Sterling Seal PTFE-1x24-RDx25 PTFE Teflon Rod, 1" Diameter x 24" (Pack of 25) Sterling Seal & Supply Teflon PTFE Rod surpasses most plastics when it comes to chemical resistance and performance in extreme temperatures Sterling Seal & Supply Teflon PTFE Rods resist most solvents and is an excellent electrical insulator Sterling Seal & Supply Teflon PTFE Rods can be used outdoors Temperature Range : Minimum -350F to Maximum 500F