to anyone who has rattle canned their car, did anyone properly prep them like sand them down etc, or did you just prime over the current paint?

i know i sound like a simpleton, but thats because i am...

cheers guys!

I'd go over the current paint with something like scotchbrite first then the primer has something to bond to. But i never sprayed properly only used rattle cans to do things like mirror covers etc but these has always worked ok for me

never painted a whole car before but am known to paint the odd panel a funny colour.

i usually just sand the panel down quickly, maybe for 5 mins and then primer, colour and laquer.

all this will depend on the panel colour, the colour your going to use and the finish you want.

depends how well you want it to come out.

when i sprayed my car i took about a week of prep (but there was a lot of fullering to).

i went over my entire car with 120/80grit. not down to the metal but down to the primer in most places. then i went over most of it in 1200 with the electric sander to matte it all.

that was a few months ago and from hail to sunshine the paints held up

nice one cheers guys.