrile rubber nbr is the general term for acrylonitrile butadiene copolymer. This is due to nitriles compatibility with most environments as well as its relative cost compared to other rubber materials. Shop a large range of buna n rubber sheets at msc industrial supply. General properties of elastomers elbex corporation. Buna rubber definition of buna rubber by medical dictionary.