i have rubbed the grey prima down on my sailaway boat, and have treated any rust spots. I want to put a coat of rustins red oxide paint over the whole boat again, because there are some areas where the prima has come of or is very thin. I dont want the boat to look like a patch work quilt if i just touch in all the little areas. Does anyone know whether the red oxide is ok to put over the bare metal and the previous grey prima, the shop has said it is ok but i would like some other opinions. I know the red prima and the grey prima are both spirit based. many thanks