RT201B Nylog Gasket/Thread Sealant, 30 ml (1 Pack)

I am a fleet mechanic and I am constantly doing on a/c repairs on our vehicles. You can definitely use dielectric grease if you want, but if you really take pride in your work and want to do it right NYLOG is the way to go. I have stopped leaking schrader valves and fittings from releasing refrigerant into the atmosphere. This stuff just works. Our parts guys now keep this in stock in large quantities just for me. The other mechanics have started using this product instead of silicone grease and are just as happy with it. This stuff is great if you are a professional or a DIY'er.

This stuff is sticky so wear gloves when applying. Works very well to take up small gaps around o-ring seats to seal high pressure A/C systems. If you're using UV leak detector, this goop glows bright blue, where the UV detector glow bright yellow/green. There is no accidentally mistaking one for the other.

Seems to work pretty good. But be careful, real sticky when you're working with it.

Great product

I use this on two mini splits and seams to work great.

In doing flare fittings on a mini split ac installation this is a must have. Used this and a Yellow jacket torque wrench and tested the line with 530 psi of nitrogen.... No leaks. And use a Quality flaring tool also.

Good quality stuff, well worth having it, i don't know how effective it is, because i never had a leak that i put it on that then fixed it or something like that, but i haven't had a leak on connections i have used it on, so thats something! Overall easy to use, and definitely worth going the belt and suspenders route when most refrigerants are so expensive now.

Essential product for flaring and sealing AC flared connections.