if your after a mirror finish i suggest you use wet sanding technique.you wont get it from just paint or spray,you need to get the paint/spray smooth,that means sanding,wet sanding being the best.it removes the shine you get as normal with glossy paints but,it gets the surface smooth,you just use something to put the shine back afterwards.
i am currently sorting the cosmetics out on a cab i am maming,i got another that is jamma.it is just taking me a while thats all,every coat of paint takes a day to dry so when you put like 3 coats of paint on it takes nigh on 3 days just for waiting for paint to dry.then its wet sanding,have a go here then have a go there.trouble is if your not carefull like i was not,you find you sand it that smooth that you start showing the undercoat so you end up having to paint again and it gos round and round.
i found best technique is to put 4 coats of paint (i am using enamel) dont sand inbetween the coats,just roll it on and get it so it aint got roller marks all over it,then on the 4th coat,when thats dry use 240 grit wet and dry silicone carbide paper.just get a bucket of water,use a sponge to splash water on the surface,dip your paper in the water (use a sanding block) then sand back and forth in the same direction,dont swirl it.always back and forth on yourself.
then when you think you wanna check it,wipe the residue of it and wait till it drys,if you see lots of little dots,thats the top coat of the paint,where the shine was,try to get rid of it.then check out the smoothness.
when you have it wet it will shine and it will reflect everything,that is what will happen once you put the shine back.its like piano finish.
i have had to just put 4 coats on my cab side (again) cos i sanded it down too much,when i wet sand that,i will be carefull this time not to take it too far down,then my sides will be done.i will post pics in my other project thread.it will give idea of what happens when you wet sand.
http://forum.arcadecontrols.com/index.php?topic=94827.0this was the first side of the cab i did,i noticed i went a bit too far in parts,i went and did the other side and same happened (white blemish's and patchs) i just put 4 coats on and wet sanded and its looking better than before.this side in the pic i am just having go with again,4 coats of paint,then wet sand it.
so yes,it takes quite a lot of paint,time and pastience and knowing when to stop sanding,just that little bit too far and its back to drawing board.
