First thing i did was remove the interior panel on the hatch and then stripped all the pieces off of the hatch. sanded starting with 220 and finished with 400. I primed the panel after that with self etching primer, after it flashed i primed again with white duplicolor sandable primer. Then sanded the primer starting with 500 and finishing with 1500. I did this step many many times to get the desired smoothness. After that i let the primer cure for 3 days before painting to let it shrink as much as it was going to. Then i sanded it again to make the primer smooth after the shrinkage, sprayed it with 3 coats of color and 3 coats of clear.