POLY-TEMP 36536 Anti-Seize Ceramic Filled PTFE Thread Seal Tape, 600" Length x 1/2" Width x 3.5 Mil Thickness, Cream The Combination of PTFE along with Copper Powders provide the ultimate protection from oxidative chemicals and protects against rust and corrosion, Ideal for all tapper thread connections PTFE's high lubricity makes for easy assembly, only three wraps needed for most applications, excellent pipe thread sealant up to 550F Copper filler can withstand temperatures up to 1800F for anti-seize applications, pressures up to 10,000psi Never dries out, unlimited shelf life, Extremely versatile lubricant and sealant. RoHS compliant