Best thread sealant?

[gsganzer]

I keep a tube of Loctite 567 in my toolbox and use it on most everything. Another one is Gasoila PLS2. We use both in the oil and gas industry on most threaded connections.

 

[BukitCase]

Loctite 565 is the faster version of their 545, supposed to withstand 10,000 psi "rapidly", whatever THAT means; I stick to the 565 (not usually in that much of a rush) on the exceedingly rare occasions where I haven't already junked pipe fittings for JIC's, ORBs, etc... Steve

 

[SilentJ]

There are two kinds of pipe threads

The ones that leak,
And the ones that will.

 

[LD1]

There are two kinds of pipe threads

The ones that leak,
And the ones that will.

Not even close

 

[nyone]

There are two kinds of pipe threads

The ones that leak,
And the ones that will.

I hvve a loader with the oldest hose from 1985. I removed that hose because the UV rays killed the hose. Not because the pipe threads leaked.

With that logic every house in american would also have water leaks.

 

[LD1]

I hvve a loader with the oldest hose from 1985. I removed that hose because the UV rays killed the hose. Not because the pipe threads leaked.

With that logic every house in american would also have water leaks.

Not to mention Auto industry that uses a ton of npt

 

[WranglerX]

Technically PTFE tape is not a thread sealant, its a lubricant, its designed to lubricate threads so you can tighten fitting more to get tighter mechanical fit of threads..... I hate the stuff and it hates me...

Thread seal tape - Wikipedia

My all around go to...

Dale

 

[ovrszd]

There are two kinds of pipe threads

The ones that leak,
And the ones that will.

I take this comment as referring to NPT threads assembled with no leak preventive measures? If so, I tend to agree. I always use some type of sealant.

 

[oosik]

I have a product made by Permatex. Looks like a tube of tooth paste - light grey in color. Specifically made for use with piping carrying petroleum products. Smear it on all the thread except the first two or three. Been using it for 12+ years now. Seals just fine.

 

[xryan]

As my journeyman plumber friend said "get that **** tape out of here" teflon tape is just a band aid the ignorant use on a mortal leaking wound. All it does is make more of a mess and when it breaks off inside it F's up everything it's used on. USE PIPE DOPE or the proper PERMATEX brand liquid thread sealant for whatever fluid or gas you're working with.