I am almost ready to spray the current project car for my friend, I have only painted the trunk lid off the car so everything else will be painted put together. I used SPI urethane sealer on the trunk lid and want to use SPI epoxy primer on the whole car, The urethane is a darker grey than the epoxy. Will this affect the color between the trunk lid and color of the car? I am spraying Cromax Maroon metallic.