Dot Coaster Casting Mold

The Dot Coaster Casting Mold from Creative Paradise casts one square coaster with a dot-textured surface per firing. The cavity measures 4.25 inches by 4.25 inches and 0.75 inches deep, sized to fit the base of a standard drink glass. The mold footprint is 4.75 inches square, with a diagonal of 6.75 inches.

Like all ceramic casting molds, this one is COE agnostic. Fill the cavity with frit, small billets, or stacked sheet scrap and fuse to the coaster shape. As a kiln casting mold it is reusable across many firings when prepped and cared for properly.

What does the Dot Coaster mold cast?
It casts one square coaster per firing with a dot-textured surface. The finished coaster measures approximately 4.25 inches by 4.25 inches and fits the base of a standard drink glass.

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 casting?
Coat the cavity 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: 156928
• Manufacturer: Creative Paradise (CPI.GM135)
• Makes: 1 square coaster per firing
• Finished piece size: approximately 4.25 inches x 4.25 inches
• Mold size: 4.75 inches L x 4.75 inches W x 1.25 inches T
• Diagonal: 6.75 inches
• Inner cavity: 4.25 inches L x 4.25 inches W x 0.75 inches deep
• 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 cavity 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. The cavity is 0.75 inches deep, giving you room to load a substantial amount of glass for a solid cast coaster.
• 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 coaster. 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: Fill Weights for Casting Molds (PDF) · Casting Mold Tips (PDF)

Description updated: July 6, 2026

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