Holey Large Round Buttons Kiln Casting Mold

The Holey Large Round Buttons mold from Creative Paradise casts two round button shapes per firing, each measuring 1.75 inches in diameter. The hole detail in each piece gives the finished result the look of an oversized button, suited to jewelry pendants, fiber art accents, and mixed media work.

Like all ceramic casting molds, this one is COE agnostic. Fill the cavities with frit, small billets, or stacked sheet scrap and fuse to cast the button shape. The manufacturer lists roughly 22 grams of glass per cavity. As a kiln casting mold it is reusable across many firings when prepped and cared for properly.

What does the Holey Large Round Buttons mold make?
It casts two round button shapes with holes, each 1.75 inches in diameter, in one firing. They suit jewelry pendants, fiber art accents, and mixed media projects.

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.

How much glass do I need per button?
Creative Paradise lists about 22 grams per cavity. Fill weight varies with how full you want each button, so weigh your glass and test a first run when the result matters.

How do I prep the mold before casting?
Coat the cavities with a kiln shelf primer such as a boron nitride spray (for example ZYP) or a kiln wash such as Hotline Primo Primer, and let it dry completely before adding glass. Re coat as needed between firings.

Specifications

• SKU: 9476
• Manufacturer: Creative Paradise (CPI.LF88)
• Makes: 2 round button shapes with holes
• Finished piece size: 1.75 inches diameter each
• Suggested fill weight: about 22 grams per cavity
• 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, and let it dry completely before adding glass so the glass does not stick.
• Fill with frit, small billets, or stacked sheet scrap. For a tack fired surface, the manufacturer suggests powder and fine frit filled uniformly to about a quarter inch.
• The mold is COE agnostic. Use a full fuse 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.

Full Fuse (COE96):

Tack Fire (COE96): for a tack fired surface, fill uniformly to about a quarter inch with powder and fine frit.

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

Helpful downloads: Fused Glass Buttons Tutorial (PDF) · Fill Weights for Casting Molds (PDF) · Casting Mold Tips (PDF)

Description updated: July 6, 2026

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