Bar Handle / Knobs Casting Mold

The Bar Handle / Knobs casting mold from Creative Paradise casts two glass bar handles in a single firing. Each finished bar handle measures 4.5 inches long by 1 inch wide, with screw points spaced 3 inches apart for mounting as cabinet knobs or drawer pulls. The mold produces a matched pair, making it a practical way to create custom glass hardware sets for cabinets, furniture, or decorative boxes.

Like all ceramic casting molds, this one is COE agnostic. Fill the cavities with frit, billets, or stacked sheet scrap and fuse to the bar handle shape. Fiberfrax fiber kiln paper is required for this project. Mounting hardware is sold separately. As a kiln casting mold it is reusable across many firings when prepped and cared for properly.

What does the Bar Handle / Knobs mold make?
It casts two glass bar handles, each 4.5 inches long by 1 inch wide, with screw points 3 inches apart, in one firing. They are suited for use as cabinet knobs, drawer pulls, and decorative glass hardware.

Is Fiberfrax required for this mold?
Yes. Fiberfrax fiber kiln shelf paper is required for this project. Set it beneath the mold in the kiln before firing.

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 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: 12987
• Manufacturer: Creative Paradise (CPI.LF53)
• Makes: 2 bar handles
• Finished piece size: 4.5 inches L x 1 inch W each
• Distance between screw points: 3 inches
• Suggested fill weight: about 45 grams per cavity
• Material: ceramic kiln casting mold, reusable
• Glass: any COE (COE agnostic)
• Note: mounting hardware sold separately; Fiberfrax fiber kiln paper required

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.
• Fiberfrax fiber kiln paper is required for this project. Set it beneath the mold in the kiln before firing.
• Fill the cavities with frit, billets, or stacked sheet scrap. For a tack fired surface, the manufacturer 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 handles. Re coat the mold with primer as needed between firings.
• Mounting hardware is sold separately.
• 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: Knobs and Pulls Tutorial (PDF) · Fill Weights for Casting Molds (PDF) · Casting Mold Tips (PDF)

Description updated: July 6, 2026

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