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Do not and i repeat do not use regular use spraypaint on polystirene cause it melts really bad, but i found that if you are planning on making a black field and want to make a strange rock formation get a big hunk of polystirene and use PVA to glue it on the field then spray paint it black and whatch it melt (hehehe). it looks really cool i did it my self.
The fact is that any glue, spray or paint containing solvents will melt polystyrene.
An alternative is to cover the entire piece with filler before you do the spraying.
But as you say the melting effect can create some really neat pieces of terrain...
oh yeah....I found that one out the hard way
another tip don't put your terrain to close to a heat lamp to get it to dry faster.
Didn't think of that...
What did it turn out to when you did that?
To stop the polystyrene melting, you could always give the piece a thick coat or two of PVA glue. I use that to stop the any exposed foam core center melting.
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Man I just use real rocks LOL, my table will not be easy to move
I have heard of many neat affects with spray paints on polystyrene but haven't tried it myself yet. I mostly use foams for hills and board bases, not buildings.
I also use real rocks from my driveway if I can. As it is made of loose stones.
I'll try the slag rock just to see how it comes out...
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I concur. Remember this tip also when working with foamcore (art board with two sheets of thick paper surrounding a foam center). I use matte spray as a sealant for just about all my terrain and the stuff will eat right through exposed foam/polystyrene. Make sure to use PVA glue to seal the surfaces, kids!To stop the polystyrene melting, you could always give the piece a thick coat or two of PVA glue. I use that to stop the any exposed foam core center melting.
hmm i cant say ive ever done any of those, ohh well guess im not as stupid as i thinkk i am.
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A big gooey mess....
cool idea for " slag " hill
make a three tiered hill so that all three pieces of foam meet up and form one big soild wall around one part of the piece. paint the rest so that it won't be affected by spray propellant, paint it with spray, fill in exposed holes in foam with ink wash, drybrush, flock
it's just that easy. :blink: