577 Thread Sealant 50 mL Tube

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.

Used this to seal straight threads in a hydronic system. Held up to 100 psi of air no problems.

Great pipe thread sealant!

I've been fooling around with various tapes, teflons, sealants, puttys for years. Sometimes your leak free, but often you have a redo. This stuff has a chemical metamorphosis in the joint and doesn't allow a leak.

Used it for the first time on a air compressor at 175 psi and it held up good. But wish at that price I’d get a little more product.

I bought my first tube of this 577 to seal a propane installation; there were no leaks first time out, period. I next used it on a new water well installation where green Teflon and pipe sealant failed; once again with this 577... No leaks. The tube feels about half full because it needs air in there, otherwise it will set-up...that's how this anaerobic sealant works.

Purchased this product before and its great but order recently and received almost empty container and it was not sealed.

Some people were saying it’s a small size. This is gonna take me years to finish.No complaints