From office buildings and distribution warehouses to hospitals and schools, rubbergard epdm delivers outstanding, longlasting performance in all climates worldwide. Jan 23, 2018 the key difference between epdm and pvc is that the epdm is a synthetic rubber, which is synthesized from petroleum byproducts whereas, pvc is a thermoplastic, which can be melted down at high temperatures and thus, acquiring mouldable properties and can be cooled again to gain back the solid form. Epdm rubber is a highdensity synthetic rubber used for outdoor applications and other spaces in need of tough, versatile parts. Epdm or ethylene propylene diene monomer epdm coatings. The high modulus cords allow it to be maintenance free which reduces downtime, improves overall efficiency, and increases the power capacity by up to 20% over other highperformance cogged vbelts. All chemical resistance data for ethylene propylene epdm and fluorocarbon fkm contained within this manual has been provided, with written consent, by parker hannifin corporation. New generation epdm technologies 4d chemical production and. Rubber technology, compounding and testing for performance. Paper open access ultra high molecular weight nordel epdm for. In this article, martins rubber gives you an overview of the pros and cons of epdm sheeting. Although there are many ways to formulate epdm rubber from epdm polymer, all epdm rubbers share a chemical structure that gives them extraordinary resistance to heat, cold, sunlight, and air pollution.
Starting formulations peroxide and uv curing 10 material function supplier peroxide f. Lindsay 1972 diene termonomer type and epdm properties. Freudenberg sealing technologies has numerous approvals for this material epdm is indispensable for cip clean in place or sip sterilization in place cleaning processes. Epdm is a synthetic rubber with very inert chemical properties that offers excellent weathering resistance and good allround performance, except with fuels and oils. However, marco rubber makes no warranty, expressed or implied, that parts manufactured from this material will perform satisfactorily in the customers application. High performance, epdm rubber, increase temperature range. Introduction to rubber technology 2 days rubber in sealings 1 day practical rubber workshop. Epdm is a primary ingredient in the compound that is used to create these gaskets, profiles or membranes. With durability, flexibility and uv resistance built in, rubbergard. The structure and characteristics of most typical rubber and thermoplastic elastomers will be. Preparation and characteristics of nrepdm rubber blends. Technical data sheet epdm epdm rubber sheets no parameter unit value 1.
Technology development has been driven by novel catalysts and processes that have expanded the range of products. Ethylenepropylene diene monomer epdm is a synthetic rubber. With a few improvements in the control of the reaction, this same chemical process is still in use today. Pdf ethylenepropylenediene epdm rubber is a highly versatile. How to improve rubber compounds 2nd edition hanser. Efficiencies of dipolymer rubber blends epdm\fkm using. It is widely accepted around the world due to its excellent resistance to steam, water and heat, as well as ozone, sunlight, mild acidic, alkali and oxygenated solvents. Epdm rubber a general purpose medium grade 6570sh epdmsbr, suitable for low pressure pipe seals, skets, weatherstrip, etc. Also has good mechanical properties and abrasion resistance. Epm rubber can only be cured using freeradicals peroxide or radiation curing.
However, the fat content of the media may not exceed certain limits. Charles goodyears original rubber vulcanization process relied upon sulfur to crosslink the rubber polymer. Epdm ethylene propylene diene monomer rubber, is an elastomer characterized by a wide range of applications. The idea of this part of the virtual education in rubber technology course is to. Difference between epdm and pvc compare the difference. Epdm rubber mixes were prepared by two roll diameter 150 mm. Product data sheets 4 3 epdm product data sheets rubbergard epdm roofing membrane 1. With more than 55 years of leadership in epdm technology, we offer expertise in both metallocene and zieglernattabased epdm processes and continue to meet changing application needs globally.
Pdf on mar 3, 2016, inpil kang and others published epdm rubber. Processing and properties of fire resistant epdm rubberbased. Preparation and characteristics of nr epdm rubber blends. However, many rubber manufacturing facilities produce other engineered rubber products. Epdm rubber is a class of synthetic rubbers made primarily from epdm polymer, shorthand for ethylene propylene diene monomer. We are your partner for supplying all possible rubber products. Fatemi university of toledo,toledo,ohio, 43606 abstract many factors are known to influence the mechanical fatigue life of rubber components. Epdm can be cured with sulphur and peroxide, depending on the.
