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The Rectorseal Corporation 25790 is a pipe thread sealant packaged in a 1.75 oz tube, designed for sealing threaded pipe connections in plumbing, HVAC, and gas piping applications. Thread sealants of this type fill and lock the voids between male and female pipe threads, preventing leaks from liquids and gases under pressure. The compact tube format makes it practical for field use during service calls and new installations. Licensed plumbers, pipefitters, and HVAC technicians are the primary installers of this product.
This pipe thread sealant is suited for residential and light commercial applications where threaded connections require a reliable, pressure-resistant seal. Typical use cases include water supply lines, gas lines, compressed air lines, and hydronic heating connections. The small 1.75 oz tube is well suited for service technicians carrying a minimal tool kit on routine calls.
Designed as an OEM-style replacement and general-use pipe thread sealant for threaded pipe connections across plumbing, HVAC, and gas piping systems.
Application is typically performed by licensed plumbers, pipefitters, or HVAC technicians in accordance with local plumbing codes and the International Fuel Gas Code (IFGC) where gas lines are involved. Shut off the water supply or gas supply and depressurize the line before disassembling any threaded connection. Apply sealant to the male threads only, avoiding the first thread to prevent compound from entering the line. Allow appropriate cure time before pressurizing the system and testing for leaks.
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