Pipe thread sealant?

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DianneB
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Location: Manitoba, Canada

Pipe thread sealant?

Post by DianneB » Mon Apr 01, 2019 12:11 pm

What do ya'll use for "pipe dope" on model size threaded steam pipes?

I used to use "Master's Metallic" compound on everything from full-size steam to models and it work 100% but it is hard to find now. I have tried all kinds of thread sealing products from many different outlets and they don't work worth road apples! :x The only thing I have that usually works is gasket shellac .....

Tim B Guenther
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Joined: Mon May 08, 2017 1:09 pm

Re: Pipe thread sealant?

Post by Tim B Guenther » Mon Apr 01, 2019 7:08 pm

Locktite 510 Flange sealant. I use it in place of gaskets and for the threads on small steam fittings.

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Greg_Lewis
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Location: Fresno, CA

Re: Pipe thread sealant?

Post by Greg_Lewis » Mon Apr 01, 2019 8:30 pm

There have been threads on this here. Do a search and you'll come up with many suggestions.
Greg Lewis, Prop.
Eyeball Engineering — Home of non-interchangeable parts.
Our motto: "That looks about right."
Celebrating 30 years of turning perfectly good metal into bits of useless scrap.

Soot n' Cinders
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Location: Marietta, Georgia

Re: Pipe thread sealant?

Post by Soot n' Cinders » Mon Apr 01, 2019 9:30 pm

I use regular engine anti seize. Seals up nicely plus makes things easy to remove later on.
-Tristan

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-2.5" scale Class A 20 Ton Shay

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BigDumbDinosaur
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Re: Pipe thread sealant?

Post by BigDumbDinosaur » Mon Apr 01, 2019 9:49 pm

DianneB wrote:
Mon Apr 01, 2019 12:11 pm
What do ya'll use for "pipe dope" on model size threaded steam pipes?

I used to use "Master's Metallic" compound on everything from full-size steam to models and it work 100% but it is hard to find now. I have tried all kinds of thread sealing products from many different outlets and they don't work worth road apples! :x The only thing I have that usually works is gasket shellac .....
Oatey Teflon pipe sealant works well. If you use it be sure to thoroughly de-grease the mating parts.
—————————————————————————————————
I'm an old guy. What's your excuse? ☻

Mike Walsh
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Location: St. Louis, MO

Re: Pipe thread sealant?

Post by Mike Walsh » Tue Apr 02, 2019 6:18 am

I use 1/4" wide Teflon tape from McMaster Carr. Easier than putzing around with your 30c rolls of Teflon tape from the hardware store.

I always double check my fittings to ensure nothing gets inside a valve body, etc. and always keep the tape one thread shy of the end of the fitting. I think this helps keep the tape from getting inside whatever you're working on.

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cbrew
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Re: Pipe thread sealant?

Post by cbrew » Tue Apr 02, 2019 7:13 am

just off the shelf red thread locker. works good and never had an issue with disassembly
If it is not live steam. its not worth it.

steamingdon
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Location: massachusetts,usa

Re: Pipe thread sealant?

Post by steamingdon » Tue Apr 02, 2019 8:03 am

Permatex High Tack ( Red stuff) good on toast also. Any good auto parts store will carry it. :D
steamer

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FLtenwheeler
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Location: Florida, on the Lake Wales Ridge

Re: Pipe thread sealant?

Post by FLtenwheeler » Tue Apr 02, 2019 8:15 am

I use Loctite 565 thread sealant.

Loctite 565 Controlled Strength Thread Sealant is formulated specifically for metal, tapered pipe thread fittings.

Tim
He who dies with the most unfinished projects: Should of put more time into their hobby.

John Hasler
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Location: Elmwood, Wisconsin

Re: Pipe thread sealant?

Post by John Hasler » Tue Apr 02, 2019 8:38 am

And that's the problem with Loctite products: there are hundreds of them, each with a very specific purpose. Wonderful for manufacturing, but which ones should I stock in my home shop?

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FLtenwheeler
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Location: Florida, on the Lake Wales Ridge

Re: Pipe thread sealant?

Post by FLtenwheeler » Tue Apr 02, 2019 9:02 am

John Hasler wrote:
Tue Apr 02, 2019 8:38 am
And that's the problem with Loctite products: there are hundreds of them, each with a very specific purpose. Wonderful for manufacturing, but which ones should I stock in my home shop?
Hi John

I has at least 10 Loctite products I try to keep around the shop. But most people can get by with 3 or 4. It depends on what you are doing.

Tim
He who dies with the most unfinished projects: Should of put more time into their hobby.

mattmason
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Location: Sacramento, CA

Re: Pipe thread sealant?

Post by mattmason » Tue Apr 02, 2019 10:31 am

Blue threadlocker Loctitie or Permex. Easy to disassemble, easy to clean off during maintenance, always available on the road, won't break off like tape. Just one of the many methods you could use.
Matt Mason

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