I would just like to say that this product is absolutely amazing. It is so easy to apply and the results are spot on. I use it on items that we gold plate. I recommend not using any Acetone to clean items as this causes issues that I quickly worked out. I tend to use smaller pieces of the lint free cloths also purchased and if lacquering larger items I use a few small pieces and have outstanding results. I just use the prep 1-4 mix and let dry and then straight on with the lacquer. I've never needed to use anything else at all to prep anything. This is on newly plated items that are not touched other than with nitrile gloves on.