2 products

Hollow, spherical aluminosilicate particles derived from coal fly ash. Low density, high mechanical strength and resistance up to 1 200 °C. Certified batches, consistent supply from Chinese ports.

Amorphous silica with SiO₂ purity ≥ 83.9% and strength activity index 89.8%. By-product of silicon/ferrosilicon smelting in electric arc furnaces. Verified batches, COA documentation, delivery from Chinese ports. Complies with ASTM C1240 and EN 13263.