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Step 3Mix the alginate
Measure your alginate and water. You'll need about 350 ml each of alginate powder and water. The proportions should be close to 1-1 but err on the side of a little more alginate if you have to. Once you have measured your alginate powder, put your hands in it and fluff it up, breaking up any lumps you can find. This helps it mix better.
Pour the water into the mixing bowl or bucket first, then the alginate powder. Mixing is best done with the hands, a power mixer or whisk doesn't get the lumps very well. Squeeze lumps between your fingers to get them out. Mix as quickly as you can; when the water and alginate touch, the clock has started. You have approximately ten minutes to get the alginate on your castee's face.
We found that a good setup was to have the castee hold the bowl of alginate mix, and one helper would stand on each side.
Mix it like this:
Pour the water into the mixing bowl or bucket first, then the alginate powder. Mixing is best done with the hands, a power mixer or whisk doesn't get the lumps very well. Squeeze lumps between your fingers to get them out. Mix as quickly as you can; when the water and alginate touch, the clock has started. You have approximately ten minutes to get the alginate on your castee's face.
We found that a good setup was to have the castee hold the bowl of alginate mix, and one helper would stand on each side.
Mix it like this:
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