Speedball Mid-Fire Glaze: Blackened Copper

Blackened Copper is a glossy metallic glaze that embodies a deep copper finish with rich black undertones throughout. Apply a few extra layers
to achieve bright shiny copper toned flashes!

Glazes are designed for firing between 1159°C-1243°C (cone 5 to cone 6).
For stoneware clay bodies.

1159°C-1207°C (cone 5).
Satin, black where thin with copper reds.

1185°C-1243°C (cone 6).
Glossy, copper reds with copper metallic flashes.

Recommended 3 heavy applications.

Other details: No slow cool.

Speedball Mid-Fire Glazes are certified dinnerware safe when used according to manufacturer’s directions. Independent testing is
recommended when multiple colours are used on a singular piece and/or prior to introducing into commerce.

• Speedball Mid-Fire SDS (PDF)