Small Oval Shelf Ring Slumping Mold

The Small Oval Shelf Ring Slumping Mold from Creative Paradise is a ceramic ring form that slumps oval glass pieces into a gently dropped curve. The ring sits flat on the kiln shelf with an open center, and a pre-made oval blank or casting is placed over the opening. As the kiln heats up, the glass softens and sags through the ring by gravity, taking on a dimensional drop. Creative Paradise designed this form to pair with the Small Oval Dam Casting Mold, so the two can be used in sequence: cast the oval first in the dam mold, then slump it over this ring for depth.

The overall mold footprint is 6 inches by 5 inches, with a center opening of 4.25 inches by 3.25 inches. Like all ceramic kiln molds, this ring is COE agnostic and reusable across many firings when prepped and cared for properly.

What does the Small Oval Shelf Ring Slumping Mold make?
It gives a pre-made oval blank or casting a dimensional dropped curve by letting the glass sag through the ring opening under gravity during firing. The shape follows the 4.25 inch by 3.25 inch center opening.

How does it work with the Small Oval Dam Casting Mold?
Creative Paradise designed this ring to accept castings made with the Small Oval Dam Casting Mold. Cast your oval first in that dam mold, then place the finished casting over this ring and fire a drop schedule to add a curved dimension.

What COE glass can I use with this mold?
Any COE. Ceramic slumping molds are COE agnostic, so the same ring 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 ring 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 as needed between firings.

Specifications

• SKU: 165097
• Manufacturer: Creative Paradise (CPI.GM234)
• Technique: slumping / drop
• Mold size: 6 inches L x 5 inches W
• Opening size: 4.25 inches L x 3.25 inches W
• Pairs with: Small Oval Dam Casting 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 drop schedule suited to your glass and kiln.

• Prime the ring 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.
• This mold is designed to pair with the Small Oval Dam Casting Mold. Cast your oval first in the dam mold, then slump it over this ring for a dimensional drop.
• The mold is COE agnostic. Use a drop schedule matched to your glass, adjusting the anneal soak temperature 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.

Drop Schedule (COE96): suggested for a double layer of COE96 glass.

*Segment 3 is the anneal soak at 950 F for COE96. If using COE90, adjust this temperature to 900 F.

Helpful downloads: Oval Koi Bowl Tutorial (PDF)

Description updated: July 6, 2026

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