Hi, i got some 8x4 MDF sheets 22mm thick and i've cut them into wardrobe doors and routered the edges. I've got some Ronseal melamine & MDF paint which says it's a paint and primer in white.What i'm wanting to do is paint them white then give them a few coats of something like car lacquer to give them a high gloss finish. I was wondering whats best to rub the wood down before and inbetween coats of white and the lacquer?