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Molding with no Special Equipment Answered

Hi, say I want to make a lot copies of a clay craft, and I don't have a special oven to mold brass stuff etc. How can I do it? So I prefer to mold in room temperature. I don't care a lot about the material, just if it isn't something weak, like gypsum. thanks.

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piaferre (author)2009-08-12

You can get a sheet of high impact polystyrene (the ones you make back light signs with) and thermoform it with an oven and a vacum cleaner into the shape of your first model. There are lots of instructables and youtube videos about this type of mold making. Since clay doesn't heat up when it dries you can use this type of mold. Hope this helps, good luck!

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lemonie (author)2009-07-12

You can get this plastic that softens in hot water, or there's silicone. What material will you be making the replicas out of? L

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merijnvw (author)lemonie2009-07-12

I was going to choose the material from the suggestions I would get here, but I want it to be strong(or flexible) enough for miniature sculptures to be able to fall from a table, and it needs to be able to hold detail. Would that plastic work for that?

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lemonie (author)merijnvw2009-07-12

Yes the thermo-plastic would work, but you're after a mould here. I've done some high-detail lead-castings with Polyfilla (it's a bit like plaster). On an unrelated topic I've almost finished a Lego microtome, hope to post that soon. L

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merijnvw (author)lemonie2009-07-13

Yes a want the mold but also tips on what material to pour into the mold, i'm not familiar with molding at all. thanks

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merijnvw (author)lemonie2009-07-13

Ok thanks, I'll give it a look

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