CERAMIC SHELL LOST-WAX CASTING

Repeatable Casting for Detailed Bronze Works and Series.

For small- to medium-scale artworks, complex components, editions, and repeated works, we use a ceramic shell lost-wax process to reproduce form and surface detail while coordinating mold making, wax production, shell building, firing, and pouring as one continuous workflow.

OVERVIEW

A Flexible Lost-Wax Route for Complex Forms and Repeated Works.

WHAT IT IS

Flexible molds are used to reproduce wax patterns from the original model. The wax patterns are refined, assembled with gates and runners, and coated with successive layers of colloidal-silica-bonded refractory slurry and ceramic stucco to form a heat-resistant shell. After dewaxing and firing, the preheated shell is filled with molten bronze or another selected copper alloy.

BEST SUITED FOR

Small- and medium-scale sculptures, repeated figures and components, complex relief and ornament, hollow forms, devotional works, art objects, and projects requiring consistent reproduction across an edition or production batch.

HOW WE SUPPORT THE WORK

A Coordinated Route from the Original Model to Repeat Castings.

We adapt the mold, wax, gating, and shell-building approach to the artwork, balancing detail reproduction with practical production across individual works, editions, and groups of related components.

Mold Division and Wax Reproduction

We develop flexible sectional molds and rigid support molds around the original model, planning mold divisions, seam locations, and wax reproduction according to the form, scale, and surface detail of the work.

Wax Refinement and Ceramic Shell Building

Wax patterns are produced, refined, gated, and assembled before receiving repeated coats of colloidal-silica-bonded ceramic slurry and refractory stucco. Each stage is coordinated to preserve surface detail while building a shell strong enough for dewaxing, firing, and metal pouring.

Firing, Pouring, and Production Coordination

Completed shells are dewaxed, fired, and preheated before pouring. Melting and casting are coordinated with the later removal of gates, cleaning, joining, chasing, and surface finishing already taken into account.

SELECTED WORKSHOP IMAGES

From Flexible Mold to Metal Pouring.

These images show sectional mold making, wax reproduction and refinement, ceramic shell building, drying, firing, and bronze pouring within a lost-wax casting workflow.

Applying silicone rubber to detailed sculptural models to create flexible sectional molds.

Building a sectional flexible mold around a large sculptural form, with a rigid support structure developed around it.

Completing the rigid support structure around a large, multi-part flexible mold.

Pouring molten wax into a flexible mold to produce a hollow wax pattern.

Opening a flexible mold after wax casting to reveal paired wax patterns and their connecting feed channel.

Hand-refining a detailed wax head to clean seam lines and restore small sculptural features.

Applying silica-sol slurry to a large gated wax assembly during refractory-shell building.

Dipping a gated wax section into silica-sol slurry to build an even refractory coating.

A sculptural wax assembly after successive slurry and refractory-sand coats, prepared for further shell building and drying.

Multiple coated wax assemblies drying between successive shell-building cycles.

Preheated refractory shells being removed from the firing furnace before metal pouring.

Molten bronze being poured into a row of preheated refractory shells.

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