Bullseye Glass Mold #8961, Snack Tray 9.8" x 6.7"

The Bullseye Snack Tray mold (design #8961) is a ceramic slumping form that shapes a pre-made glass blank into a shallow tray. The outer dimensions are 9.8 inches by 6.7 inches by 1.2 inches deep, with a 1 inch rim, making it a practical size for functional serving pieces or decorative art glass.

The mold is slipcast from a specially formulated clay body by Creative Ceramics in Europe and imported by Bullseye Glass. The surface is exceptionally smooth and accepts kiln wash uniformly, and the mold does not crack under repeated proper use. To use it, coat the forming surface with kiln wash, set a prepared glass blank on the mold, and fire to slumping temperature so the glass softens and settles into the tray shape by gravity. Like all ceramic slumping forms, this mold is COE agnostic and reusable across many firings with proper care.

What does the Snack Tray mold make?
It slumps a flat glass blank into a shallow tray shape. The outer mold dimensions are 9.8 by 6.7 by 1.2 inches, with a 1 inch rim. The finished tray is suited to serving, display, or decorative glasswork.

What size glass blank do I need?
These molds are handmade and vary slightly in size, so measure your specific mold before cutting glass rather than relying on the listed dimensions alone. Cut or pre-fuse a blank to fit the form, leaving a small margin so the glass does not overhang the mold edge.

What COE glass can I use?
Any COE. Ceramic slumping forms are COE agnostic, so the same mold works with COE96, COE90, or other compatible fusible glass. Match your firing schedule and anneal soak temperature to the glass you are using.

How do I prep the mold before firing?
Coat the forming surface evenly with a kiln wash such as Hotline Primo Primer or a shelf primer and let it dry completely before placing glass on the mold. Recoat as needed between firings to prevent the glass from sticking.

Specifications

• SKU: 157134
• Manufacturer: Bullseye Glass (design #8961, item number 008961-MOLD-M-EACH; made by Creative Ceramics, imported by Bullseye)
• Store model code: BG8961
• Makes: shallow slumped tray
• Outer mold dimensions: 9.8 x 6.7 x 1.2 in (25 x 17 x 3 cm)
• Rim: 1 in (2.5 cm)
• Material: slipcast ceramic slumping form, reusable
• Glass: any COE (COE agnostic)

Working Notes

These are guidelines, not guarantees. Every kiln fires a little differently, so test a small piece first when the result matters and follow a slumping schedule suited to your glass and kiln.

• Coat the forming surface evenly with kiln wash or a shelf primer such as ZYP Boron Nitride Mold Primer and let it dry completely before placing glass on the mold.
• These molds are handmade and vary slightly in size. Measure your mold before cutting glass to ensure a proper fit.
• The mold is COE agnostic. Adjust the anneal soak temperature to match your glass: about 900 F for COE90 or 950 F for COE96.
• Visually confirm the slump during firing if your kiln allows, and stop the ramp once the glass has fully settled into the form.
• Let the kiln cool fully before removing the slumped piece. Recoat the mold surface with kiln wash as needed between firings.

Bullseye Suggested Slumping Schedule

This is a suggested starting schedule based on slumping 6mm pieces in a Paragon GL24, not a guarantee. Every kiln fires differently. Follow Bullseye's published Suggested Slumping Schedule for your glass and mold depth, and test a small piece first.

Helpful downloads: Suggested Slumping Schedules from Bullseye Glass (PDF)

Description updated: July 6, 2026

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