Hercules® Real Tuff™ is a heavy-duty white PTFE thread sealant that uses a unique system of fine-grain PTFE particles to fill cracks and thread imperfections. Designed for use in high pressure applications, this smooth-setting sealant forms durable, leak-free seals so that joints can be tested and put into service immediately. It can be used on lines carrying water, steam, caustics and dilute acids and is compatible with all metals and PVC, CPVC and ABS plastics. Behold the power of Hercules®, products built to last and trusted by plumbers to withstand even the toughest conditions.

• 8 oz. thread sealant
• Forms leak-free joints that can be used immediately
• Compatible with all metals, PVC, CPVC and ABS plastics
• Fills gaps and imperfections in plastic and metal pipes and fittings
• Low odor, non-hardening, non-separating and non-toxic
• Suitable for use with lines carrying air, drinking water and gas, except for oxygen
• Withstands up to 12,000 PSI on liquids and up to 2,600 PSI on gases from -50° to 550°F
• Will not run or drip from joints and contains no heavy metals or volatile solvents
• Holds tight against expansion and contraction and resists strong acids, alkalis and ketones
• NSF listed