Epdm is made from ethylene, propylene, and a diene comonomer that enables. The cure system includes a twocomponent peroxide heat resistance that becomes initiated at 302 f. Pcp and epdm coating systems can be applied as external coatings through extrusion and by hand wrapping pcp polychloroprene can also be internally applied to spools, and can be used as a lining for riser clamps or as an external antifouling coating by the application of a 3 mm thick outer layer of pcp containing copper nickel granules this. Youngjae yoo at korea research institute of chemical technology. Chapter 3 structure characterization in the science and technology versa. Difference between natural rubber and synthetic rubber. Epdm rubber is a type of synthetic rubber that is used in many applications. Its the customers responsibility to evaluate parts prior to use. Epdm is a polymerization made of ethylene, propylene and a diene monomer. Epdm is the designation given for a saturated polymer chain of the polymethylene type, consisting of ethylene, propylene, and diene. When epdm rubber is chemically resistancecured, it resists polar solvents, alkalis and acids. Sheet epdm was very costeffective and relatively easy to install.
Conservation technology epdm will outperform and outlast most other quality waterproofing products on the market, including metals, rubber modified bitumens torchdown or selfstick rubber roofs, thermoplastics tpo, hypalon, polypropylene, as well as other types of epdm rubber. Fda, nsf61, and 3a sanitary compliant chloramine resistant good heat and compression resistance. Firestones synthetic rubber compound is the foundation for rubbergard epdm, the industrys premiumgrade epdm roofing membrane available in both white and black. As the polymer chains of both epm and epdm have completely saturated hydrocarbon backbones, excellent ozone resistance and very good resistance to heat and oxidation are achieved. Center of exact science and technology, department of physics and. 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. The science and technology of rubber polymer physics. Diene termonomer type and epdm properties rubber chemistry. The transverse fiber epdm rubber gives the belt an operational temperature range of 40f to 248f. Also some other letter can create a part of abbreviation, and these closer characterize appropriate rubber, e. Many of the rubber manufacturing facilities in the united states produce pneumatic tires for automobile, trucks, airplanes and farm machinery. This seminar is part of a more comprehensive set of courses offered for general practice and operations in the rubber industry.
Our investment in increasing capacity and developing new grades delivers the longterm supply reliability our customers depend on. Resistance data was taken from parkers 2008 edition of the parker oring handbook. Dec 04, 2016 the main difference between natural rubber and synthetic rubber is that natural rubber is a natural biosynthesis polymer obtained from a plant called hevea brasiliensis, whereas synthetic rubbers are manmade polymers under controlled conditions. It has been and continues to be one of the most widely used and rapidly growing synthetic rubbers. Many eriks rubber profiles and moulded parts can be ordered directly in our web shop in various materials. It took me 3 days to get the job done as i was working alone. Description the firestone rubbergard epdm membrane is a 100% cured roofing membrane made of a synthetic rubber ethylenepropylenediene terpolymer. Epdm liquid rubber is very similar to traditional epdm makeup. Epdm or ethylene propylene diene monomer is a specific type of synthetic rubber. Ethylene propylene rubber epdmepm epm is a copolymer of ethylene and propylene. Elastomers like ethylenepropylene diene monomer rubber epdm.
However, rubber processing technology is different in certain respects, and the rubber industry is largely separate from the plastics industry the rubber industry and goods made of rubber are dominated by one product. Rubber material selection guide epdm or ethylene propylene. Eriks is a leading company in the field of rubber technology for practically all industries. Wras approved potable water grades are also available. The sheet is made of two plies of standard compound.
Oesbr is oil extended styrenebutadiene rubber, lsbr means styrenebutadiene rubber produced by. The eriks web shop is available in the united kingdom, the netherlands, belgium, france, germany and switzerland. Epdm rubber ethylene propylene diene monomer rubber is an elastomer which is characterized by wide range of applications and good chemical resistance. Our highquality synthetic rubber compound is the foundation for rubbergard, the industrys premiumgrade epdm roofing membrane. Building on a fiftyyear history of performance, dows advanced molecular catalyst amc and process technology advancements enable highly tailored design of epdm molecular architecture including, composition, molecular weight and long chain branching lcb. More differences between these two types of rubbers will be discussed in this article. Other ingredients include carbon black, oil and vulcanization systems. Technical information epdm rubber gaskets kastrade. Once the liquid epdm cures will result in a smooth seamless membrane. 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. Guard your building with the industrys premiumgrade epdm roofing membrane.