Physical and chemical properties physical data melting point. Combustion products from rubber, like those of other natural and synthetic materials, must be considered toxic. Epdm rubber, a polymer composed of ethylene propylene, diene monomer, is the premier weather resistant synthetic elastomer. Ethylene propylene rubber is commonly produced as epdm sheet rubber, which is used to create gaskets, seals, protective pads, and other various products. Epdm rubber ethylene propylene diene monomer rubber is a type of synthetic rubber that is used in many applications epdm is an mclass rubber under astm standard d1418. Ethylenepropylene diene monomer epdm is a synthetic rubber. Its also tough tires, resists water and chemicals gloves, elastic rubber bands and much more. Epdm elastomer sulfur cured 75 duro shore a, smooth finished branded epdm nsfansi61 made in usa for ease of identification produced in the usa, under a stringent iso quality system. They deliver heatresistant part performance and processing benefits that exceed those provided by natural and generalpurpose rubbers. The biggest differences between these two rubber products lie in their resistance to petroleumbased fuel and lubrication products, and. Pdf on mar 3, 2016, inpil kang and others published epdm. Rubber material selection guide rubber material selection guide.
Epdm provides superior properties for outdoor and high temperature applications. Excellent physical properties including abrasion and low temperature resistance. Several studies have been carried out to reuse scraptires in a variety of rubber and plastic products, incineration for production of electricity, or as fuel for cement kilns, as well as in asphalt concrete. With more than half a decade of experience in providing custom rubber solutions for businesses, timco rubber can work with you to provide the right epdm parts for your applications. Ethylene propylene diene monomer epdm is a copolymer of ethylene, propylene and a small amount of nonconjugated diene monomers 3 9 percent which provide crosslinking sites for vulcanization. Exxonmobil chemicals broad range of vistalon ethylene propylene diene epdm rubber grades are used in a wide variety of applications in the automotive, consumer and industrial sectors. Epdm rubber is a type of synthetic rubber that is used in many applications. Fg epdm is whiteoff white in color and easy cleaned.
Rubber refers to elastomeric compounds that consist of various monomer units forming polymers that are heat cured vulcanized. Sheet epdm was very costeffective and relatively easy to install. Relationship among vulcanization, mechanical properties. Preparation and properties of ethylene propylene diene rubbermulti walled. Epdm rubber is often used in weather seals, and as a source of noise reduction in the automotive industry.
Two common synthetic rubber compounds are known as epdm and nitrile rubber. Pdf analysis of the rheological behavior of epdm rubber. Rubber material selection guide epdm or ethylene propylene. Epdm 70, epdm rubber, epdm material, epdm properties mykin inc. Epdm rubber ethylene propylene diene monomer epdm can be vulcanized by the conventional method of using sulphur. Properties shown are typical, not to be construed as specifications. Epdm 70, epdm rubber, epdm material, epdm properties mykin.
The diene is usually dicyclopentadiene, ethylidene nobornene, or 1,4 hexadiene. This nitrile 70 durometer 70a specifications chart will help you determine if these nitrile material properties will be compatible with your rubber or oring seal application. Excellent resistance to oxidation and ozone attack. Once the liquid epdm cures will result in a smooth seamless membrane. The nitrile rubber properties that are listed below are for our most popular nitrile 70 durometer 70a rubber material compound. Epdm is made from ethylene, propylene, and a diene comonomer that enables. Epdm rubber is a highdensity synthetic rubber used for outdoor applications and other spaces in need of tough, versatile parts. Oesbr is oil extended styrenebutadiene rubber, lsbr means styrenebutadiene rubber produced by polymerization in solution, hnbr is hydrogenated acrylonitrilebutadiene rubber, ciir is chlorinated isobuteneisoprene rubber etc.
Epdm 70, epdm rubber, epdm material, epdm properties. Synthetic rubber comes in nearly a dozen major types with differing properties for various applications. A lip sealing ring constitutes the seal between socket an spigot end. Property ranges of nordel epdm products1,2 1 data per tests conducted by dow. Unsatisfactory compatibility with most oils, gasoline.
