Lifecasting - hands

Step 7: Mix molding compound

Place the beater into the powder in the molding container, and add water while mixing. You'll need to be holding the container during the mixing as it is fairly viscous, so you may need an assistant, or stop the mixer while adding water.

Try to keep the beaters below the surface of the water to avoid adding more air to the mixture as this will result in bubbles in your mold.

Also do not beat the mixture for more than 45 seconds or so. Remember that this is a 3 minute cure molding compound. If you mix for too long you'll end up with a bad mold. Don't worry if the mixture still looks lumpy and not completely mixed.

If you have a vacuum chamber you can remove some of the bubbles from the molding compound by pulling a light vacuum from it. It may foam up, so be prepared with a large container, or a willingness to clean up a mess.

Alternately, firmly rapping the container against the table should bring up many bubbles as well.