Thread sealant

[The Hobbit]

Need to replace some macro lines and have heard some negative things about Teflon tape. I guess I can see if you are sloppy, how material could get into regs and other downstream areas.

So, what is MCBs preferred method for sealing npt based fittings?

[BrickHaus]

Blue loctite 243 preferably as it's oil resistant more than 242. Seal, sock, wipe. Looks mint.

I use Teflon in a pinch, and you can be clean with it. But loctite is king.

[Hellion360]

And there you have it. I like vibra-tite 125 gel since it is easy to apply with the pump bottle.
I never use teflon in the shop, but have some in my field bag in case someone has an issue needing an immediate fix.

[Roger7pball]

It’s expensive but I use Loctite 545 pneumatic and hydraulic fitting sealant.

[ketzer7]

Same. I started using this after watching a video from Simon @ Inception saying it was the right product to use on air fittings. I bought a big tube of 5452 from Amazon since it seemed that's all that was available at the time, and the only difference as far as I could tell is that the -2 version dries faster.

[Tarsun2]

lol its like im at work.
at the hospital i work at, we dont use teflon tape on the O2 blenders or O2 concentrators. all it takes is one little piece... though the stakes are a little higher when your helping someone breathe.

[The Hobbit]

Yeah I can see why you would want to avoid Teflon debris there.

[Trbo323]

Teflon tape

Been using it for 15 years, have never had a problem because of it.

I have seen a potential issue with liquid sealers because what can happen is if there's too much it can dry and turns to powder which then coats everything downstream and gums up stuff.

Teflon is cheap, easy and it is also a field fix if needed, no need to Wait for it to dry

Sent from my motorola edge 5G UW (2021) using Tapatalk

[iamthelazerviking]

+1 for Teflon tape, for the same reasons

[iamthelazerviking]

I've never used thread locker on air fittings, just Teflon tape and haven't ever had problems other than sometimes the tape shows and doesn't look cool

[Snowking63]

Same, teflon is all I've ever used.

[Olsson]

+1 for teflon tape.

I have seen a lot of people dislike teflon tape over the years/decades, but personally I have never had a problem with it. As long as you aren't sloppy when you apply it, there won't be any minor bits going into any solenoids and whatnot.

[Grendel]

Depends:

• In the field as an expedient repair - Teflon Tape (never goes bad in my tool kit in my bag easy to use and works well)
• In the shop for fittings that will be changed on occasion - Teflon pipe dope (takes very little and never really hardens but you do need to clean up any excess it will make a mess)
• In the shop for fittings considered "permanent" or will have twisting forces on it. Loctite 567 or 243

[Toestr]

Pipe dope if the threads are in a clear area that is easy to wipe off excess. Teflon tape for under elbows, small gauges etc. Both are fine as long as you keep the first couple threads clear (just like any thread locker). Be careful if you use pipe dope on guns with a matte finish as it will stick in the texturing and leave a faint white mark that is difficult/impossible to remove.

[Tarsun2]

i use teflon at home all the time and on my marker. no issues either.

in the medical field though, its a little different. imagine a nurse partially unscrewed the O2 reg from the fitting and then screwed it back in (stuff this this actually happens). it is possible that the tape could bunch up and then be pressed back in. if a pt were to get injured from a tape fragment, or pt care was delayed or inadequate due to a malfunction from using teflon tape, you can bet there would be a lawsuit. and imagine me on the stand telling a judge; "well you honor, i have never had an issue with telfon tape and neither has the entirety of MCarter Brown..." probably wouldn't fly lol

the thread sealant prevents leaks but also makes it harder to remove the fitting. In paintball you really want serviceability, where im at though you dont want people messing with stuff.

for paintball, its fine. dont use too much, wrap it the correct way, and make sure the tape does not extend past the fitting. youll be fine.

[Psycho91]

Blue locktite, been using it for like 10+ years and you don't have to wait for it to dry it should seal when you stick air to it, learned this from Mike at techpb, and iv never had problems getting a fitting off just don't he man the fitting on

[latches109]

have heard some negative things about Teflon tape

I would wager they do not know how to install incorrectly. Think about this, every house uses teflon tape on the water and gas lines. There is also special O2 Teflon tape that is used in Scuba. Loctite and other adhesives are also abused and installed incorrectly. Teflon tape makes it easy to remove your parts and reduces the change of marring your equipment. Most parts should use clamping force to be held in place, not adhesives. When installing teflon tape, ignore the last thread, wrap clockwise for RHT with the inside part of the roll, use a blade to cut over flow, it must be tight! and wrap 3x.

+1 for teflon tape - loctite/adhesives do have their place.

red loctite has zero place on a paintball marker.