Epdm rubber is a thermoset elastomer or rubber material. Epdm or ethylene propylene diene monomer epdm coatings. If you need epdm properties that are different than the ones shown in the chart below. Our epdm rubber sheet has excellent physical properties and is resistant to hot water and steam. Selecting the correct elastomer for an application will depend on the chemical resistance, temperature and mechanical properties needed. Epdm can be vulcanized by the conventional method of using sulphur.
Epdms dynamic and mechanical properties are, in general, between natural rubber and sbr. Common name neoprene natural polyisoprene butyl chlorinated butyl buna n sbr hypalon vamac ethylene propylene rubber polyethylene teflon crosslinked polyethylene modified crosslinked polyethylene composition name chlorprene. Other ingredients include carbon black, oil and vulcanization systems. Epdm has good low temperature properties, with elastic properties to. Epdm rubber a general purpose medium grade 6570sh epdmsbr, suitable for low pressure pipe seals, skets, weatherstrip, etc. Fg epdm is resistant to cleaning chemicals and offers long service life. Rubber parts can therefore function as shock and vibration isolators andor as dampers. Epdm sheet rubber is a versatile blended sheet composed of ethylene propylene diene monomer and styrene butadiene rubber. It has dynamic and mechanical properties between natural rubber and synthetic rubber. Vulcanization is explaind more deeply on the vert modules rubber chemistry and raw materials and compounds in rubber industry. If you need epdm properties that are different than the ones shown in the chart below, we can reformulate the compound of the epdm material so that the epdm rubber specifications suit your needs. It is highly extendible and is sulfur and peroxide. The food grade epdm is compliant to the code of federal regulations 21cfr177.
Schaefer introduction rubber is a unique material that is both elastic and viscous. However, marco rubber makes no warranty, expressed or implied, that parts manufactured from this material will perform satisfactorily in the customers application. Rubber compound process troubleshooting frequency sweep at 100 c strain sweep at 100 c bad and good batches show almost identical viscoelastic properties in both frequency and strain sweep. Epdm is the predominant, and maybe the only elastomer used today for thermoset roofing membranes because of its broad range of performance properties. The epdm properties that are listed below are for our most popular epdm 70 durometer 70a rubber material. Although the term rubber is used rather loosely, it usually refers to the compounded and vulcanized. Characterization of additives typically employed in epdm formulations y using ftir of gaseous pyrolyzatesthe analysis of pyrolysis products can clarify the composition of a polymer, because the obtained fragments are related to the fundamental structure of the original macromolecule. Engineering sciences mechanical properties of rubber an overview al.
Epdm rubber ethylene propylene diene monomer rubber is a type of synthetic rubber that is used in many applications. Lindsay 1972 diene termonomer type and epdm properties. Nordel epdm offers exceptional polymer cleanliness figure 1. Characterization of additives typically employed in epdm formulations y using ftir of gaseous pyrolyzates the analysis of pyrolysis products can clarify the composition of a polymer, because the obtained fragments are related to the fundamental structure of the. It has a fairly low density and the highest heat capacity among rubber materials. It has an excellent operating temperature and is highly recommended for outdoor uses, as it is extremely resistant to oxidation, uv and ozone. Epdm is also produced by select major polymer manufacturers, and may be referred to as their designated trade names, such as. Epdm is a primary ingredient in the compound that is used to create these gaskets, profiles or membranes. There are two basic types of ep rubber available in todays marketep and epdm. It achieves an ideal balance to create an allpurpose, weather resistant rubber.
Epdm has excellent resistance to heat, ozone and sunlight and good resistance to alkalis, acids and oxygenated solvents. Technical information epdm rubber gaskets kastrade. Epdm ethylenepropylenediene modified general description. Rubber maven offers this product in a number of custom grades and sizes that can be cut into custom parts per your detailed drawing. Get rubber physical property charts and data sheets in a pdf form about neoprene, durafoam and more from monmouth rubber and plastics.
