Permatex54540 Pneumatic and Hydraulic Sealant - 1.22 oz.

Was replacing all the hydraulic hoses “14“ on a 55 year-old tractor about four hoses would not stop seeping hydraulic fluid. I cleaned them off and put this thread sealer on and everything is dry now super impressed.

New hydraulic lines on my old loader tractor, the farm store chinesium fittings would never seal. Tried Teflon tape, and then pipe compound, both coupled with multiple ugga duggas. Still a steady drip from one fitting of a drop every 5-10 seconds when operating, with the other line weeping.I invested in this and the spray cleaner/primer as a last resort. Cleaning the fittings and lines was a chore, but I got it done. On reassembly, I deliberately only used about a half of an ugga dugga while tightening, as that's all it should require. Let it sit 24 hours, and no leaks, no seepage, no nothing. Yeah it's a little expensive, but it works. I can't say if the results would be as good without the spray cleaner and primer, so I'd recommend you use that also for a good repair.

This stuff is really worth the money if you need it. Then you will use it on every threaded fitting. I initially bought this since it was movable & non contaminating for speed bleeders on my car and race bike and it seals so effortlessly I've used it on every air compressor fitting and tool including HVLP paint gun fittings, boat fuel water separator fittings, every pressure washer fitting, hose and gun/wand. If you let it cure for a few days its ability to take apart and reseal without re applying is better but its not necessary. Have used it 5 minutes after application at 3000+ psi. The "other" brand makes a comparable product as well. Prices will vary from $22 to $32 for either. Any of the less expensive sealers that have similar descriptions are not close in actual performance. Shake before use. Great at reducing foul language when working with threaded fittings.

I have used this product in the past. It's good quality, easy to apply.

I used this with the 24163 surface prep, on a log splitter. I had to mount a new valve, so there were a number of fittings that needed to be redone.I had to adjust one of the fittings after it was all done and had cured for at least 24hrs. The fitting moved to the new angle without leaking at all.All fittings have been in place for a while and have seen a lot of use, with a high pressure/flow pump.I am now using it on my pneumatic fittings instead of teflon tape. It's spendy, but so worth it

Will never use Teflon tape again

Does not work for hydraulic leaks let’s sit for 72 hours followed directions still leaks

I purchased this along with the Surface Prep. I had a weeping brake fitting on an antique truck that could not be purchased new. A thorough cleaning and treatment with the Permatex products seems to have remedied this seeping.