Mix a batch of Body Double® STANDARD SET with Silicone Thinner® added to loosen-up the consistency of the silicone rubber and apply to the model's face. This thinner will ensure that the material picks up even the most minute of detail on the skin. Apply the second layer of Body Double® STANDARD SET directly onto the first layer after the first layer develops a tacky surface.
Mix another batch of Body Double® STANDARD SET thickened with Thi-Vex® II and apply. Thickened material is used to build undercuts (under the chin/eyebrows), fill in gaps (ears), and to quickly build thickness of the mold. Continue applying Body Double® STANDARD SET thickened with Thi-Vex® II to fill in gaps and increase mold thickness.
To speed up the process,use a heat gun to decrease the cure time of Body Double®. Be sure the heat gun does not get too hot and make the model uncomfortable. Once the Body Double® has fully cured, apply a plaster bandage support shell.