paints for the Prototype foam

Have Anyone used automobile paints for your prototype model?
I’m looking for sandable -non drip spray paints for my models.
Glossy and Non glossy available? and any of those non-toxic?
I have been using airbrush paints but those are not good quality and often mis-match for the realistic looks that I’m trying to get.
Any model and paint experts?
Thank U.

  1. What type of foam?

  2. What specific finish/look?

  3. How much airbrush experience and what type of paint? (asking because this is my main source of colors for my prototypes whether they are urethane foam, SLA, or SLS.)

  4. How are you preparing the surface of the foam before you apply paint or even primmer?

Try “Dupli-Color” Auto spray paints. They were the underground rage back when I was in school. Haven’t bought any in a couple of years, hopefully they’re still around.

They give you what make and model car the paint matches along with different finishes, there’s usually a booklet or chart nearby in the store.

They also have matte lacquer, clear coat, semi-gloss, high gloss.

My can says it’s a specialty division of Sherwin Williams, if that helps you find them.

do you mean ‘bue’ foam…stryrofoam?..if you do you can get a speacial printer which will make a surface suitible for normall celulose paint. dont kow the name though…its kida like spray on filla…but it wont eat way the blue foam which is what hapens when you try spray it with any non-water based paints.

Yeah if you’re using blue foam you have to make sure you seal it very well or use paints that won’t inst-melt it. I’ve seen some use Gesso to seal it up, then prime that a few times, then paint, not really worth the trouble. If you’re using a more dense foam then yeah, auto spray primer is your best bet. You can usually get them in rust color, black, and grey. I would usually do 2 coats, let it dry fully, then smooth it out with 400-500 grit sandpaper and some water, repeat as needed. You can actually use this primer to fill some of the more porus foams, but it takes quite a bit of time. It’s excellent on the real dense stuff. But now matter what you do, ALWAYS use the same brand of paint as the primer you choose. Once your primer is finished and totally dry wipe down the surface with soft cloth to remove hand oils, this can botch up your paint finish big time.