Aluminosilicate microspheres 0–150 µm — SPH-150A
A fine 0–150 µm A-series grade for formulations requiring a smaller maximum particle size and lighter color.
SPH-150A — 0–150 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
- 33–39 %
- SiO₂
- 57–62 %
- Fe₂O₃
- 1.0–2.5 %
- MgO
- 0.8–1.3 %
- TiO₂
- 0.5–1.5 %
Physical properties
- Bulk density
- 0.36–0.44 g/cm³
- True density
- 0.75–0.85 g/cm³
- Sinkers
- < 10 %
- Moisture
- ≤ 0.5 %
- Color
- white to light grey
- pH
- 7.0–9.9
When should you consider SPH-150A?
The 0–150 µm fraction is intended for evaluation in thin coatings, polymers, fine compounds and processes with restricted dosing clearances. Its smaller maximum particle size supports smoother surface design, while rheology, incorporation and mixing conditions must still be confirmed in the target formulation.
SPHERON A has a white-to-light-grey colour profile and is intended for projects where material appearance and lower true density are important selection criteria. The actual visual and performance result should be verified using a representative application sample.
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