Description
Manganese dioxide (MnO2) colours glazes brown, purple-brown or black depending on the base glaze, and gives metallic finishes in larger amounts. It is also used to darken clay bodies and slips.
Common uses
- Glaze colourant, typically 1–8%
- Darkening clay bodies and slips
- Metallic and bronze effects
Available sizes: 1kg, 2.5kg, 5kg
Safe handling
Manganese is toxic. Wear gloves and an FFP3 dust mask, and make sure your kiln room is well ventilated, as manganese fumes are released during firing. Download the safety data sheet from our Safety Data Sheets page.




