Construction paint is used as a kind of decoration and a protective coating on the construction surface, which is required to have a certain fineness，adhesiveness, covering ability, stain-proof ability, wash-ability wearing-proof ability, heat-proof ability, flowing ability, short drying time and relatively low temperature for forming coating. Flling certain percentage of Kaolin into coating can enhance its covering ability. Kaolin as a kind of filler are almost used is all kinds of water soluble and solvent soluble paints in order to improve their performances.