Sand the area you want sprayed with sand paper (no need to go to metal, just get the laquer off). Spray the area qith a few coats of primer. (Leave to dry after each coat) Once dry spray with a few coats of the paint. (Leave to dry after each coat) Once dry spray with a few coats of laquer. (Leave to dry after each coat) Also make sure you have enough paint, I didn't and ended up with lots of red spots (the primer was red) on a bike which was supposed to be pure black.