Aluminosilicate microspheres 150–300 µm — SPH-150-300E
A controlled 150–300 µm E-series cut with a defined medium particle-size window.
SPH-150-300E — 150–300 µm
A controlled aluminosilicate microsphere grade for industrial formulations. Final suitability should be confirmed through application testing under the intended processing conditions.
Chemical composition
- Al₂O₃
- 32–36 %
- SiO₂
- 59–63 %
- Fe₂O₃
- 1.0–2.0 %
- MgO
- 0.8–1.3 %
- TiO₂
- 0.5–1.5 %
Physical properties
- Bulk density
- 0.35–0.43 g/cm³
- True density
- 0.78–0.88 g/cm³
- Sinkers
- < 5 %
- Moisture
- ≤ 0.5 %
- Color
- light grey to grey
- pH
- 7.0–9.9
When should you consider SPH-150-300E?
The 150–300 µm cut is intended for formulations requiring a more defined medium particle window and a reduced proportion of fines. It can support control over packing, flow and process repeatability when a full particle range starting at zero is too broad for the intended application.
SPHERON E has a light-grey-to-grey colour profile and parameters developed for industrial applications. Selection should compare not only colour but also density, sinker content and material behaviour during incorporation and mixing.
Technical data describes the supplied material but does not replace an application trial. We recommend comparing adjacent fractions at the same volume loading and evaluating viscosity, surface finish, density and the mechanical properties of the finished product.
Read the particle fraction selection guide