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Blue pipe thread sealant in a 16 fl oz brush-top can

RECTORSEAL

RECTORSEAL 31431 Tru-Blu Blue Vibration Resistant Pipe Thread Sealant 16 fl oz

SKU CH-7W85-FCHFD

Blue non-hardening pipe thread sealant resists vibration and seals air, fuel, gas, steam and water up to 2,000 psi gas and 8,000 psi liquid from 20 °F to 140 °F

  • Weight1.49
  • Non-hardening sealant resists vibration loosening on threaded joints
  • Withstands gas pressures up to 2,000 psi for secure connections
  • Handles liquid pressures up to 8,000 psi in piping systems
  • Operates reliably from 20 °F to 140 °F across seasons
  • Brush-top 16 fl oz can enables quick, mess-free application

Vibration-Resistant Thread Sealant

RectorSeal 31431 Tru-Blu is a non-hardening pipe thread sealant designed for industrial plumbing systems subject to mechanical vibration. The blue formula remains pliable after application to maintain a positive seal on threaded joints carrying air, water, steam, natural gas, diesel fuel, kerosene, and other listed fluids. It suits maintenance crews and pipefitters who need reliable leak prevention on metal piping.

Brush-Top Can With Wide Temperature Range

The 16 fl oz brush-top container allows direct application to threads without separate tools, simplifying field work and bench assembly. The compound functions continuously from 20 Degrees F up to 140 Degrees F, covering common ambient and process conditions in commercial and industrial settings. Weighing 1.49 units, the can is portable for service vehicles and job-site toolboxes.

Pressure Ratings Define Safe Use

The sealant withstands up to 2,000 psi for gases and 8,000 psi for liquids, setting clear limits for system designers and installers. Because the material never fully hardens, joints can be disassembled for maintenance without damaging threads or requiring heat. It is not intended for buyers who need a permanent adhesive bond or a sealant rated for pressures beyond the stated maximums.

Highlights

  • Non-hardening sealant resists vibration loosening on threaded joints
  • Withstands gas pressures up to 2,000 psi for secure connections
  • Handles liquid pressures up to 8,000 psi in piping systems
  • Operates reliably from 20 °F to 140 °F across seasons
  • Brush-top 16 fl oz can enables quick, mess-free application

Specifications

Weight1.49
BrandRectorSeal

Questions about this item

What is the maximum gas pressure the RectorSeal 31431 sealant can handle?

The sealant is rated for gases up to 2,000 psi and liquids up to 8,000 psi, so it covers most residential and light-commercial piping systems.

What size brush-top can does the RectorSeal 31431 come in?

It ships in a 16 fl oz brush-top can that weighs 1.49 lb, sized for one-handed use on job sites.

How do you apply RectorSeal 31431 without over-coating the threads?

Brush a thin, even coat on male threads only, leaving the first two threads bare; the non-hardening formula stays pliable so excess inside the joint can foul valves or restrict flow.

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