92% Sio2 Densified Microsilica Low Volume Silica Fume Save Shipping Cost for Hydraulic Engineering & Oil Well Cementing

92% Sio2 Densified Microsilica Low Volume Silica Fume Save Shipping Cost for Hydraulic Engineering & Oil Well Cementing. 99.9% high purity, electronic grade amorphous nano silica powder transparent colloid. Nano size particle, large specific surface area with excellent activity. Low impurity formula, stable batch to batch consistency. Good dispersibility, effectively avoid particle agglomeration. Versatile for electronics, coatings, rubber and composite material applications.