Wal-top seal OTP Taiwan imported acid production of EPDM o-rings can be widely used in drinking water treatment, sewage treatment, other seals, and so does not contain oil occasions, EPDM itself very superior performance in high temperature, wear resistance, corrosion resistance, and so have a very good reflection of the amount of deformation pull itself up to more than 200%. But the drawback is that not come into contact with oil, such as gasoline, diesel fuel, hydraulic oil, etc. are not to be reached. The medium containing oil tired substance, then make O-ring expands or eroded. EPDM EPDM rubber is conjugated by ethylene, propylene and diene polymerization. EPDM EPDM main polymer chain is fully saturated, this feature makes EPDM EPDM O-ring is resistant to heat, light, oxygen, etc., in particular ozone. 2 / EPDM rubber O-ring feature, EPDMO-ring, EPDM O-ring: 1) EPDM EPDM O-ring has a remarkable resistance to oxidation, ozone and anti-erosion; 2) EPDM EPDM O-ring has an excellent anti-aging ability, was praised for not cracking rubber; 3) EPDM O-ring has good flexibility and resistance to compression deformation; 4) EPDMO seals Circle has a low density and high filling; 5) because it is EPDM EPDM O-ring is essentially non-polar, so EPDM EPDM O-rings on the polar solvents and chemicals with strong resistance and excellent insulation characteristics, but less dense water-based. In terms of chemical acid corrosion generally fluorine rubber or EPDM O-ring, simply the difference between the two: fluorine rubber resistant to chemical energy is broader, fluorine rubber resistant to temperature will be higher, you can reached 240 degrees, and EPDM O-rings can only reach 150 degrees, fluorine rubber oil tired medium can, and EPDM not. EPDM has the advantage of lower prices, and more for sewage treatment, or other water treatment products. EPDM rubber EPDM English name abbreviation EP. EPDM common color is black, also can be made into any color barrier, as long as you provide a sample color number or company Wal-top that you can produce it. EPDM rubber containing no double bond in the main chain is fully saturated straight-chain structure, a diene Jing its side chain, and can be vulcanized with sulfur. EPDM has excellent resistance to aging, ozone resistance, weather resistance, heat resistance (120 ℃ environment in long-term use), chemical resistance (such as alcohols, acids, alkalis, oxidizing agents), but does not resistant to aliphatic and aromatic solvents erosion. EPDM rubber has the lowest density is high filling properties, but lack of self-adhesive and mutual adhesiveness. In addition, EPDM has outstanding resistance to steam performance, such as the production of steam-resistant diaphragm seal products. EPDM has been widely used in washing machines, televisions and accessories doors and windows sealed products, or more complex profile strip production. Acid o-rings, o-rings and alkali resistance in the trench initial deformation (interference) its sealing capability is very important: 1. Obtain initial sealing contact ability 2. Compensation product tolerance (in the gaps, connection between the two) 3. 4. compensation guarantee a certain friction-ring compression set 5.O compensate for wear than providing information on EPDM EPDM o-rings from Taiwan Wall OTP top physical characteristics, its main acid characteristics, in addition to NBR nitrile rubber o-rings, VITON fluorine rubber o-rings, SIL silicone silicone rubber o-rings, AEM butyl rubber o-rings, etc. Other materials o-ring .