Return to the Plumbing Forum | Post a Follow-Up

 o
Drying Time-Pipe Joint Compound

Posted by harley_2010 (My Page) on
Sun, Jan 31, 10 at 8:49

Is there any 'Trick' to speed up the drying process on the Oatey Pipe Joint Compound/White,for the Tub-Shower.
Propane Torch, Blow Dryer?
Thanks.


Follow-Up Postings:

 o
RE: Drying Time-Pipe Joint Compound

It is not supposed to dry. Pipe joint compound is only to be used on threaded joints, and if you still have a leak after applying the joint compound you simply did not tighten the joint enough.


 o
RE: Drying Time-Pipe Joint Compound

I tightened it all the way up but there is still just a very small occasional drop of water. Can I put putty or something to seal tight before I close the wall once and for all?


 o
RE: Drying Time-Pipe Joint Compound

If an NPT joint is leaking it can only result from one of two problems, either the joint is not tight enough or it is cross threaded. There is nothing that can be applied to the outside of the joint to seal it.

Either tighten the joint more or take it apart and re-cut the threads, then re-assemble the joint.


 o
RE: Drying Time-Pipe Joint Compound

Did you wrap with teflon tape; three wraps and then coat with a teflon pipe dope?

Tightening a pipe is a learned art. Using two pipe wrenches, I'd say pull as hard as you can muscle up with a 10" wrench.


 o
RE: Drying Time-Pipe Joint Compound

You may use either PTFE tape or pipe dope, but they are never supposed to be used in combination.


 o
RE: Drying Time-Pipe Joint Compound

If you can't tighten it enough to stop the drip, do what you don't want to do: take it apart and do it over. Otherwise, it will get worse over time, no matter how much goo you put on the outside.


 o
RE: Drying Time-Pipe Joint Compound

While I don't want to incur the wrath of lazypup, the use of both tape and dope is widespread in the black pipe heating industry.

I had a tiny drip leak last week between a new copper male adaptor and a brass valve, something uncommon when compared to steel pipe.

I tightened it 3 times over 3 days and finally ended up taking the thing apart and doing it all over again yesterday. Hoping for the best today.


 o
RE: Drying Time-Pipe Joint Compound

Use two pipe wrenches to tighten it. If you are not using a pipe wreench you are not getting it tight enough. Vice grips and channel locs are just not good enough for this job.
You can always tighten it more. The treads are tapered.


 o
RE: Drying Time-Pipe Joint Compound

The key here is the phrase "tightened it all the way up". There is no "all the way up". Tighten it another 3-4 rounds and it will be fine.
A lot of pipe dope contains chopped teflon, along with a lubricant and some finer solids. When tapered threads were common in the oilfield, we used to use teflon tape and grease, and tighten till the joint got warm. It would hold 10,000 psi all day.


 o
RE: Drying Time-Pipe Joint Compound

Thanks to everyone I finally started over and used thick dope and I have no leaks. Now I have a new problem, I tiled the wall and now the new American Standard fittings need to go further into the wall. There is no adaptor or anything for them? I probably just have to cut the wall wider around the fixtures.


 o Post a Follow-Up

Please Note: Only registered members are able to post messages to this forum.

    If you are a member, please log in.

    If you aren't yet a member, join now!


Return to the Plumbing Forum

Information about Posting

  • You must be logged in to post a message. Once you are logged in, a posting window will appear at the bottom of the messages. If you are not a member, please register for an account.
  • Please review our Rules of Play before posting.
  • Posting is a two-step process. Once you have composed your message, you will be taken to the preview page. You will then have a chance to review your post, make changes and upload photos.
  • After posting your message, you may need to refresh the forum page in order to see it.
  • Before posting copyrighted material, please read about Copyright and Fair Use.
  • We have a strict no-advertising policy!
  • If you would like to practice posting or uploading photos, please visit our Test forum.
  • If you need assistance, please Contact Us and we will be happy to help.


Learn more about in-text links on this page here