Duco is inferior to 2K ,It tends to fade much quicker than 2k. It will not have the sheen that 2K gives you from the gun. 2K has a longer life- span than duco ,it will not scratch and chip as easy as Duco. It is very important to use a mask in a well ventilated area.It is also recommended that you have a glass of fresh milk after spraying . I also find 2k easier to use than Duco,it does however takes much longer to dry. If you want the 2k to give you a satin or matt finish just add matting paste until you are satisfied with your finish .