Thread Sealers..... is there a best one? - TCCoA Forums
 
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post #1 of 5 (permalink) Old 07-26-2003, 07:25 PM Thread Starter
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Question Thread Sealers..... is there a best one?

I'm posting this in the Engine - 4.6L Forum as the choices of which types to use,
often directly affect our engines (besides other systems in our 'Birds).

My understanding is there are three types, all using some form of Teflon:

Teflon tape.....I guess it seals fairly well, but unless you are very careful
in how much you use and how low you place it on the threads you're
sealing, that it can either disintergrate if used in the wrong apllication(s)
or some of it can work it's way loose and plug other areas of the system
you are trying to seal - areas that shouldn't be plugged, like sending units.

Teflon thread sealer....some kind of magoozalum with Teflon in it that you
can brush on threads that forms a seal. Can it break dowm if used in the
wrong area? What are "wrong areas"?

Teflon Loctite....same question...how and where should it be used and
what types of applications should it not be used for/in?

Is one kind better or worse for radiator/tranny line cooler connections?

Is one kind better or worse when sealing threads for oil lines?

If any anyone has a real handle on these choices, I could use some help
in choosing the best one for a given application.

Mager Thom
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post #2 of 5 (permalink) Old 07-26-2003, 07:42 PM
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MT,

i usually use blue locker for the small misc stuff and suspension parts. as for the trans lines..and Tim can tell ya, when i put my new radiator in, the line hardware had some graphite lookin stuff on the threads which i thought would be a good sealant and ran some Red, then clear, than black RTV over the fitting, nothing worked, i sprayed ATF everywhere. Tim took a look at it and wrapped Teflon tape over the threads, just that, it hasnt leaked a drop since.

oh BTW, i took measurements of ride height after the the drop, i observed absolutely no change from initial install to "settling" front is 16inches, read is also 16inches. i tried to be as accurate as possible. according to measurements, that is a 1.45inch drop in the front and 1.75inch drop in the back.

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post #3 of 5 (permalink) Old 07-26-2003, 10:06 PM
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All I can tell you for sure is the only way to go with the drain bolt on the torque converter is with a couple wraps of teflon tape .... LOL
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post #4 of 5 (permalink) Old 07-26-2003, 10:47 PM
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Quote:
Originally posted by MagerThom
I'm posting this in the Engine - 4.6L Forum as the choices of which types to use,
often directly affect our engines (besides other systems in our 'Birds).

My understanding is there are three types, all using some form of Teflon:

Teflon tape.....I guess it seals fairly well, but unless you are very careful
in how much you use and how low you place it on the threads you're
sealing, that it can either disintergrate if used in the wrong apllication(s)
or some of it can work it's way loose and plug other areas of the system
you are trying to seal - areas that shouldn't be plugged, like sending units.

Teflon thread sealer....some kind of magoozalum with Teflon in it that you
can brush on threads that forms a seal. Can it break dowm if used in the
wrong area? What are "wrong areas"?

Teflon Loctite....same question...how and where should it be used and
what types of applications should it not be used for/in?

Is one kind better or worse for radiator/tranny line cooler connections?

Is one kind better or worse when sealing threads for oil lines?

If any anyone has a real handle on these choices, I could use some help
in choosing the best one for a given application.
I think the tape is better for blocking liquid, and the goo crap better for blocking air. I know i've tried the goo stuff on a temp sensor and it didn't work whereas the tape did, and on my paintball gun the goo worked whereas the tape didn't.
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post #5 of 5 (permalink) Old 07-27-2003, 03:41 PM
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The tape works fine as long as you wrap it carefully in the right direction and you leave the starting threads of the fastener uncovered.

The liquid thread sealer works fine as long as the parts are spotlessly clean and you let the stuff cure for a few hours.

Loctite sealers should be used just like liquid thread sealers since they are liquid

Which to use? Tape if there is any question of cleanliness. Tape will seal dirty parts. I don't mean dirty as in dirt clods hanging off the thing, I mean dirty as in it isn't spotlessly clean with no oils, fluids etc on it. If you're in a hurry and need it sealed NOW then tape is your choice.

If it's a new build, bench built or you're a stickler for cleanliness then you can use the liquid sealers. I think the liquids are best but they do require ultra clean parts. If you can clean the parts and let the sealer cure, liquid is superior.

Just passing through
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