Patent ID: 7732497

Claim:
A composition formulated to form a non-smooth surface coating on a substrate surface at least after the composition has been applied to the substrate and has substantially dried or set, said composition including a first and second set of colloidal particles, each of said first and second sets of colloidal particles including a plurality of colloidal particles, each of said first and second sets of colloidal particles having an average particle size of colloidal particles, said first set of colloidal particles having an average particle size that is greater than said average size of said second set of particles, said composition including a greater number of colloidal particles in said second set of colloidal particles than a number of colloidal particles in said first set of colloidal particles; wherein the composition comprises: a) Silicon fluid 25-98 weight percent; b) Colloidal silica; and c) Colloidal silica (14-26).