Tapes Anti Seize EP 6501 Material Size 1/ 2â X 600â ( 12.7mm x 15.24m) Size 3/ 4â X 600â ( 19.0mm x 15.24m) Thickness Temp. Max* PTFE Copper C650012600 C750019600 0.0035â ( 0.90mm) 450° to 2, 192° F ( 268° to 1, 200° C) PTFE Ceramic C660012600 C760019600 0.0035â ( 0.90mm) 450° to 2, 780° F ( 268° to 1, 526° C) PTFE Nickel C670012600 C770019600 0.0035â ( 0.90mm) 450° to 2, 408° F ( 268° to 1, 320