Ferris See-Through Mold Compound Excellent for making a mold of an original
article. Mold compound forms a transparent rubbery substance when
baked at 350ºF, making it very easy to see
the model when cutting apart the mold. Wax is then injected into the
cavity, reproducing the original model in every detail. Mold may be
used many times. One quart makes 10 to 14 molds.