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How To Cast a Face in Plaster

Step 11Cleanup

Cleanup
Extra mixed alginate or plaster is not really usable so be careful to mix as close to the exact amount as you can. Cleanup is pretty simple if you managed not to get any alginate or plaster into anything porous. Both substances will break or peel off the plastic buckets, most metal, etc.

Plaster is a bit harder to deal with in, for example, the mixing bucket - it's best to rinse it out before it sets. But don't pour it down a drain for it to set there... pour it into a plastic bag and let it cure, then discard the excess water and toss the bag in the trash. You will also want to rinse the mixing stick if it's not a throwaway.

For small splashes - and for any alginate cleanup - it's much easier to wait until it sets, than to try to clean up the wet mess. Alginate peels easily off skin once it has set, and plaster is only slightly more difficult.
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I'm a founding member of Noisebridge (https://noisebridge.net), a hackerspace in San Francisco, and Ace Monster Toys (http://acemonstertoys.org/), in Oakland. If you're in the area, stop by and say h...
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