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RectorSeal No. 5 pipe thread sealant is a soft-set, slow drying compound which seals, lubricates, and protects threaded pipe and fittings. It can be pressurized immediately for piping up through 2″ and 100 psi(for natural gas, air and water only) and is ideal for application with a wide variety of fluids and gases, including potable water applications. Recommended for use on threaded galvanized steel, iron, brass, copper, aluminum, stainless steel, polyethylene, fiberglass reinforced and PVC pipe. Not recommended for use with ABS pipe or Oxygen.
From the Manufacturer
RectorSeal No. 5 pipe thread sealant is a soft-set, slow drying compound which seals, lubricates, and protects threaded pipe and fittings. It can be pressurized immediately for piping up through 2-Inch and 100 psi(for natural gas, air and water only) and is ideal for application with a wide variety of fluids and gases, including potable water applications.
Hundhaus @ TX
Reviewed in the United States on January 24, 2025
Good quality pipe dope. Works as advertised. This should be a staple in your plumbing tool box.
Lisa G.
Reviewed in the United States on January 16, 2025
Works great. Wait a full 24 hours before use.
Danic
Reviewed in Canada on August 12, 2024
Utiliser sur des tuyaux à gaz propane
susan
Reviewed in the United States on July 22, 2024
I changed the thermo couple in my water heater because it went bad. When I reconnected the pilot gas tube, there was a small leak. I tried tightening it up and then redoing it but it still leaked. So frustrating. So I tried the rectorseal and I hoped it would solve the problem because I was ready to give up and call a plumber. I smeared the yellow stuff on the threads and tightened it up and it worked! Make sure to mix the solution in the tube by smashing the tube from top to bottom because when I first opened the tube, it came out as a liquid. So Rectorseal saved the day.
Graham Wood
Reviewed in Canada on June 24, 2024
Works great on gas! No leaks so far!
Eddie Walker
Reviewed in the United States on December 24, 2024
It works
Bill
Reviewed in the United States on December 16, 2024
This stuff is expensive but fortunately it is not needed everywhere. Some Home Depot plumbing fittings have poorly machined npt threads and are prone to leak. This stuff prevents leaks in poorly made or damaged threads.
Kent B.
Reviewed in the United States on November 7, 2024
Used this on a plastic to plastic thread for a water filter install. Went into service immediately without any leaks. A++ product
Al-safar mohe
Reviewed in Canada on November 5, 2024
Very good
Ken
Reviewed in the United States on November 17, 2024
cap was off is packaging, but the tube was sealed all is great
Mike in PA
Reviewed in the United States on July 4, 2023
My well pressure tank started showing signs that it was failing. The well pump would cycle frequently, build up a lot of pressure and then drop quickly. I didn't want to burn out the pump or create a water line leak.I purchased the same Well-X-Trol unit, a Boshart tee kit and associated fittings and reducers. I initially only used the typical white Teflon tape around the threads. I did this even seeing that the old fittings had sealant around them. Sure enough, I encountered some small leaks. All but one sealed themselves over time. The leak that remained was at the tank and tee junction. It wasn't a gross leak, so I figured I would get to it when I had time.As it turns out, a pinhole leak in the copper piping forced me down that road. I had shut all the water off and the next morning the entire pressure tank was empty. So along with fixing the water line leak, I opted to redo all the fittings and connections on the pressure tank and tee.I searched plumbing forums, and it was recommended to use a better tape and/or a sealant. There is much debate as to whether to use one or both, but I opted to use both.I used Megatape and Rector Seal # 5 the second time around. I wrapped the tape around the threads in such a manner that it was always in the clockwise orientation when being screwed into a fitting. This orientation helps to ensure the tape doesn't unravel as fittings are being mated. I went around at least four times for most fittings, the exception being at the tank and tee junction, which I wrapped five to six times.I made sure the tape was fairly tight around the threads as it was being applied, went over it a couple times with my fingers and then added Rector Seal # 5 over the tape. The sealant filled in the thread groove nicely even served as a lubricant during installation. This allowed me to at least get one to two full turns on each fitting.Long story short, the second time around worked. In the future, I will follow the same procedure on any plumbing job that has similar fittings.
Gerald Bakker
Reviewed in Canada on October 23, 2023
Excellent product - much better at sealing gas fittings than Yellow tape. Easy to use and the perfect seal on pipe threads for Propane, Natural gas etc.
Justine Milton
Reviewed in Canada on October 12, 2019
This was my first time using pipe dope, used it for some gas fittings for my BBQ. It was easy enough to apply with a paper towel, I didn’t get it to look very nice and clean in the end but it sealed well and has held up!
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