Retro Plate Slumping Mold

The Retro Plate Slumping Mold from Creative Paradise forms a shallow plate with a flat bottom from a pre-cut glass blank. The mold measures 6 inches by 6 inches with a total thickness of 1.25 inches, and the inner cavity is 5.75 inches by 5.75 inches, 0.25 inches deep. Placing a cut blank over the form and firing to a slump temperature lets gravity ease the glass into the shallow plate shape.

Like all ceramic kiln forms, this mold is COE agnostic and reusable across many firings. Coat the surface with a boron nitride primer or kiln wash before each use to prevent the glass from sticking, and re-coat as needed between firings.

What does the Retro Plate Slumping Mold make?
It slumps a pre-cut glass blank into a shallow plate with a flat bottom. The inner cavity measures 5.75 inches by 5.75 inches with a depth of 0.25 inches.

What size glass blank do I use?
The inner cavity is 5.75 inches square and 0.25 inches deep. Cut your blank to suit the finished plate size you want, keeping the inner dimensions in mind, and test a first run when the result matters.

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 boron nitride primer such as ZYP or a kiln wash such as Hotline Primo Primer, and let it dry completely before placing your glass blank. Re-coat as needed between firings.

Specifications

• SKU: 156930
• Manufacturer: Creative Paradise (CPI.GM36)
• Makes: 1 shallow plate with flat bottom
• Inner dimensions: 5.75 inches L x 5.75 inches W x 0.25 inches deep
• Mold size: 6 inches L x 6 inches W x 1.25 inches T
• Diagonal: 9.5 inches
• 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 blank.
• Place a pre-cut glass blank over or into the mold. The inner cavity is 5.75 inches square and 0.25 inches deep, so size your blank to suit the finished plate you want.
• 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 plate. 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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