Casting Molds

Kiln casting molds are refractory forms that shape molten glass during a casting firing, letting you turn frit, billet, or compatible scrap into finished sculptural and functional pieces. This category gathers open-face casting molds for fused glass work, with a selection led by dominant brands such as Creative Paradise.

What's in this category at AGS

The selection covers casting molds across jewelry blanks (1 inch rounds, discs, and squares for Cast-A-Cab work), ornaments and icicles (cardinals, deer, snowflakes, faceted and crystal flakes, Christmas trees, Christmas pickles), garden and yard stakes (bees, bunnies and carrots, dandy daisies), tiles in 4 inch and 6 inch formats, dragonfly and butterfly motifs, florals like columbine and magnolia fritters, double succulents, dot coasters, bowl and extra small easels, bar handle and knob molds, bails, and cylinder dam molds for billet or ingot pours. The assortment includes molds and select casting tools from leading brands in the field.

Choosing a mold for your project

Pick by finished form first, then by the glass you plan to feed it. Many molds here are designed for frit or compatible sheet scrap, and deeper casting forms and dam-style molds can also take larger glass charges when the mold instructions support it; they work across COE 90 and COE 96 systems since the mold material itself is COE neutral. Smaller jewelry and Cast-A-Cab molds are good for testing color blends with limited glass, while tiles, easels, and ornament molds give you more surface for layering frit, stringers, or shards.

Firing and usage notes

Casting molds need to be prepped with kiln wash or boron nitride before each firing to keep glass from sticking and to protect mold detail. Schedules vary by glass volume and mold depth: deeper pours need longer ramps and a higher process hold to let the glass flow fully into the relief, followed by a controlled anneal soak sized to the thickest finished area. Fire on a flat, level shelf and avoid overfilling so glass does not spill onto the kiln floor. With proper prep and reasonable firing temperatures, these molds are reusable across many firings.

Uses and applications

Finished casts serve as pendants and cabochons, suncatchers, seasonal ornaments, garden and plant stakes, drawer pulls and cabinet knobs, coasters, decorative tiles, votive accents, and small sculptural objects. Many makers build a repeatable line of retail pieces from a handful of molds, while others combine cast elements with sheet glass, copper foil, or leaded panels for mixed work.