Large Organic Bowl Slumping Mold

The Large Organic Bowl Slumping mold from Creative Paradise takes a round glass blank and drapes it into a wide, organically shaped bowl in a single firing. The mold measures 11 inches in diameter and 4.75 inches tall, with a slump depth of 3.5 inches, giving the finished piece a full bowl profile rather than a shallow plate.

A pre-fused round blank is placed over the form and heated so the glass softens and settles under gravity into the mold's curved interior. Like all ceramic slumping molds, this one is COE agnostic and reusable across many firings when prepped and cared for properly. Creative Paradise provides a suggested slump schedule for a double layer of COE96 glass.

What does the Large Organic Bowl mold make?
It slumps a round glass blank into a single organically shaped bowl, roughly 11 inches across and 3.5 inches deep.

What glass blank do I need?
You need a round fused blank or cut sheet sized to drape over the 11 inch diameter form. A two-layer round trimmed to just overhang the opening is a common starting point; test a first firing to confirm the right blank size for your glass and kiln.

What COE glass can I use?
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 (for example ZYP) or a kiln wash such as Hotline Primo Primer, and let it dry completely before placing your glass. Re coat between firings as needed.

Specifications

• SKU: 154599
• Manufacturer: Creative Paradise (CPI.GM88)
• Makes: 1 organic bowl
• Finished piece size: about 11 inches diameter, 3.5 inches deep
• Mold size: 11 inches diameter x 4.75 inches tall
• Slump depth: 3.5 inches
• 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 your glass so the glass does not stick to the mold.
• Place a pre-fused round blank over the form. As the kiln heats, the glass softens and gravity draws it down into the mold's organic bowl shape.
• The suggested schedule below is designed for a double layer of COE96 glass. Adjust soak times and peak temperature for different thicknesses or COEs.
• The mold is COE agnostic. Use a slump schedule matched to your glass, adjusting the final anneal soak temperature for your COE.
• Let the kiln cool fully before removing the bowl. 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, double layer):

*The anneal soak at 950 F applies to COE96. If using COE90, adjust this temperature to 900 F.

Helpful downloads: Organic Bowl Tutorial (PDF)

Description updated: July 6, 2026

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