Refrigeration Technologies 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.

Great product and goes along ways

Helps prevent leaks on AC flange fittings. Works well, less expensive than others I've used, but seems to be same or very similar product. If doing AC work I'd recommend.

Worked as a good sealer. No leaks detected after fairing the ends and connecting them together.

Very wise to use this when installing mini split units.

I'm on my second bottle of this stuff and I just love it for sealing my connections it's just a insurance policy to make sure that you don't leak all your Freon out it's a wonderful product

I use this product on my central air conditioning high-pressure line when I added a filter dryer just outside of the evaporator coil and I was kind of figuring in my mind that it was probably going to leak, but it did not have any leaks at all. This is pretty good stuff, and it was not expensive. Very satisfied!

This product is fantastic. Works great as a lubricant and a sealant. Used this on the line connections on my mimi split no leaks!