How To Rotocast Resin for Lightweight Displays

This mold is created using Brush-On 40 mold rubber to capture the detail from the original sculpted clay model. The rubber captured perfect detail that will be reflected in the finished castings. Then ease Release® 200 is applied to the mold.

Mold Maker's Tip: Brushing a thin coat of baby powder into the mold leaves the castings with a dry, matte finish - ready to be primed and painted.

The seam on the rubber mold is aligned, and the rubber mold is seated into the one half of the Plasti-Paste® support shell. The other half of the support shell is put in place and mold straps are used to secure the rubber mold inside the support shell.

The mold is then placed on the base of a rotational casting machine. A release agent is applied to the 'capping' board that will contain the resin in the mold as it is being rotationally cast. The cap board is placed over the mold opening, and the mold is secured to the base with adjusted straps.