Smooth-On fan Jon N. created this video showing how he makes a silicone mold and casts resin to make a metal cold casting. The original model is a plastic bust of Abraham Lincoln. After the brush-on silicone mold is made, plaster bandages are used to create a rigid support shell. To create the casting, Jon mixes bronze metal powder and pigment with Smooth Cast 325 resin to create the real metal finish.