Celestial Frit Casting Mold

The Celestial Frit Casting Mold from Creative Paradise fires five celestial shapes in a single session: a large sun, a small sun, a large moon, a small moon, and a star. The finished pieces range from 1 inch to 2.5 inches in length, making them well suited to pendants, ornaments, earring fronts, or mosaic accents. The mold footprint is 8 inches by 6.5 inches.

Like all ceramic casting molds, this one is COE agnostic. Fill each cavity with frit, small billets, or stacked sheet scrap and fuse to the shape of the cavity. Fill weights range from 3 grams for the star up to 42 grams for the large sun. The mold is reusable across many firings when prepped and cared for properly.

What does the Celestial Frit Casting Mold make?
It casts five celestial shapes in one firing: a large sun, a small sun, a large moon, a small moon, and a star. Finished pieces range from 1 inch to 2.5 inches and are well suited to jewelry blanks, ornaments, and mosaic pieces.

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 these fill weights: large sun 42 grams, small sun 12 grams, large moon 20 grams, small moon 8 grams, and star 3 grams. 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: 166508
• Manufacturer: Creative Paradise (CPI.LF179)
• Makes: 5 celestial shapes (large sun, small sun, large moon, small moon, star)
• Finished piece size: 1 inch to 2.5 inches
• Mold size: 8 inches L x 6.5 inches W
• Suggested fill weight: Large Sun 42 g, Small Sun 12 g, Large Moon 20 g, Small Moon 8 g, Star 3 g
• 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 each cavity with frit, small billets, or stacked sheet scrap. For a tack fired surface, use powder and fine frit filled uniformly to about a quarter inch.
• 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):

Tack Fire (COE96): for a tack fired surface, fill uniformly to about a quarter inch with powder and fine frit.

*The 950 F hold marked with an asterisk is the anneal soak for COE96. If using COE90, adjust this temperature to 900 F.

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

Description updated: July 6, 2026

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