Aluminosilicate microspheres 0–300 µm — SPH-300A
A versatile 0–300 µm A-series grade with a white to light grey color profile.
SPH-300A — 0–300 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
- 33–39 %
- SiO₂
- 57–62 %
- Fe₂O₃
- 1.0–2.5 %
- MgO
- 0.8–1.3 %
- TiO₂
- 0.5–1.5 %
Physical properties
- Bulk density
- 0.36–0.42 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-300A?
The 0–300 µm fraction is a versatile starting point for trials in composites, dry mixes, coatings and construction materials. It combines controlled grading with a broad application range, making it useful for comparing the effects of microspheres on density, workability and finished-product performance.
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