Five Hole Scrap Master Casting Mold

The Five Hole Scrap Master mold from Creative Paradise is a ceramic kiln casting mold designed to turn fusible scrap glass into a marbled glass disc. Glass is loaded into the bowl, the bowl is placed on the prepared ring base, and the assembly is fired. As the kiln heats, the glass melts and flows through five holes in the bowl into the base below, blending colors and textures into a single marbled piece that can be used as a platter or cold-worked into tiles and cabochons.

The mold assembly measures 10.25 inches in diameter and 4.25 inches tall. Fill weight is not specified by the manufacturer for this mold, so weigh your glass and test a first run to find the right amount for your result. Like all ceramic casting molds, it is COE agnostic and reusable across many firings when prepped and cared for properly.

What does the Five Hole Scrap Master mold make?
It produces a marbled glass disc in a single firing, with glass from the bowl flowing through five holes into the ring base below. The finished disc works as a platter or can be cold-worked into tiles and cabochons.

How do the five holes work?
Glass loaded into the bowl melts at temperature and flows down through five holes into the prepared ring base, where the streams blend together to create a marbled pattern in the resulting disc.

What COE glass can I use in this mold?
Any COE. Ceramic casting 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 firing?
Coat the bowl and ring base 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 loading glass so the glass does not stick.

Specifications

• SKU: 152542
• Manufacturer: Creative Paradise (CPI.GM153)
• Makes: 1 marbled glass disc per firing (use as a platter or cold-work into tiles and cabochons)
• Mold size: 10.25 inches diameter x 4.25 inches tall
• Material: ceramic kiln casting 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 casting schedule suited to your glass and kiln.

• Prime the bowl and ring base with a boron nitride mold primer such as ZYP Boron Nitride Mold Primer, or a kiln wash, and let it dry completely before adding glass so the glass does not stick.
• Load scrap glass into the bowl, place the bowl on the prepared ring base, and fire. The glass melts through the five holes and pools in the base below, blending into a marbled disc.
• Fill weight is not listed by Creative Paradise for this mold. Weigh your glass and run a test firing to determine the right amount for your result.
• The mold is COE agnostic. Use a firing schedule matched to your glass, adjusting the final anneal soak for your COE.
• Let the kiln cool fully before removing the cast disc. 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.

Scrap Master (COE96):

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

Helpful downloads: Scrap Master Tutorial (PDF) · Fill Weights for Casting Molds (PDF) · Casting Mold Tips (PDF)

Description updated: July 6, 2026

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