Help , before I do something I will regret in 2008 , I want to use a brown spray paint on blue foam then apply ground foam , I guess this would be ok, as long as its not oil based???
You are correct although I am not sure that all spray paints do not contain VOCs that would eat the foam. Especially avoid Rustoleum paints as these are definitely ones that would eat the foam.
As an alternative it would be a lot cheaper and not much harder to brush on some brown latex paint from a can. You could buy two or three quarts of different colors and vary them under the foam.
I bought a flat brown… I dont have the can in front of me but I believe it had the rust reduction chemical in it … I will just use the old brush method[(-D]
I like the Rustoleum imitation stone, brown for dirt and black for roads. It does eat foam, and takes a lot to cover the color underneath. My soulution is to first paint black or brown latex with a brush, then a thin coat of the Rustoleum over the top. It only takes a little because it doesn’t have to cover the blue, and the latex protects the foam.
I prefer to place the scenery materials on wet acrylic earth colored paint. This is a good base for the initial bonding of the scenic material. If you still want to use a spray, the American accents line is foam safe or any other acrylic base as well.
If I have an already colored base then I’ll just brush on a thinned white glue or matte medium then ground foam.
Krylon now makes a line of spray paints that are water based and safe to spray on foam.
Their website has color chips. I first learned of this paint on these forums and now I see it is in all the hardware stores. I have tried it and find that it covers a bit differently than regular spray can paints – a little tricky to really saturate a surface.
Dave, just came back from art supply big box and found it today … Krylon H2O Latex … I am going to use this as a base on the foam and add ground foam…I am also going to try the black stone look for the coal operation … This is my first big step into scenery … I am going to use a little piece of foam as a test area…
As loathar notes in a posting above, the Krylon H2O paints are not flat or matte. They aren’t exactly gloss either – a sort of semi gloss – so some matte medium brushed over it might be in order. Thus far I am having no problems since I am using it as a base color covered by ground foam, dirt, etc
Ho Ho Ho, this reminded me after i sculpted a whole mountaim boad out of it. Sprayed it black base coat and boom!! i big melted(ish) table. My advise is to FIRST spray the foam with polyurathane, then the paint. it works!!