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Rectorseal 25551 - #5 Multi-Purpose Pipe Thread Sealant

Item: 25551
MFR: 25551
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RectorSeal® No. 5® is our most popular thread sealant. It has withstood the test of time in a variety of uses and is widely known as the "standard of the industry." RectorSeal® No. 5® is a soft setting, slow drying thread sealant made from special inert fillers dispersed in an oleo resinous base to facilitate its application to threaded pipe connections. RectorSeal® No. 5® is a unique, versatile and reliable sealant that is non-toxic in accordance with NSF Standard 61. In addition, it is Underwriters Laboratories Inc. (UL) classified, listed under the Uniform Plumbing Code (IAPMO) File No. 1282, and it is approved and listed with the Canadian Standards Association (CSA).

  • For use with potable water (hot or cold)
  • Lead free and contains no other metals
  • Soft setting, slow drying
  • Brushable from 20 degree F to 140 degree F
  • Will not dry out in the can
  • Multipurpose - wide range of service uses
  • Immediate pressurization on pipe up to 2" and 100 psi
  • For pressure up to 12,000 psi (liquids) and 2,600 psi (gases)
  • Smooth easy application
  • Permits easy break out with no damage to threads
  • Economical - requires only a small amount
  • Reduces friction to allow tighter joint makeup
  • Lubricates and protects threads


NameRectorseal 25551 - #5 Multi-Purpose Pipe Thread Sealant
Gemaire Item Number25551
Manufacturer Product Number25551
SKU - PIM Number1374511248144
ERP Number96828
Unit of MeasureEACH
Weight0.9 Pound (lb.)
Length2.5 Inches (in)
Width2.5 Inches (in)
Height3.6 Inches (in)
Hazardous MaterialNo
EPA Cert RequiredNo
Country of OriginUSA
Service Temperature20°F to 140°F (-6.6°C to 60°C)
Application Temperature-40°F to 125°F (-40°C to 51.6°C)
CoveragePiping up to 2" diameter
Dry TimeSoft Set/Slow drying
Flash Point> 300° F
Shelf Life2 Years
Solids ContentDNA
Storage Temperature<500°F (260°C)
IncludesBrush Top
ApplicationLubricates and protects threaded pipe and fittings. Can be pressurized immediately up to 100 psi for piping up to 2" dia. Ideal for wide variety of fluids and gases including potable water.
CompositionDiacetone Alcohol
For Use WithPVC, Polyethylene, Stainless Steel, Copper, Brass, Aluminum, Galvanized Steel, Iron, RTPR
FunctionsThread Sealant
Size8 Ounce
StandardsCSA, NSF, UPC,UL
Temperature Range20°F to 140°F (-6.6°C to 60°C)
TypeThread Sealant
Volume1/2 pt.
UL ListedYes
UL RecognizedYes
GEM - Case Quantity