5” Round Panel Former

The 5 Inch Round Panel Former from Colour de Verre is a reusable ceramic forming tool designed to shape glass panels that fit precisely into 5 Inch Round Lighting Hardware. It gives glass artists a reliable way to produce consistently sized panels, and the ceramic construction holds up over many firings when primed and maintained properly.

The forming surface measures 5 inches in diameter. Pre-cut or pre-fused glass panels are placed on the former and fired so the glass conforms to the shape. Prime the former before every firing with a suitable mold primer to prevent sticking and protect the ceramic surface. Like other ceramic kiln formers, it is COE agnostic and works with COE96, COE90, or other fusible glass.

What does the 5 Inch Round Panel Former make?
It shapes glass panels to fit precisely into 5 Inch Round Lighting Hardware. Each fired panel has the clean, accurate 5 inch round profile the lighting hardware requires.

What COE glass can I use with this former?
Any COE. The ceramic former is COE agnostic, so it works with COE96, COE90, or other fusible glass. Match your firing schedule to the glass you are using and adjust the anneal soak accordingly.

How do I prepare the former before firing?
Coat the forming surface with a mold primer before every use. Colour de Verre recommends ZYP BN Lubricoat or Hotline Primo Primer. Let the primer dry completely before placing glass on the former.

Is this former reusable?
Yes. The ceramic construction is built for long-term reliability across many firings. Prime it before each firing, let the kiln cool fully before removing the shaped panel, and re-coat before the next use.

Specifications

• SKU: 182160
• Manufacturer: Colour de Verre
• Makes: Glass panels shaped to fit 5 Inch Round Lighting Hardware
• Finished piece size: 5 inch round
• Former size: 5 inches diameter
• Material: ceramic kiln panel former, 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 the Colour de Verre project sheet for this former.

• Prime the forming surface before every firing. Colour de Verre recommends ZYP Boron Nitride Mold Primer or Hotline Primo Primer. Let the primer dry fully before placing glass on the former.
• Place your pre-cut or pre-fused 5 inch round glass panel on the prepared former before loading into the kiln.
• The former is COE agnostic. Use a firing schedule matched to your glass and adjust the anneal soak for your COE.
• Let the kiln cool fully before removing the shaped panel. Re-coat the former with primer before the next firing.

Colour de Verre Suggested Firing Guidelines

This is a suggested starting approach, not a guarantee. Every kiln fires differently. Follow the Colour de Verre project sheet for this former, test a small run first, and adjust for your glass and kiln.

• Prime the former before every use and let the primer dry completely before placing glass.
• Heat no faster than about 350 F (195 C) per hour during the heating phase.
• Fire to no more than about 1450 F (785 C).
• Add a controlled cool to room temperature and include an anneal soak suited to your glass: about 950 F for COE96, or about 900 F for COE90.

Helpful downloads: Priming with ZYP Spray (PDF) · Tricks of the Trade (PDF)

Description updated: July 6, 2026

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