Utilizing our polymer materials technology, we made a high-heat insulating filler (silica aerogel) containing nanopores small enough to block the passage of air, into a coating liquid. This exhibits high-heat insulation properties at a level of still air or higher by coating base materials such as non-woven fabric and molded resin. In addition to vehicle use, it can also be used for a broad range of insulation applications, including electrical appliances, residences and food deliveries.