Product Name: High Heat / Good Chemical Resistance Elastomer FKM/FPM Rubber O-Ring for Industrial Sealing Model NO.: ysk2002005 Standard: Standard, Nonstandard, Customsized Shape: O-Ring Performance: Temperature Type: Oil Seal Application: Valve Material: VITON Trademark: OEM Transport Package: 100PC or 1000PC Per PP Bag Carton for Outside Pack Specification: ID1.0mm ~ 20000mm Origin: China HS Code: 4016931000 Product Description What is FKM O ring? FKM is a family of fluoroelastomer material defined by the ASTM International standard D1418..... Fluoroelastomers are more expensive than neoprene or nitrile rubber elastomers they provide additional heat and chemical resistance.Is FKM sames as viton?FPM is the ISO designation, FKM is the ASTM designation. Viton, Dai-El and technoflon are brands for FPM polymers.All of the designations stand for one single base material, which is fluoro rubber. This rubber is used in applications that need O-rings that are resistant to high temperatures and chemical attacks.MaterialFKM/FPM Shore 75AColorBlack/Brown/GreenHardnessShore 75AProcessing methodComperssion moldingTypeO-Ring SealSizeStandard or non-standardPlace of OriginNingbo ChinaProduct NameO-ringFeatureSealLogoCustom LogoMOQ100PCSWorking lifeAccording to work environmentCustom OrderAcceptTemperature-30ºC-200ºCBrand NameOEMFree SampleYES