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Epdm seals have what advantage? - - - - - - Dongguan DongSheng di sealing products co. , LTD

by:ORK      2020-07-27
One, the excellent ozone resistance and oxidation resistance of epdm seal does not contain a double bond, the molecular structure of the main chain can completely resist ozone in the air attack. In the environment of the ozone concentration is 100 PPHM, 2430 hours not appear crack ( Butyl rubber seals 500 hours cracks, neoprene 40 hours checking) , under the condition of 50 PPHM, static pull 30%, 150 hours not cracked, Butyl rubber 2 hours checking) 。 Article 2, excellent weatherability epdm seal can be long in the sun, damp, cold under the natural environment of use. Vulcanizates containing CB three years there will not be a crack in the sun insolates, physical and mechanical properties change is very small. Three, excellent heat-resistance epdm seals can be used under the condition of 120 ℃ for a long time, the highest working temperature 150 ℃, starts to break down when higher than 150 ℃, when adding suitable age resister or peroxide, quinone vulcanizing system, the intermittent heat resistance up to 315 ℃. This feature is determined by its saturation of main chain structure. Four, chemical resistance, resistance to a variety of epdm seal polar solutes, such as brake fluid, strong acid, strong alkali, alcohol, etc. ; Nonpolar solutes resistance is poorer, hydrocarbon solvent such as gasoline, etc. , by using high molecular oil filling cases, medium oil resistance can be obtained. Five, epdm for almost all the proportion of synthetic rubber in the lightest one ( Also below the plasticization of PVC) , so its finished product has a lighter weight. It also determines its have broad application prospects. Epdm seal in addition to the above advantages, and epdm density is small, it has excellent electric properties, good stress - Strain characteristics, good wear resistance, excellent moisture resistance and resistance to water vapor. Products are widely used in residential buildings, commercial buildings, stadiums and bridge and pier anticollision fender, etc. 。 。 。 。 。 17 years of rubber seal factory, provide one-stop processing customized various seals, sealing strip, rubber seal products, the company introduced advanced intelligent production equipment and testing equipment, automatic batching system, mixer line, extrusion line, purifying workshop, fully automatic sorting equipment, automatic packaging machine, etc, more than 200 sets of equipment, vulcanization unit covers from 50 t to 1000 t, large product customization!
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