I've painted the underside of my trunk and hood using the same method , white SPI sealer, 3 coats of DBC, 3 coats of 5000 but I can tell a difference in color. Its nothing a camera would necessarily catch but I can tell. I bought two gallons of DBC code 56 Corvette Bright Yellow. Shook and stirred them both, poured them into a 10qt stainless pan and stirred with a drill paddle and then poured into 8 quart cans because I am painting the car apart and doing my best to make it match. I bought SPI white sealer and am spraying one coat 4-1-1.5 over sanded gray SPI standard primer. Obviously now I am concerned about color match! My questions are.
1) Do added coats of base just achieve color coverage or will they change the color to the point of not being the proper color?
2) Wondering if not waiting the same amount of time on the sealer drying could cause the yellow base and white sealer to mix and lighten the color?
3) Some brands of sealer claim "better gloss hold out", are there differences in urethane sealers or are they all basically primer?
1) Do added coats of base just achieve color coverage or will they change the color to the point of not being the proper color?
2) Wondering if not waiting the same amount of time on the sealer drying could cause the yellow base and white sealer to mix and lighten the color?
3) Some brands of sealer claim "better gloss hold out", are there differences in urethane sealers or are they all basically primer?