Z-Ring Advantages

• Eliminates cold zones on firing tray
• Completely even heat across the tray surface
• Eliminates dull glaze finishes (fire scale) caused by uneven temperature in firing zone
• Optimizes depth of shade vitality of all layered ceramic applications
• Adjustable ring accommodates larger cases

Heat Pattern with Wonder Z-Ring

• Eliminates cold zones on your firing tray
• Completely even heat across tray surface
• Eliminates dull glaze finishes (fire scale) from uneven temperature in firing zone
• Eliminates internal thermal stress caused by uneven vertical muffle heat zones
• Optimizes the optical refraction (depth of shade) vitality of all layered ceramic applications
• Adjustable ring accommodates larger cases

Uneven Heat Pattern in Standard Muffle Chamber

The spaces between the coils create vertical cold zones creating uneven heating across the tray surface (horizontally).