EPDM O-rings - KTW, W270, WRC

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What is EPDM?

EPDM is the abbreviation of Ethylene, Propylene, Diene and Monomer and is a group of synthetic rubbers of elastomers. It’s made through the polymerization of tene, propene and a diene, this is an unsaturated hydrocarbon with two double bonds.

This makes EPDM a terpolymer, this is a polymer obtained from three monomers.

EPDM rubber has been used since around 1963 and finds many applications in, for example, construction (roof sealing), the automotive sector (sealing rings, sealing strips on windows and doors), belts, conveyor belts and hoses (for example garden hoses), electrical insulation, pond liner and so on. EPDM is marketed under multiple brand names. EPDM roof coverings can be installed fire-proof in accordance with NEN6050. In the Netherlands, roofing systems must comply with the BroofT1 qualification, which means that an EPDM roofing film must be applied that is fly-proof. EPDM pond liner does not meet this requirement.

The ratio between the amounts of the different monomers used largely determines the properties of the EPDM polymer. The ethylene content can vary from around 45 to 80%. Lower ethylene levels yield a rather amorphous polymer; higher ethylene levels a more crystalline polymer. The diene content can range from approximately 1 to 10/12%. With a higher diene content, a higher degree of vulcanization can be obtained, i.e. a "firmer" rubber.

 

What is EPDM used for?

  • In construction
  • Roof covering
  • Automotive
  • Conveyor belts
  • Sealing
  • Hoses

The advantages of EPDM:

  • It has a temperature working range from -75 to +125 C
  • It is flexible and ages hardly
  • Good resistance to many acids
  • Excellent resistance to heat, water and steam

The downside of EPDM:

  • Not resistant to chlorine
  • It’s not recommended for use in conditions with gasoline, petroleum, fats and hydrocarbon environments

On this page we offer our range of safe for drinking water O-Rings which are certified in KTW, W270, WRC. Search for your specific O ring by using the filters on the left of the page or take your time and browse our wide range of our products. When you can not find the product you are looking for in our safe for drinking water O-Rings made from EPDM, please send us a Direct Enquiry. Together we can discuss the specifications and find the right product for you.

