Another portion of clay is covered tightly in plastic wrap. This plastic-wrapped clay is pressed into the gap under the arm on the model. The application of Super Instant is repeated and the area under the arm is filled in.
Super Instant Epoxy is a very fast setting material. It has a 2.5 minute working time and cures to handling strength in 5-10 minutes. After this period, the plastic wrapped clay can be carefully peeled away from the cured Super Instant. The Super Instant will not stick to the plastic wrap and the thin film will remain in place. In the photos below you can see a close-up of the plastic-wrapped clay being removed from the glue shim under the model arm.
Once the Super Instant Epoxy has fully cured, the model is ready to for the mold making process.