Heart Icicle Casting Mold

The Heart Icicle Casting Mold mold from Creative Paradise casts two coneflower shaped glass pieces in a single firing. The large cavity produces a finished piece 6.75 inches lenght and 2.5 inches width.

The mold measures 8 inches lenght by 4 inches width by 2 inches tall. Creative Paradise lists a fill weight of about 70 grams. Like all ceramic casting molds, this one is COE agnostic and reusable across many firings when prepped and cared for properly.

What does the Heart mold make?
The large cavity produces a finished piece 6.75 inches lenght and 2.5 inches width.

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 about fill weight as 70 grams.  Fill weight varies with how densely you pack the 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: 183494
Manufacturer: Creative Paradise (CPI.LF279)
Mold Size: 8 L x 4 W x 1.75 T
Cavity Size: 6.75 L x 2.5 W
Fill Weight: 70 grams

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 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, Creative Paradise suggests 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.

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

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

Description updated: July 6, 2026

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