Round Slumping Mold

The Round Slumping Mold from Creative Paradise shapes a glass blank into a shallow round bowl in a single firing. The mold exterior measures 8 inches in diameter and 2.5 inches tall, with an inner cavity of 7 inches in diameter and 1 inch deep. Place a pre-fused or pre-cut glass blank over the primed form, fire it, and gravity draws the softened glass down to conform to the bowl shape.

Like all ceramic slumping molds, this one is COE agnostic. Use it with COE96, COE90, or other compatible fusible glass, matching your firing schedule to the glass you are using. The mold is reusable across many firings when prepped and cared for properly.

What does the Round Slumping Mold make?
It slumps a pre-cut or pre-fused glass blank into a shallow round bowl with an interior of 7 inches across and 1 inch deep.

How do I use a slumping mold?
Place a glass blank over the primed mold form. As the kiln heats, the glass softens and gravity draws it down to conform to the shape of the form.

What COE glass can I use in this mold?
Any COE. Ceramic slumping 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 do I prep the mold before slumping?
Coat the mold surface with a kiln shelf primer such as a boron nitride spray or a kiln wash such as Hotline Primo Primer, and let it dry completely before placing glass. Re-coat as needed between firings.

Specifications

• SKU: 171240
• Manufacturer: Creative Paradise (CPI.GM04)
• Makes: 1 shallow round bowl per firing
• Mold exterior size: 8 inches diameter x 2.5 inches tall
• Inner cavity: 7 inches diameter x 1 inch deep
• Material: ceramic slumping 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 slumping schedule suited to your glass and kiln.

• Prime the mold surface with a boron nitride mold primer such as ZYP Boron Nitride Mold Primer, or a kiln wash, and let it dry completely before placing glass so the glass does not stick.
• Place a pre-fused or pre-cut glass blank over the form. As the kiln heats, the glass softens and gravity draws it down into the bowl shape.
• The mold is COE agnostic. Use a slump schedule matched to your glass, adjusting the final anneal soak for your COE.
• Let the kiln cool fully before removing the slumped piece. 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.

Slump (COE96):

*Segment 2 is the anneal soak at 950 F for COE96. If using COE90, adjust this temperature to 900 F.

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Description updated: July 6, 2026

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