Hearts and Stars Kiln Casting Mold

The Hearts and Stars mold from Creative Paradise casts heart and star shaped glass pieces in a compact 4 inch by 4 inch footprint. Hearts finish at 1.25 inches by 1.25 inches and stars at 1.5 inches by 1.5 inches, making the shapes a practical choice for jewelry pendants, earring fronts, and small decorative accents.

Like all ceramic casting molds it is COE agnostic. Fill each cavity with frit, small billets, or stacked sheet scrap and fire to shape. The manufacturer lists about 5 grams of glass per cavity. Because of the casting size and the cavity detail, Creative Paradise recommends taking this mold only to a tack fire rather than a full fuse, which helps preserve the definition of the heart curves and star points. The mold is reusable across many firings when prepped and cared for properly.

What does the Hearts and Stars mold make?
It casts heart shaped pieces at 1.25 inches by 1.25 inches and star shaped pieces at 1.5 inches by 1.5 inches in a single firing. The pieces work well as jewelry blanks, pendant drops, and small decorative accents.

Why does Creative Paradise recommend tack fire only?
The casting size and cavity detail are suited to a tack fire. A full fuse risks losing the definition of the curves and points in the finished pieces. Use the tack fire schedule unless you have tested and confirmed a different result in your kiln.

How much glass do I need per cavity?
Creative Paradise lists about 5 grams per cavity. Actual fill weight varies with how full you want each piece, so weigh your glass and test a first run when the result matters.

What COE glass can I use in this mold?
Any COE. Ceramic casting molds are COE agnostic, so the same mold works with COE96, COE90, or other fusible glass. Match your firing schedule to the glass you are using.

Specifications

• SKU: 2983
• Manufacturer: Creative Paradise (CPI.LF09)
• Makes: heart and star shaped glass pieces
• Finished piece size: Hearts 1.25 inches x 1.25 inches, Stars 1.5 inches x 1.5 inches
• Mold size: 4 inches L x 4 inches W
• Diagonal: 5.5 inches
• Suggested fill weight: about 5 grams per cavity
• Firing: tack fire recommended (per manufacturer, due to casting size and cavity detail)
• Material: ceramic kiln casting mold, reusable
• Glass: any COE (COE agnostic)

Working Notes

These are guidelines, not guarantees. Every kiln fires a little differently, so test a small run first when the result matters and follow a casting schedule suited to your glass and kiln.

• Prime the cavities with a boron nitride mold primer such as ZYP Boron Nitride Mold Primer, or a kiln wash such as Hotline Primo Primer, and let it dry completely before adding glass so the glass does not stick.
• Fill with frit, small billets, or stacked sheet scrap. Fill each cavity uniformly to about a quarter inch with powder and fine frit for the tack fire.
• Creative Paradise recommends taking this mold only to a tack fire because of the cavity detail and casting size. A full fuse may reduce the definition of the heart curves and star points.
• The mold is COE agnostic. Use a tack fire schedule matched to your glass, adjusting the final anneal soak for your COE.
• Let the kiln cool fully before removing the cast pieces. Re coat the mold with primer as needed between firings.
• The Slide Hi Temp brand separator is not recommended with these molds.

Creative Paradise Suggested Firing Schedule

This is a suggested COE96 starting schedule, not a guarantee. Every kiln fires differently. Test a small run and adjust the schedule for your glass and kiln.

Tack Fire (COE96):

*Segment 4 is the anneal soak at 950 F for COE96. If using COE90, adjust this temperature to 900 F.

Helpful downloads: Fill Weights for Casting Molds (PDF) · Casting Mold Tips (PDF)

Description updated: July 6, 2026

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