Plummers tape or Lock tite???

[Spider-TW]

I would also say you should always clean the threads, with either sealant. Taking fittings on and off pushes old sealant downstream, so always try to get both threads clean. Adhesives like clean surfaces, tape likes clean surfaces. Adhesives usually like to set. The non hardening type doesn't care so much, but it likes threads that don't have dents.

Tape is handy at the field since it doesn't need to set and is a little more tolerant. It's easier for me to find a piece of tape in a reg or solenoid than a little chunk of old adhesive.

[luke]

Oops, I posted the wrong picture, it is 545 thread sealer not the 569...

[WholemealDrop]

It's easier for me to find a piece of tape in a reg or solenoid than a little chunk of old adhesive.

My basic logic on using tape over thread sealer

[athomas]

I do carry teflon tape to the field in my tool kit as well as my bottle of thread sealant and a tube of thread locker. The thread lock is for nuisance nuts/screws and not for airline construction. Both sealant and tape have their uses. The loctite sealant I use is 545 which is purple in color. For constuction of an air line that is for long term use, I always use the 545 loctite.

[vintage]

Like just tab it around the fitting or thick coat it?

it only takes a small drop, if you put too much you end up wiping it off the outside of your marker.