577 Thread Sealant 50 mL Tube | Medium Strength, For Metal Threads

It's a great thread sealant for air compressor fittings. Air compressor fittings are prone to leak due to bad cut threads, vibrations, oil and moisture. I have used teflon tape, pipe compound, blue thread lock with various levels of success. Loctite 577 guarantees a leak proof connection every single time. It may seem expensive but you don't even have to go back and check the connects for leaks. Most likely one of the bests thread sealants around for compressed air applications.

Excellent choice for sealing gas fitting, easy to apply, a little pricey but well worth it for piece of mind that you will have no leaks

You have to shake it a lot to mix it if it's been sitting at all. I keep it in the refrigerator hoping that will preserve its shelf life which isn't listed as that long for a non-professional. I usually use teflon tape or the liquid teflon even more. However, you still need to max torque on the fittings and some of the Chinese SS & Brass fittings still leak. If you've got elbows or tees that need a particular alignment, best fitting torque often puts me 180-270 deg. out of alignment. This stuff works great to seal (I was using less than 80 psi) water fittings with a mild snug fit and yet without excess force, is removable. Leaves a lot to clean up on the threads but an easy job. Now my go-to sealant for pipe threads I would typically glue or solder or epoxy. Hope it stores well in the refrig.

Thick-bodied setting thread sealant. Worked well to place and seal a straight thread in tapered hole. The setting sealant also provides vibration resistance where there is too little interference between mating thread set. Minimal set up time to put system in use. I look for branded merchandise when performance is critical: the cheap is cheap for a reason.

product worked as expected though quite spendy

Used this on a recent solar panel install on a van and so far have been quite happy. Seems to have sealed all of the rivets and bolts used in the install. Even in the blazing sun, have plenty of time to work with this stuff. Application is easy once you get the bottle open; you have to pull the nozzle away from the body to open it. There is some significant extra run off once you close it again, so take that into consideration when applying.

Works as it should. New in tube, known quality, super fast shipping!

Works as intended

Used this to seal the annoying dripping threads on my shower head arm where Teflon tape wouldn’t seal. Worked perfectly

Amazing product quality and timely delivery. Just to inform everyone you might feel the tube is empty but its not. It is full 50ml. There is air purposely left inside the tube because Air is needed to prevent adhesive from curing inside the tube itself.

This thread sealant is my go to at work when I have trouble sealing npt threads. If tape doesn’t work I break out the 577. I use on water cooling systems.

I just received the package. The tube isn't sealed, it is half empty. I highly doubt it's a genuine Henkel product

It was only less than one third full. It seems almost whole pack is empty.