Oatey 31199 PTFE Tape, 1/2-Inch x 260-Inch Provides a clean, positive seal on threaded connections A high-density product that resists tearing and stretching for easy, efficient application Available carded or packaged bulk on spools Complies with military specification a-a-58092 and UL 31 ro Flexible blue, non-hardening, non-separating, non-toxic paste, no odor, easy clean-up Use on PVC, CPVC, ABS, polyethylene, polypropylene, iron, steel, copper or brass threads up to and including 2-Inch Withstands up to 3,000 PSI on gases from -50 to +400F and 10,000 PSI on liquids from -50 to +500F For use with water, steam, caustics or dilute acid lines of PVC, CPVC, ABS, cycolac, polypropylene, iron, steel or copper 3 mils thick, 0.7 grams/cubic centimeter density