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Rectorseal - No. 5® Pipe Thread Sealants 25631

Rectorseal - No. 5®  Pipe Thread Sealants  25631

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Sealants that are thread pipe protectors.
  • Soft-set, gradual drying sealants which greases, seals, and cares for threaded pipe and fittings.
  • Sealing products that are best for threaded stainless steel pipe, iron, brass, copper, aluminum, and galvanized steel, PVC, CPVC, polyethylene, and fiberglass reinforced.
  • Best applied to numerous liquids and gases, including filtered water application.
  • 15.0°F minimum and 400.0°F maximum temperatures.
  • In Stock
Sealants that are thread pipe protectors. Best quality and selection. Fast shipping. 60 years of satisfied customers.
$7.20 InStock NewCondition


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Product Features - Rectorseal - No. 5® Pipe Thread Sealants 25631

Call us at 1-877-775-5939 to learn about this product.
Free material samples of this product may be available.


Base Type Teflon
Standard RoHS/CFIA
Maximum Application Temperature 400°F
Minimum Application Temperature -15°F
Manufacturer Name Rectorseal

    Product Review

    will this harden when it drys?

    I work at a test lab and we have a flame cabinet with a bunsen burner inside. it has a natural gas line running to it. we have to be able to adjust the height of the flame to different sizes. we just had the cabinet rebuilt and now we have a slow gas leak coming out where we adjust the flame height. so my question would be, can i put this on our threaded adjustment rod to stop the leak, but not have it harden over time so we can still turn the adjuster?
    Asked by: andrew
    I'm glad you took the time to explain how you would use this product. Although this thread sealer is not suppose to harden over time I am concerned about it being in close proximity with an open flame. Upon reading the manufacturer's SDS sheet it points out - in Section 10 Stability and Reactivity - the following: STABILITY: Stable CONDITIONS TO AVOID: Heat, sparks, open flames, and strong oxidizing. Temperatures above 500 F (260 C). INCOMPATIBILITY (MATERIALS TO AVOID): Gaseous oxygen, strong oxidizing materials, molten alkali metals. HAZARDOUS DECOMPOSITION PRODUCTS: CO, CO2 and fragmented hydrocarbons. HAZARDOUS POLYMERIZATION: Will not occur. Due to is being used near an open flame I would not recommend this product for your needs. To access the full SDS sheet please follow the below link. http://www.rectorseal.com/web-media/RectorSeal-No-5.html
    Answered by: Valerie
    Date published: 2016-06-18
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