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The Magic Cafe Forum Index » » The workshop » » Styrofoam (0 Likes) Printer Friendly Version

maps
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Does anyone knows what kind of coating I can use over styrofoam to make it hard?
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JamesTong
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I would like to know too. Will the coating fall off if the item is dropped?
ClintonMagus
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JamesTong
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Thanks, ClintonMagus, for the link.
pixsmith
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Sculpt Or Coat works well too. I have found that these products are pretty durable, and you would more likely get a dent than have some of the coating break off. You can also use acrylic pigments on/in them to tint or color them. If you are in a pinch, white glue will also give you a nice skin on styrofoam, though some of it isn't quite thick enough to do the job in one coat. Letting it stand in a container, like a butter tub, for thirty minutes or so can help with that.

Another .02
maps
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Thanks ClintonMagus.I think that is what I am looking for.Have anyone tried using it before?
Is that what prop makers coat it for outdoor uses?
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owln_1
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There's a product you can get from boat suppliers named "THE WEST SYSTEM" that is a 2 part resin like fiberglass that can be used over styrofoam or any other foams, can be used indoors without harmful fumes. Set and Acts just like fiberglass. Owln_1
maps
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That's very useful information there AlanHogan.Thanks!
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Father Photius
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Avoid anything with any form of petroleum distillate in it. That stuff disolves styroform like hot water disolves sugar.
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chill
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I have used water based epoxy paint, handles well but unless you multi coat it will not pass the drop test.
bob
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maps
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Most of the time,I mache over the styrofoam and then using using a brand called Apoxy,a two part modelling clay over it.
A bit heavy but seems to work well.I am planning building bigger props and it needs to be lighter.
The above valuable inputs above are great.Thanks!!
I am still trying to find the most durable method with the quickest way with no fuss and no muss.It must be able to withstand hard knocks with trouping in mind.
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George Ledo
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The traditional theatrical way is to cover it with cheesecloth, applied with slightly diluted white glue. This gives it a skin that totally encloses the foam and is also a good base for something like SculptOrCoat. Another way is to do a papier-mache treatment, using either a thin fabric or tissue paper, but using a water-based polyurethane product instead of glue. I've made a few small pieces this way, using spray polyurethane, and it is amazing how hard a few layers of toilet paper get when soaked with the urethane.

You may want to check out my column on making props out of sheet foam, here in the Buffet section. I don't have a clue where the photos went to (they disappeared).
That's our departed buddy Burt, aka The Great Burtini, doing his famous Cups and Mice routine
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