Mixing paint is not as complicated as it seems. We chose Du pont nason paint, which is a good quality, economical paint. A gallon of nason, catalyst, and reducer may cost just around $150. using the paint requires a 6:1:1 mix; six parts paint, one part catalyst, and one part reducer. these foolproof mixing cups are a cinch to use. Choose any point on the cup such as line 5, and fill to that point with paint. Fill to the second 5 line with catalyst, and the third 5 line with reducer. Don't mix more paint than you can use, we recommend mixing a cup at a time.