Revistimiento composition, coating method, intercabiador heat and air conditioner

Silicon particles ultrafine dispersion of a composition having an average diameter of 15 nm omenor, and particles of fluororesin having an average particle 50 diameter to 500 nm in water, quetienen a concentration of ionic impurities of 200 ppm or less, wherein the content of fine particles siliceultra is 0.1 to 5 mass%, with a water content of 30 to 99.5% by mass, and a ratio demasas ultrafine particles with silica respect to the fluororesin particles from 70:30 to 95.5.