I am using Poly Fiber Products. I began using Poly Fiber Brush spraying one cross coat and the a straight coat. It is recommended to do two cross coats, but it is getting thick and this is and ultralight, so I decided to cut back on the application. Then you consider that there will be Poly Spray (two cross coats recommended), then the paint (Poly Tone), two cross coats recommended, I don't want to make the paint so heavy that I can't stay within the weight criteria.