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

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

For anyone who needs to assemble flare fittings (very common with ductless mini-split heat pumps and vintage automotive air conditioning systems) you really owe it to yourself to get a bottle of this. You only need a couple drops per connection, but this stuff works wonders. HVAC installers know that flare fittings are a very common point of failure in HVAC systems, but this product helps tremendously. It allows the pieces to move around just a little when assembling them, which allows you to easily find that "spot" where the flare sits just right on the fitting. This product also lubricates the threads and the interface between the pipe and the collar, which makes torquing the connection easier, and with very little change of damaging the flare (also a common problem with this type of connection). I think this is well worth the cost.

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 works great seals refrigeration connections and will not foul or contaminate the refrigerant.

Works well on flares and fittings

great product would definitely recommend when you are installing minisplits to get a great seal. Product doesn't get hard at all and it's a great price. Color is clear on the product.

Used this on my Pioneer mini split install. Sealed it up perfectly and held a vacuum. Reviews speak for themselves, this stuff just works.

Quality product.