This Liquid Pigment Rust set is AWESOME! It is so easy to us and add BAD-- flavor too your models, I am sure the pros have used it for years but like I said many times before I am no pro and this made the models I used it on look incredible, It takes no time to figure out how to use , there is no manual so it is trial and error , I tested it an a very cheap model , it is not paint it is a pigment wash that dries quickly and differently so the more apps you apply the more the color that will appear and you can remove it with the remover that comes with it, I will becoming much more experienced with this product, if you like to add real detail to your models I think you would be interested in this product, it was well worth my money and time! I will have pics attached to the product, hope you enjoy and hope it helps, Scott M.