Mold Making • Alginate

2015-02-16T15:09:56

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

Statistics: Posted by jschrempp — Mon Feb 16, 2015 3:09 pm

Mold Making • Re: DAP Plaster of Paris / hobby or craft version?

2015-02-16T14:56:23

According to James A Mason (good name) at DAP

The Hobby and Craft formulation is formulated to release easier from molds when used for casting.
Application of a bond breaker material is still required when using the material for casting.

Statistics: Posted by jschrempp — Mon Feb 16, 2015 2:56 pm

Schrempp Makers

Mold Making • Alginate

Mold Making • Re: DAP Plaster of Paris / hobby or craft version?