Holey Circles Cast-A-Cab Kiln Casting Mold

The Holey Circles Cast-A-Cab mold from Creative Paradise casts two circle cabochons, each 2 inches in diameter with a hole through the center. It is designed to be used with the Mini Scrap Master pot melt mold: glass is melted in the pot above and flows down into the prepared circle cavities, making it a practical way to turn fusible scrap into finished holey circle cabochons that are ready to hang or link without drilling.

The mold footprint is 5.5 inches by 3.25 inches. Creative Paradise lists a fill of about 43 grams of glass per cavity and recommends using at least 25 grams of clear in the mix. Like all ceramic casting molds it is COE agnostic and reusable across many firings.

What does the Holey Circles Cast-A-Cab mold make?
It casts two circle cabochons, each 2 inches in diameter with a hole through the center, when used with the Mini Scrap Master pot melt mold.

How does the pot melt method work with this mold?
Glass is loaded into the Mini Scrap Master pot, which sits above the prepared Holey Circles mold. As the kiln heats, the glass melts and pours down into the circle cavities, blending your scrap into each holey cabochon.

How much glass do I need per cavity?
Creative Paradise lists about 43 grams per cavity, including at least 25 grams of clear. Weigh your glass and test a first run when the result matters.

What COE glass and prep does this mold need?
Any COE works, since the mold is COE agnostic. Prime the cavities with a boron nitride spray or a kiln wash such as Hotline Primo Primer and let it dry completely before adding glass.

Specifications

• SKU: 153035
• Manufacturer: Creative Paradise (CPI.LF130)
• Makes: 2 holey circle cabochons (pot melt)
• Finished piece size: 2 inches diameter each
• Mold size: 5.5 inches L x 3.25 inches W
• Suggested fill weight: about 43 grams per cavity (at least 25 grams clear)
• Pairs with: Mini Scrap Master pot melt mold
• 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 both circle cavities 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.
• This mold is meant to be paired with the Mini Scrap Master pot melt mold. Load the pot, set it over the prepared Holey Circles mold, and fire so the glass flows into the cavities.
• Using at least 25 grams of clear in the 43 gram fill helps the scrap blend and flow well.
• The mold is COE agnostic. Fire it with the Mini Scrap Master pot-melt melting schedule below, which works for both COE 90 and COE 96.
• Let the kiln cool fully before removing the cabochons. 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 (Mini Scrap Master Melting Schedule)

This pot-melt melting schedule works for both COE 90 and COE 96. It is a suggested starting schedule, not a guarantee. Every kiln fires differently, so test a small run and adjust for your glass and kiln.

*If your kiln runs hotter than it reads, reduce Segment 1 to 1620 F. The glass separator begins to break down above 1660 F, so do not over-fire. If the glass does not fully cast at 1640 F, add to the Segment 1 hold in 15 minute increments, or raise the temperature in 5 degree increments. Place the loaded Mini Scrap Master directly over the prepared mold on a level kiln shelf so the holes in the melting pots line up over the mold cavities. Because this is a holey mold, the 75 minute Segment 1 hold also gives the glass time to migrate around the ceramic posts that form the holes.

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

Description updated: July 6, 2026

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