"While this product doesn't eliminate proper prepping, a good cleaning and you get all it's meant to do and be. Working around cars is easier, dries pretty darn fast, even the darker color's we've used blend right in.. I fell in love with this product. Don't worry about the cost, it will make it up for you, Color retention has been very well.. Holds more rust than you would think, but for heavy rust it's best to prime.. I would recommend this product to the pro that want's to make the customer happy and put some extra bucks in the bank... Only problem I have had with any of the top of the line SW products is; Your customers won't call you back for awhile.... It really Last..."