WOW! The kit not only contained a junk refrigerant, evidently without the Federally mandated refrigerant specific fittings, but also included a sealant.

Unless you found and installed Duracool specific fittings and installed them, you are violating Federal law. In addition to violation of the law you have a sealant in the system which can possibly destroy the system and will definitely render the system to be identified with a sealant. No shop with a recovery machine will touch this system because the sealant will destroy their expensive recovery/recycle machine and it is a violation of Federal Law not to recover refrigerant before servicing. If you did not use Duracool specific fittings I would not be posting your actions on a public forum.

Also, with Duracool being a flammable, you need to check your state law. The use of flammable refrigerant in Mobile A/C systems is a violation of law in 18 states, at least the count was 18 a few years ago.

This is a perfect example why I was recommending a little research before taking such steps.

In the short term you have cold air, the long term will almost certainly not be such a bed of roses.

Best of luck with it.