Here you will find our nitrile specifications chart which can also be downloaded in pdf. The resistance to polar substances and steam are also good. Epdm or ethylene propylene diene monomer is a specific type of synthetic rubber. Several studies have been carried out to reuse scraptires in a variety of rubber and plastic products, incineration for production of electricity. Nitrile 70, nitrile rubber properties, nitrile specifications. Epdm rubber a general purpose medium grade 6570sh epdm sbr, suitable for low pressure pipe seals, skets, weatherstrip, etc. Material properties of epdm, nbr, and fpm rubber seals. In addition, they are difficult to disperse well in epdm rubber compounds because of their higher polarity. Epdm rubber exhibits superiority to diene rubber in number of respects. Also has good mechanical properties and abrasion resistance. Cure characteristics, mechanical and swelling properties. Ethylene propylene rubbers properties and applications of. Epdm is not recommended for use with petroleum oils, fluids, or solvents because significant swelling would result.
Cyanurate has been used as a coagent for epdm compounds. Epdm rubber ethylene propylene diene monomer rubber is a highdensity synthetic rubber primarily used for outdoor applications like rubber roofing. Epdm rubber ethylene propylene diene monomer rubber is an elastomer which is characterized by wide range of applications and good chemical resistance. This sealing ring is green and made from fluorine rubber viton. The graph bars on the material properties cards below compare epdm rubber to other rubber materials top and the entire database bottom. As mentioned earlier, when correctly formulated, it. Duratufs range of stateoftheart epdm rubber sheet is composed of the abovementioned compound and exhibits superior resistance to both chemicals such as acids and alkalis, and extreme temperature as well.
We can change the formulation of the rubber so that the specifications meet your needs. An experimental investigation is made to study the rheological behavior of an ethylene propylene diene terpolymer rubber epdm compound for extrusion containing a blowing agent. Conducting rubber composites consist of epdm polymer matrix, mwcnt. Here you will find our ethylene propylene rubber epdm specifications chart which can also be downloaded in pdf. Characterization of additives typically employed in epdm. The epdm lip seal is a good allround rubber quality suitable for a wide range of applications.
Its the customers responsibility to evaluate parts prior to use. Rubber physical properties charts and data and sheets. The lip sealing ring ensures quick and efficient jointing of the pipe system while providing a tight seal in case of both pressure and vacuum. For advice regarding the suitability of the different rubber qualities, consult blucher. Epdm rubber is an extremely versatile material that can be used in a variety of applications, from automotive. Ethylene propylene rubbers properties and applications. Named for its property as an eraser to rub out pencil marks, rubber is widely used. Very good temperature flexibility, superior resistance to water and steam. Wras approved potable water grades are also available.
This is bluchers sealing ring for special applications. Only some significant difference is observed at very low shear rate frequency on tangent tainstruments. Usually the blending of epdm rubber with other rubber have given the com. Also some other letter can create a part of abbreviation, and these closer characterize appropriate rubber, e. Vulcanized residues of ethylenepropylene diene monomer rubber epdm from. Ep is a copolymer of ethylene and propylene, while epdm is a terpolymer combining ethylene, propylene and a diene monomer. Epdm is an mclass rubber under astm standard d1418. This rubber essentially mirrors many of the physical properties of natural rubber and adds the allimportant functional property of weathering resistance. During the process or after it the rubber is vulcanized crosslinked, due to which rubber elasticity and dimensional stability appear. General properties of elastomers elbex corporation. Liquid epdm rubber has over a 30 year history in the field. Bulletin of the transilvania university of bra sov vol. Epdm rubber can withstand temperatures ranging from 58f to 302f.
Rubber is bouncy, sure, but thats just the start of its numerous properties. Epdm is an excellent source for gaskets or gasket sealing against atmospheric conditions such as sunlight, ozone, wind and rain. Ethylene propylene rubbers are a general purpose rubber with a growing range of applications. Polymers are long molecular chains and are derived from the greek poly many and meros parts. However, tmptmatac are low mw components that can cause migration, odor and voc concerns. It is suitable for prolonged exposure to aquatic environments.
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