Molds to hold plaster of Paris, pewter, resin, etc.
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Postby jschrempp » Mon Feb 16, 2015 3:09 pm

I used 1 pound of alginate in 7 cups of 80 degree water. It set very quickly, but not too bad. Next time I would make the water cooler or add more to slow the setting. It has a pleasant smell.

I made a mold form from old cardboard, lined with a plastic supermarket bag. Not sure that I needed the bag; the alginate is very thick. One pound was enough to cover my hand to just beyond my wrist.

It turned gray/white in about 3 minutes and I was able to pull my hand free. All hair remained on my arm. Filled the form with plaster of Paris and the resulting cast was incredibly detailed.

$15 on Amazon prime.

1lb (454g) Create-A-Mold Alginate Molding Powder by Casting Keepsakes

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