Abstract: A pressurized aerosol package contains a metal-containing catalytic mixture of the type used in catalytic heaters. The mixture could contain, for example, chloroplatinic acid, with other materials, such as aluminum oxide, dextrose and triethanolamine all dissolved and mixed in water. In use, the mixture is sprayed onto, and impregnates, expended carrier pads of catalytic heaters to revive the pads and permit continued use of the heaters. In addition, the mixture can be sprayed into the exhaust system of an operating engine to coat the inner walls of the muffler of the system for antipollution purifying purposes.