Murrini Casting Mold

The Murrini Casting Mold from Creative Paradise is a ceramic kiln casting mold made to produce murrini shapes from frit, billets, or stacked sheet scrap in a single firing. The mold measures 7.25 inches by 4.75 inches, with an 8.5 inch diagonal, giving a compact footprint suited to a range of kiln sizes. Creative Paradise lists a suggested fill of 45 grams of glass per cavity.

Like all ceramic casting molds, this one is COE agnostic. Load the cavities with your chosen glass, fire to a full fuse, and the glass takes on the murrini shape of the mold. The mold is reusable across many firings with proper preparation and care.

What does the Murrini Casting Mold make?
It casts murrini shapes from frit, billets, or stacked sheet scrap in a single kiln firing. The finished pieces are suited for use as decorative elements in fused glass panels, jewelry, and other kiln work.

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 much glass do I need per cavity?
Creative Paradise lists 45 grams per cavity as the suggested fill weight. Actual fill will vary with how deep you fill each cavity, so weigh your glass and test a first run when the result matters.

How do I prep the mold before casting?
Coat the cavities 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 adding glass. Re coat as needed between firings.

Specifications

• SKU: 162074
• Manufacturer: Creative Paradise (CPI.GM156)
• Makes: murrini shapes (frit cast)
• Mold size: 7.25 inches L x 4.75 inches W x 1.5 inches T
• Diagonal: 8.5 inches
• Suggested fill weight: 45 grams per cavity
• 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 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 so the glass does not stick.
• Fill with frit, small billets, or stacked sheet scrap. Weigh each cavity to the suggested 45 grams and adjust based on a test run.
• The mold is COE agnostic. Use a full fuse schedule matched to your glass, adjusting the final anneal soak for your COE.
• Let the kiln cool fully before removing the cast pieces. 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.

Full Fuse (COE96):

*Segment 4 is the anneal soak at 950 F for COE96. If using COE90, adjust this temperature to 900 F.

Helpful downloads: Reactive Murrini Pattern Bar Tutorial (PDF) · Fill Weights for Casting Molds (PDF) · Casting Mold Tips (PDF)

Description updated: July 6, 2026

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