Leak Lock

[dswilliams]

For NPT fittings, 3 wraps of teflon tape, with a thin application of Loctite 567. The best way to go. Never had a leak doing it this way. Quit using Leak Lock years ago.

[Tommy knocker]

Never used the nylog, never seen it, but will be getting some now. I have used the blue stuff, sparingly, over the years with success. What I hate about the stuff is the guys who apply it with a calking gun!! I cuss non stop when chiseling the stuff off.

[B1978]

I have used RectorSeal for the past year without a single issue. Think I may try nylog now.

[ryan1088]

I have used RectorSeal for the past year without a single issue. Think I may try nylog now.

Sounds like a personal problem to me! Or maybe something you need after a long weekend of partying....

[n-e-w Jerz!]

i'd really like to start an organization that strictly opposes the use of leak lock. the resi/commercial install dept. at my employer uses it regularly on refrig/gas pipe fittings. its straight up garbage. it cures and hardens like concrete. you know how many unseated flares, plugged up metering devices and service ports that couldn't take a hose fitting i found this summer? too many to count. have fun cleaning it off afterwords.

nylog for refrigerant seals, mega lock or gripp for gas pipe/water threads. end of story. let us never discuss this again......

[hvac wiz 79]

Leak lock sucks

Sent from my HTC Sensation 4G using Tapatalk 2

[Lightning_Boy]

Leak lock for schmoes, nylog for pros.
End of discussion

[hands]

I finally found some Nylog and plan on using it soon. I got the HFC type even though I will be using it on a mineral oil system. I read that it is semi compatible with mineral oil. I don't plan on getting it inside the system anyways.

[STSMech]

Has anyone found a thread sealer for refrigerant fittings that is better than Leak Lock. Over the years I have found a lot of refrigerant filter shell covers that have leaks around the threads of the brass MPT connectors. I have always used Leak Lock on the threads in the past and sometimes it works and sometimes it doesn't.

Dont know which shell your working on (sherman?.) maybe new gasket/oring and proper torque and sequence? Only asking, never had to use a product on a shell cover. However I have seen Nylog on compressor head gaskets. I imagine that would work.

[y7turbo]

Something I've never heard anyone say about Nylog is that it should be used WITH thread tape on NPT fittings. This is from the instructions on Nylogs website.

I use Nylog on flares and gaskets and a few other things like assembling txv's. For NPT fittings I use leak lock, it always seems to work just fine. Follow the instructions and allow it to set for a few minutes before assembly and I've never had an NPT fitting on a refrigeration system leak.

[valdelocc]

Leak lock for schmoes, nylog for pros.
End of discussion

ohhh my god I need some nylog, I'm not a schmoe, nylog...nylog... better than slice bread, I'm running to the store ... must get some nylog... nylog ohhh my god nylog I'm not a schmoe

[slctech]

Dont know which shell your working on (sherman?.) maybe new gasket/oring and proper torque and sequence? Only asking, never had to use a product on a shell cover. However I have seen Nylog on compressor head gaskets. I imagine that would work.

He was talking about the brass 1/4"SAE access port fitting that screws into the head of most large filter shells, not the shell seal itself. Even though I personally put a small film of nylog on the new cover o-ring gasket before I bolt the head back down.
I just have made it a personal habit to use it on any gasket, O-ring, any threaded item, valve caps, or whatever it may be that is trying to prevent refrigerant from sneaking out. Stuff is truly Nectar from the Gods.

[hands]

Dont know which shell your working on (sherman?.) maybe new gasket/oring and proper torque and sequence? Only asking, never had to use a product on a shell cover. However I have seen Nylog on compressor head gaskets. I imagine that would work.

I'm talking about the threaded hole in the cover where you can install a access fitting. I have seen at least 20 shells with leaks around the access fitting that had Leak Lock on it.. I usually remove it, run a tap down the threads and install a new fitting with Leak Lock. Sometimes it seals and sometimes it doesn't.