It is as simple as this: You now have an evaporator that is no good. Once a sealant is added to the system THE WHOLE SYSTEM is no good and the only way it will ever be any good again is for EVERY SINGLE COMPONENT to be replaced.

I am a big proponent of free enterprise and for big government to stay out of my life. But I think if they outlawed such snake oil products I would be fine with it.

Many of the shops spend thousands and thousands on recovery/recycle equipment that can be DESTROYED if this junk makes it into their machines.

PLEASE don't use it. Replacing an evaporator on some models is indeed a big job, but it is not an impossible job. Get the manuals, take your time and you can do it. MANY people on this board have done so with success.

Good luck,