Air fittings and loctite 545

[clemsonteg]

I will be using loctite 545 for my air fittings. Do I need to use anything else?

[lolife99]

No.
Just make sure all the connections are clean and dry before applying the 545.
They also recommend a 24 hour cure time for best results.

[andrewmp6]

And on the rubber lines use a line cutter so the cuts are straight.

[clemsonteg]

Can using too much cause an issue? I had several leaks and the only thing I could figure was that I used too much loctite and maybe it didn't cure properly.

[tinydb84]

I used it and let it cure and it didn't leak one bit.

I also used it (with tape) to plumb my air compressor set up and it worked wonderfully.

I like to clean all my fittings. Tighten them once. Completely unscrew them and clean them again. Then I put the sealant on. Put the sealant on the hose, the fitting, compression tube, and top fitting.

[clemsonteg]

Originally Posted by tinydb84

I used it and let it cure and it didn't leak one bit.

I also used it (with tape) to plumb my air compressor set up and it worked wonderfully.

I like to clean all my fittings. Tighten them once. Completely unscrew them and clean them again. Then I put the sealant on. Put the sealant on the hose, the fitting, compression tube, and top fitting.

I assembled all of my fittings and waited weeks before applying air while I finished the rest of my setup so I figured it was cured.

[Tree-50]

I've only ever used Teflon and haven't had any problems.

[lolife99]

Originally Posted by clemsonteg

I assembled all of my fittings and waited weeks before applying air while I finished the rest of my setup so I figured it was cured.

You are leaking at the pipe threads?
Or at the tube connection of the PTC fitting?
Did you buy DOT approved fittings?
Or is this at a combination of NPT fittings?

Can youi post pics of be specific where the leaks are?

[clemsonteg]

Leaking at the pipe threads. I think I only found one leak at a ptc fitting and that was my fault. All of my leaks were located at the tank. Brass npt fittings and an aluminum tank. I assume that te tank is tapped for npt threads, so all of my leaks were at npt to npt connections.

[naynay]

I've heard of issues with home depot brass fittings cracking.

[tinydb84]

Originally Posted by naynay

I've heard of issues with home depot brass fittings cracking.

You should only be using DOT approved fittings.