Sushi Slumping Mold

The Sushi Slumping Mold from Creative Paradise is a ceramic kiln form that drapes a pre-made glass sheet or fused blank into the shallow, elongated contour of a sushi dish. The mold measures 11 inches long by 9 inches wide, with a diagonal of 14.25 inches. Creative Paradise lists it as GM229 and designed it to be used with the GM110 mold.

Place a cut glass blank on the prepared form, fire to a slumping schedule, and gravity settles the glass down to conform to the sushi dish shape. Like all ceramic kiln forms, this mold is COE agnostic and reusable across many firings when prepped and cared for properly.

What does the Sushi Slumping Mold make?
It slumps a glass sheet or fused blank into the shape of a sushi dish. The finished piece follows the 11 by 9 inch mold contour.

What size glass blank do I need?
Cut a blank to cover the form. The mold is 11 inches long by 9 inches wide with a 14.25 inch diagonal, so size your blank accordingly and test a first run to confirm the fit.

What COE glass works with this mold?
Any COE. Ceramic kiln forms 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 form surface with a kiln shelf primer such as a boron nitride spray or kiln wash, and let it dry completely before placing glass on the form so the glass releases cleanly after firing.

Specifications

• SKU: 164829
• Manufacturer: Creative Paradise (CPI.GM229)
• Shape: sushi dish slumping form
• Mold size: 11 inches L x 9 inches W
• Diagonal: 14.25 inches
• Pairs with: GM110 mold
• Material: ceramic kiln 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 form surface 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 placing glass so the glass releases cleanly.
• This mold is designed to be used with the GM110 mold. Refer to Creative Paradise documentation for how the two forms are used together.
• Cut your glass blank to fit the form. A pre-fused blank or a single sheet of fusible glass both work for slumping.
• The mold is COE agnostic. Use a slumping 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.

Description updated: July 6, 2026

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