EPDM,Ethylene Propylene Diene Rubber,has good heat resistance,Ozone and aging resistance properties.EPDM o ring is very commonly used in brake fluids,hot waters,cooling systems and washing machines.Technical Data:Operating temperature: -40 / +150 ℃. Special formulas EPDM can resistance from -50℃ to 170℃Dimensions:?Standard: AS568, BS1806,ISO3601,JIS B2401,DIN3771,NFT 47-501Non-standard: Small size EPDM o-rings, such as 0.2mm inner diameter.Big size EPDM o-rings available.Color:Black,green,brown,red,etc.?Hardness: 50 shore A, 60 shore A,70 shore A,80 shore A,90 shore A.Product types:Rubber o rings:?NBR o-ring,Silicone MVQ o-ring,EPDM o ring,FKM/FPM o ring,CR o ring,SBR o rings,nitrile orings,FFKM o-rings,PU o-rings,PTFE o-ring,rubber o-ring cord,x-ring,d-ring,o-ring set,excavator seal kitPTFE encapsulated o-ring:FEP PFA silicon o-ring,FEP PFA FKM o-ring,PFA VITON o ring,FEP PFA EPDM o ring, PFA FEP stainless spring o ring,FEP PFA hollow silicon o ring,PFA FEP hollow FPM o ring,FEP PFA camlock gasket,etcHydraulic seals:rod piston seal,rod seal,piston seal,wiper dust seal,rotary shaft oil seal,spring energized seal,guiding strip,wear ringPneumatic seals:Pneumatic rod piston seal,pneumatic rod seal,pneumatic piston seal,pneumatic rod wiper seal,pneumatic cushioning seal,pneumatic seal kitsOil Seals:TA,TB,TC,SA,SB,SC,power steering oil seals,seal group/Floating seal, auto car sealsRubber seals:Rubber u cups,rubber lip seal,V ring A,v ring S,v ring L, standard and non-standard rubber seal available. http://www.ostasos-seals.com/o-ring/o-ring-rubber/epdm-o-ring.html