Real-Tuff 1.1 fl oz paste thread sealant that contains a unique system of fine grain PTFE particles specifically designed to fill cracks and tiny thread imperfections. Real-Tuff's formula is non-flammable and contains no heavy metals or volatile solvents. It can be used on all metals, PVC, ABS, and CPVC plastics, and is safe for drinking water lines. Real-Tuff is suitable for use with all liquids and gases except for oxygen. It resists strong acids, alkalis, and ketones. Real-Tuff has a maximum working hydraulic pressure of 12,000 psi, can withstand temperatures from -200°F to 500°F, and holds tight against expansion and contraction. Real-Tuff forms leak-free joints that can be used immediately. It will not run or drip from joints and soft sets with no cure time required.