Sterling Seal ORTFE327x25 Number-327 Standard Teflon O-Ring, Outstanding Weather Resistance, Polytetrafluoro-Ethylene, 1-3/4" ID, 2-1/8" OD (Pack of 25)

Sterling Seal & Supply, Pure Teflon O Rings consist of polytetrafluoroethylene (PTFE), a solid polymer that is considered to be one of the world's most non-sticky polymers. PTFE, can withstand aggressive environments, high temperatures, high pressures and dry running that traditional radial shaft seals made of elastomeric sealing materials cannot withstand. ORTFE327x25

• Sterling Seal & Supply, Pure Teflon O-Rings are highly resistant to extreme chemical attacks and have a high resistance to the degrading effects of exposure to such solvents as acetone, MEK, and xylene
• Temperature Range: -300° to +450°F. Hardness (Shore A): 98
• Sterling Seal & Supply TFE O Rings possess average elastomer characteristics of 2,500 to 3,500 psi tensile strength, and 300% elongation, they are tough, impact resistant, low friction, non-twisting performers over an extremely wide temperature range
• Special care must be taken during handling and installation of PTFE seal. They wont stretch fit as traditional elastomeric O Rings
• Because of its poor tear resistance, during O-ring installation particular care should be taken to avoid nicking or scratching Teflon, as imperfections will cause O-ring leakage