171 products
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ProductDimensionsMaterialHardness (Shore A)CertificationStock
O-Ring 45x7 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-45x7-EPDM69 O-ring Black45 x 7EPDM-EP-EDT-EPR70 Shore AJa60 icon
O-Ring 55x4 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-55x4-EPDM69 O-ring Black55 x 4EPDM-EP-EDT-EPR70 Shore AJa57 icon
O-Ring 67x4 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-67x4-EPDM69 O-ring Black67 x 4EPDM-EP-EDT-EPR70 Shore AJa56 icon
O-Ring 360 X 5 EPDM-EP-EDT-EPR70 Black KTW. W270. WCR O-ring Black360 x 5EPDM-EP-EDT-EPR70 Shore AJa57 icon
O-Ring 432 X 8 EPDM-EP-EDT-EPR70 Black KTW. W270. WCR O-ring Black432 x 8EPDM-EP-EDT-EPR70 Shore AJa59 icon
O-Ring 506.86 X 6.99 EPDM-EP-EDT-EPR90 Black KTW. W270. WCR O-ring Black506.86 x 6.99EPDM-EP-EDT-EPR90 Shore AJa52 icon
O-Ring 70 X 5 EPDM-EP-EDT-EPR55 Black KTW. W270. WCR O-ring Black70 x 5EPDM-EP-EDT-EPR55 Shore AJa52 icon
O-Ring 98 X 8 EPDM-EP-EDT-EPR70 Black KTW. W270. WCR O-ring Black98 x 8EPDM-EP-EDT-EPR70 Shore AJa50 icon
O-Ring 156x10 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-156x10-EPDM69 O-ring Black156 x 10EPDM-EP-EDT-EPR70 Shore AJa59 icon
O-Ring 32 X 6 EPDM-EP-EDT-EPR80 Black KTW. W270. WCR O-ring Black32 x 6EPDM-EP-EDT-EPR80 Shore AJa50 icon
O-Ring 225 X 5 EPDM-EP-EDT-EPR95 Black KTW. W270. WCR O-ring Black225 x 5EPDM-EP-EDT-EPR95 Shore AJa59 icon
O-Ring 276 X 7 EPDM-EP-EDT-EPR70 Black KTW. W270. WCR O-ring Black276 x 7EPDM-EP-EDT-EPR70 Shore AJa55 icon
O-Ring 55x5.33 EPDM  Shore A - Black KTW. W270. WCR - ORSV2-55x5.32-EPDM O-ring Black55 x 5EPDM-EP-EDT-EPRJa55 icon
O-Ring 46.99x5.33 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-46.99x5.33-EPDM69 O-ring Black99 x 5EPDM-EP-EDT-EPR70 Shore AAP55 icon
O-Ring 582.68x6.99 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-582.68x6.99-EPDM69 O-ring Black68 x 6EPDM-EP-EDT-EPR99 Shore AAP56 icon
O-Ring 584.4x8 EPDM  Shore A - Black KTW. W270. WCR - ORSV2-584.4x7-EPDM O-ring Black4 x 8EPDM-EP-EDT-EPRJa57 icon
O-Ring 73x5 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-73x5-EPDM69 O-ring Black73 x 5EPDM-EP-EDT-EPR70 Shore AJa58 icon
O-Ring 144x3 EPDM  Shore A - Black KTW. W270. WCR - ORSV2-144x3-EPDM O-ring Black144 x 3EPDM-EP-EDT-EPRJa59 icon
O-Ring 513x10 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-513x10-EPDM69 O-ring Black513 x 10EPDM-EP-EDT-EPR70 Shore AJa57 icon
O-Ring 62x4 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-62x4-EPDM69 O-ring Black62 x 4EPDM-EP-EDT-EPR70 Shore AJa60 icon
O-Ring 255x5 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-255x5-EPDM69 O-ring Black255 x 5EPDM-EP-EDT-EPR70 Shore AJa50 icon
O-Ring 329.57x6.99 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-329.57x6.99-EPDM69 O-ring Black57 x 6EPDM-EP-EDT-EPR99 Shore AAP54 icon
O-Ring 62x11 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-62x11-EPDM69 O-ring Black62 x 11EPDM-EP-EDT-EPR70 Shore AJa53 icon
O-Ring 85 X 4 EPDM-EP-EDT-EPR70 Black KTW. W270. WCR O-ring Black85 x 4EPDM-EP-EDT-EPR70 Shore AJa50 icon
O-Ring 342 X 6 EPDM-EP-EDT-EPR95 Black KTW. W270. WCR O-ring Black342 x 6EPDM-EP-EDT-EPR95 Shore AJa53 icon
O-Ring 430.66 X 5.33 EPDM-EP-EDT-EPR70 Black KTW. W270. WCR O-ring Black430.66 x 5.33EPDM-EP-EDT-EPR70 Shore AJa57 icon
O-Ring 506.86x6.99 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-506.86x6.99-EPDM69 O-ring Black86 x 6EPDM-EP-EDT-EPR99 Shore AAP53 icon
O-Ring 85x4 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-85x4-EPDM69 O-ring Black85 x 4EPDM-EP-EDT-EPR70 Shore AJa56 icon
O-Ring 70x5 EPDM  Shore A - Black KTW. W270. WCR - ORSV2-70x5-EPDM O-ring Black70 x 5EPDM-EP-EDT-EPRJa54 icon
O-Ring 513 X 10 EPDM-EP-EDT-EPR75 Black KTW. W270. WCR O-ring Black513 x 10EPDM-EP-EDT-EPR75 Shore AJa59 icon
O-Ring 582.68 X 6.99 EPDM-EP-EDT-EPR80 Black KTW. W270. WCR O-ring Black582.68 x 6.99EPDM-EP-EDT-EPR80 Shore AJa59 icon
O-Ring 612x7 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-612x7-EPDM69 O-ring Black612 x 7EPDM-EP-EDT-EPR70 Shore AJa52 icon
O-Ring 384 X 6.99 EPDM-EP-EDT-EPR70 Black KTW. W270. WCR O-ring Black384 x 6.99EPDM-EP-EDT-EPR70 Shore AJa50 icon
O-Ring 484 X 6.99 EPDM-EP-EDT-EPR80 Black KTW. W270. WCR O-ring Black484 x 6.99EPDM-EP-EDT-EPR80 Shore AJa56 icon
O-Ring 170 X 10 EPDM-EP-EDT-EPR70 Black KTW. W270. WCR O-ring Black170 x 10EPDM-EP-EDT-EPR70 Shore AJa56 icon
O-Ring 225 X 4 EPDM-EP-EDT-EPR70 Black KTW. W270. WCR O-ring Black225 x 4EPDM-EP-EDT-EPR70 Shore AJa53 icon
O-Ring 170x6 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-170x6-EPDM69 O-ring Black170 x 6EPDM-EP-EDT-EPR70 Shore AJa52 icon
O-Ring 24.2x3 EPDM - 70 Shore A - Black KTW. W270. WCR - ORSV2-24.2x3-EPDM69 O-ring Black2 x 3EPDM-EP-EDT-EPR70 Shore AJa54 icon
O-Ring 237x6.99 EPDM  Shore A - Black KTW. W270. WCR - ORSV2-237x6.98-EPDM O-ring Black237 x 6EPDM-EP-EDT-EPRJa59 icon
O-Ring 484x6.99 EPDM  Shore A - Black KTW. W270. WCR - ORSV2-484x6.98-EPDM O-ring Black484 x 6EPDM-EP-EDT-EPRJa52 icon