NANOPOL® A 720 is a versatile dispersion of colloidal silica in n-butyl acetate solvent. The silica phase consists of surface-modified, synthetic SiO2-spheres of very small size (Ø 20 nm) and narrow particle size distribution. Despite the high SiO2-content of 50 wt%, NANOPOL® A 720 is highly transparent, low viscous and shows no sedimentation due to the agglomerate-free dispersion of the nanoparticles in the solvent.