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Topic: Help needed for a full body cast?  (Read 1029 times)
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« on: November 11, 2010 03:57:36 AM »

Hey guys! For an art project I'm wanting to take a full body cast, to make a mould that could be used with food substances. Anybody got any ideas how I can do this haha?

I was thinking about taking the moulds in small sections, like limb by limb, but in the same position, using alginate and modrock (plastercast) as setter. Then to take a plaster paris cast from that, but then I haven't the foggiest what I could use to make a re-usable food safe mould after.

Am I just making this too complicated? haha

Cheers for your time reading this babble and any help offered  Smiley
Katie x

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« Reply #1 on: November 26, 2010 12:45:22 PM »

I think you're biggest problem is finding a molding material that can be used on 1. skin and 2. is food safe. There miiight be some silicone based moulding materials that you could use, but you have to be extra careful in making sure that they are skin and food safe.

Otherwise, a surefire method is to use alginate. It's algae based, skin safe, etc, and sets in minutes. Forms a flexible mold. However, the mold will only last a few hours so you better get your casting done right after you make it. If you need a more rigid mold you can make a 'shell' for it out of plaster or paper mache.

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« Reply #2 on: February 20, 2012 05:31:51 AM »

I've always used re-enforced plaster for molding my body parts, never tried to do anything larger than my hands though so ymmv.

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