Abstract
New preparation method of thick coating films has been developed. The thickness was over 1 micron, and the heat treatment temperature was below 200 degree C. Reaction control of silica precursor was one of the most important factors. The films were organic-inorganic Hybrid, but the mechanical strength was as high as float glass. Introducing ITO particles into the film, a heat-shielding coating was prepared. The coating had been adopted for automotive window firstly in the world since 2005. This new technique expanded the possible application fields of sol-gel coating.