Rectorseal No. 5 Thread Sealant - 25790

Rectorseal No. 5 Thread Sealant - 25790

Restore a reliable soft-set seal on threaded pipe joints with this universal/spec-match Rectorseal No. 5 Thread Sealant - 25790. This soft-setting pipe thread sealant seals, lubricates, and protects threads while allowing immediate system pressurization in many service applications.

25790 is Rectorseal No. 5 thread sealant, a universal/spec-match multi-purpose compound used when technicians need a proven brushable paste for metal and compatible plastic threaded pipe. It is often chosen when easy breakout later and dependable sealing today are both important.

Compatibility: Threaded metal and compatible plastic pipe connections for plumbing, HVAC, hydronic, and mechanical service where a soft-set paste sealant is specified.

Please confirm the fitting type, thread compatibility, sealant type, and intended service application before ordering.

Is it time to replace?

• Common Symptoms: Persistent seepage at a threaded fitting, hard makeup on dry threads, or recurring leaks after older joint compound has dried out.
• Visible/Sensory Cues: Dried paste in the threads, dampness around the connection, joint compound that skins over in storage, or fittings that squeak and bind during assembly.

Pro Tip: Brush the sealant onto clean male threads only and keep the first thread mostly clear so excess compound is less likely to enter the line.

Technical Specifications