Bullseye Glass Mold #8981, Soap Dish Slumping Mold 6.25"

The Bullseye Glass Soap Dish Slumping Mold (design number 8981) is a ceramic slumping form that shapes a flat glass blank into a soap dish. A pre-cut or fused sheet of glass is laid over the mold, then heated in a kiln so the glass softens and settles into the dish contour by gravity. Outer mold dimensions are 6 inches by 4 inches by 0.8 inches deep (15 x 10 x 2 cm), a compact footprint suited to standard soap dish proportions and easy to fit in most kilns.

The mold is slipcast from a specially formulated clay body by Creative Ceramics in Europe and imported and sold by Bullseye Glass. Its surface is exceptionally smooth, accepts kiln wash uniformly, and does not crack under repeated proper use. As a ceramic slumping form it is COE agnostic, so it works with COE90, COE96, or other compatible fusible glass. Match your firing schedule to the glass you choose.

What does this mold make?
It slumps a flat glass blank into a soap dish shape. The finished piece has a gentle dish profile suited to holding a bar of soap or serving as a small decorative tray.

How does a slumping mold work?
A pre-cut or fused glass blank is placed over the coated mold surface. As the kiln heats, the glass softens and conforms to the contour of the form by gravity, then holds that shape as it cools. The piece is removed only after the kiln has cooled fully.

What size glass blank do I need?
The outer mold dimensions are 6 x 4 x 0.8 inches (15 x 10 x 2 cm). These molds are handmade and vary slightly in size, so measure your specific mold before cutting your glass blank to ensure a good fit.

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

Specifications

• SKU: 162949
• Manufacturer: Bullseye Glass (made by Creative Ceramics, imported by Bullseye Glass)
• Design number: 8981 (store code BG8981, item number 008981-MOLD-M-EACH)
• Makes: soap dish shape
• Outer mold size: 6 inches L x 4 inches W x 0.8 inches deep (15 x 10 x 2 cm)
• Material: slipcast ceramic kiln slumping mold, reusable
• Surface: smooth, accepts kiln wash uniformly, does not crack under repeated proper use
• 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 with a kiln wash such as Hotline Primo Primer and let it dry completely before setting the glass. A boron nitride primer such as ZYP Boron Nitride Mold Primer may also be used if preferred.
• Cut or prepare a glass blank sized to fit the mold. These molds are handmade and vary slightly, so measure your specific mold before cutting.
• Place the glass blank over the coated mold surface and fire using a slumping schedule suited to your glass. Visually confirm the slump during firing if your kiln allows, and adjust hold times as needed.
• The mold is COE agnostic. Match your slumping temperature, hold time, and anneal soak to the glass COE you are using.
• Let the kiln cool fully before removing the slumped piece. Recoat the mold 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 kiln, 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. Adjust hold times and temperatures for your specific kiln, glass thickness, and form depth.

AFAP means as fast as possible: the kiln cools at its natural rate with the door closed. The anneal soak in segment 2 is at 900 F; adjust this temperature to match your glass COE if needed.

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

Description updated: July 6, 2026

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