We are asked about non-hardening clay and plastilina casting and molding often. Here’s a video to show you the process.

First, you have to make the shape from the non hardening clay. I’m going to assume you’ve done that.

Now place your shapes into a mold box. You can use a plastic container like we used here, or a bowl, or some people make mold boxes using legos .

Spray a touch of Bubble Buster on to the clay shapes. This reduces surface tension so bubbles won’t stick to the surface as much.

Melt the ComposiMold in the microwave or use any heat source to melt. Don’t go above about 180 F.

Let this cool to about 120 to 130 F prior to pouring this over your non-hardening clay. Non-hardening clay usually consists of a wax with particles in it and typically have a melting poing of about 145 to 150 F. So make sure your ComposiMold is cooler than this before pouring.

Then just let this cool and you have your mold. Because the clay doesn’t harden, it’s unlikely that you’ll be able to pull the shapes out of the mold without damaging, but the best process is to pull the ComposiMold away from the clay and flex it around. You might like the ComposiMold-Flex because it is softer and easier to pull away, but ComposiMold-Original will also work fine.

Then use whatever you’d like for your casting material. We use epoxy resin here, but you could use soaps, waxes, resins, epoxy clay, and even chocolate if you haven’t used the ComposiMold for non-food materials first.

Let me know what questions you have, and thank you from ComposiMold.