Tru-Blu® Pipe Thread Sealant is a fast-dry, PTFE-enhanced paste designed to lock and seal vibration-prone NPT connections. Whether you’re working on refrigeration lines, industrial piping, or general plumbing, Tru-Blu® delivers a flexible set that withstands vibration and maintains leak-free performance. Certified to NSF/ANSI 61-G, this blue sealant ensures positive engagement on every thread, then breaks out cleanly for future servicing.

Ideal for use on a wide range of materials, Tru-Blu® lubricates during assembly and resists wash-out, corrosion and galling—making it the go-to choice for HVAC, refrigeration, water, gas and chemical applications.

Key Features

• Vibration-resistant formula locks out leaks on NPT fittings
• PTFE-enhanced for superior lubrication and break-out
• Fast-dry, flexible set resists wash-out and corrosion
• Certified NSF/ANSI 61-G for potable water service
• Bright blue color for easy inspection