Heart Slumping Mold with Rim

The Heart Slumping Mold with Rim from Creative Paradise shapes a pre-cut or pre-fused glass blank into a deep heart dish with a surrounding rim and flat bottom. Set the glass over the mold opening and fire, and gravity draws the softened blank down into the cavity to form a finished piece with an inner space of 6.5 inches by 5.5 inches and 1.75 inches deep.

The outer mold body measures 8 inches by 7.5 inches, with a total height of 2.5 inches. Like all ceramic slumping molds, this one is COE agnostic and reusable across many firings when prepped and cared for properly.

What does the Heart Slumping Mold with Rim make?
It slumps a glass blank into a deep heart shaped dish with a surrounding rim and flat bottom. The finished inner cavity measures 6.5 inches by 5.5 inches and sits 1.75 inches deep.

How does slumping work with this mold?
A pre-cut or pre-fused glass blank is placed over the mold opening. As the kiln heats, the glass softens and sinks by gravity into the heart shaped form, taking on the flat bottom and raised rim of the mold.

What COE glass can I use with 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 your glass. Re-coat as needed between firings.

Specifications

• SKU: 158193
• Manufacturer: Creative Paradise (CPI.GM20)
• Makes: 1 deep heart dish with rim and flat bottom
• Finished inner size: 6.5 inches L x 5.5 inches W x 1.75 inches deep
• Mold size: 8 inches L x 7.5 inches W x 2.5 inches T
• 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 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.
• Place a pre-cut or pre-fused glass blank over the mold opening. Size the blank so it covers the cavity and extends enough to form the finished rim when the glass slumps down.
• 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 finished dish. 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 3 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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