Aluminosilicate microspheres 300–500 µm — SPH-300-500A
A controlled coarse 300–500 µm A-series cut with a white to light grey color profile.
SPH-300-500A — 300–500 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
- 0.35–0.45 g/cm³
- True density
- 0.75–0.85 g/cm³
- Sinkers
- < 5 %
- Moisture
- ≤ 0.5 %
- Color
- white to light grey
- pH
- 7.0–9.9
When should you consider SPH-300-500A?
The 300–500 µm cut concentrates larger microspheres while limiting fine particles. It is worth evaluating in lightweight construction materials, thicker sections and thermal insulation systems where the process geometry allows the use of a coarser particle range.
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