Manganese Dioxide for High-Temperature Porcelain Glazes
Short Product Description
Manganese Dioxide for High-Temperature Porcelain Glazes is a ceramic-grade MnO₂ powder with 90–98% purity, specifically processed for stable color development in oxidation and reduction kiln atmospheres. It is used as a coloring oxide in high-temperature porcelain glazes to produce dark brown, black, and metallic surface effects with controlled tone consistency.
Technical Specifications
| Parameter | Typical Range |
|---|---|
| MnO₂ Content (wt%) | 90.0 – 98.0 |
| Mn Content (wt%) | 58.0 – 63.0 |
| Fe₂O₃ (wt%) | ≤ 0.30 |
| Moisture (wt%) | ≤ 1.0 |
| Particle Size (D50) | 2 – 10 μm |
| Residue on 325 mesh | ≤ 0.3% |
| Bulk Density | 0.8 – 1.1 g/cm³ |
| Firing Temperature Range | 1200 – 1300°C |
Key Features
High MnO₂ purity ensures stable color performance in high-temperature porcelain glazes
Fine particle size distribution improves dispersion in glaze slurry
Low iron impurity minimizes unintended color shifts
Suitable for oxidation and reduction kiln firing
Consistent batch-to-batch chemical composition for industrial glaze production
Applications
High-temperature porcelain glazes – Used as a coloring oxide to achieve dark brown, black, and tenmoku-style finishes above 1200°C
Ceramic tile glazes – Provides deep tonal effects in stoneware and porcelain bodies
Artistic pottery glazes – Enables controlled surface variation in reduction firing
Industrial sanitaryware glazes – Delivers uniform dark coloration in tunnel kiln production
Packaging & Supply
25 kg woven bags with inner PE liner
1000 kg jumbo bags available upon request
Palletized and suitable for sea freight export
Custom labeling and OEM packaging supported
Customization & Technical Support
We offer adjustable particle size distribution and MnO₂ content according to glaze formulation requirements. Technical support is available for kiln testing, firing temperature optimization, and glaze compatibility evaluation to ensure consistent results in high-temperature porcelain glaze systems.
You can check out our full manganese dioxide ceremic&glass solutions here.