Vibra-TITE 440 Purple Hydraulic and Pneumatic Anaerobic Thread Sealant, 250ml Bottle

Put this on instead of thread tape and the fittings leaked. I switched back to hydraulic thread tape and back to no leaks. Bottle is about 1/3rd full. Its shifty. I wont be buying from Vibra Tite again.

Have not used it yet, so no comments on its functionality. The 50ml bottle is only 1/3 or even 1/4 full. The bottle looks intact with no signs of leaked fluid from it. Feel like I was fooled by vibra-tite so no more business with them. I suggest you stay away as well. --------------- I would like to take my words back. Here is the direct quote from vibra-tite: Anaerobic products such as threadlockers and retaining compounds cure in the absence of air. It is necessary to have a sufficient volume of air within the container to prevent the product from hardening. This is why the product bottle feels empty.

Did not work, 4500 PSI air fitting and it would not seal the threads

Anaerobic curing means it cures when there is no oxygen. The bottle seems empty but it needs oxygen so it does not harden. Will buy some soon.

Worked great to seal the fittings for a remote transmission cooler base.

The sealant that came with my Quickjack car jack wasnt working and it was leaking ATF through half the joints. I decided to try this instead. Pulled everything apart, degreased with brake cleaner, added this and reassembled. No leaks! Make sure to allow for curing time before use.

It seals threads used in high pressure hydraulic fittings. Does a fine job.

Worked great on my tractor. It sealed the hydraulic connector and it’s held up like I’d hoped it would.

Worked well for several 1/4in NPT hydraulic connections.

I dont have any issues with the product itself. I would have given it 5 stars. My issue is that I received it without the cap to seal it after using it. Now that I have cut the tip to apply to the connections the rest will dry and become unusable for future use.