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The Studio outlet of Katherine Hagstrum and Alvin Sandler

in Historic Bisbee, Arizona, an oasis high above the Sonoran Desert


THE LOST WAX PROCESS
Tamino, now a model in fiberglass, looks like the bronze sculpture it will become upon
commission, but there are several stages in the process.

First the model is removed to the foundry. Next, perfect molds are made in sections of every
part and detail. These involve an inner mold and a mold matrix, called the "mother mold".
A wax casting is prepared next. This "wax" must be perfect in every detail, in thickness and
structure, because it will become the bronze. The ancient process of "lost wax", though now
improved by modern materials, is essentially unchanged since 500 B.C. It is an exciting process.

The "wax" is coated with a glass-like mold and baked. The wax is "lost" in the burn-out. Molten
metal is poured into the mold, embodying the space that had been wax. Allowing 24 hours to cool,
the mold is removed by hammering and sand-blasting. This reveals the unfinished bronze. Assembly,
finishing and patina are accomplished under the artist’s direction, resulting in a glowing bronze sculpture.

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Art Entrée Email<ArtEntree@ArtEntree.net> Tel: 520 432 7217 P.O. Box 1587, Bisbee, Arizona 85603

Art Entrée offers fine art in many media: paintings, original prints, monotypes, sculpture, drawings, reproductions.