Abstract: To provide an inorganic waterborne coating agent and its aqueous solution: wherein, with the surface of the base material highly-hydrophilizated, the contaminant such as oil-based contaminant and inorganic dust adhered onto the surface of the base material can be removed easily with water, and at the same time, the antistatic effect can be achieved due to its dust-repelling property; which can be applied by anyone (non-skilled) with ease without considering the base material being organic or inorganic, compared with conventional coating agents, such as photocatalyst and polysilazane-based glass coating agent that have limited range of use; and which has little limit in conditions of use, and is inexpensive and applicable to any places, thereby securing the original goal of antifouling property. To provide an inorganic waterborne coating agent comprising: alkaline colloidal silica, a sodium phosphate compound and a potassium phosphate mixture, and boric acid.

Abstract: The invention provides a water-borne complete inorganic alkali silicate composition capable of solving the problem of gelation occurred in a preservation solution without using anionic organic substances, expanding the range of application dramatically, additionally solving the problem of efflorescence after coating, which is the biggest problem when the molar ratio is low, and furthermore curing at normal temperature without baking, enabling long-lasting effects. The water-borne complete inorganic alkali silicate composition is comprised of a mixture of an alkali metal silicate including a simple or a mixture of potassium silicate or sodium silicate, a colloidal silica, and a simple or a mixture of a sodium phosphate compound or a potassium phosphate compound.

Abstract: To provide an inorganic waterborne coating agent and its aqueous solution: wherein, with the surface of the base material highly-hydrophilizated, the contaminant such as oil-based contaminant and inorganic dust adhered onto the surface of the base material can be removed easily with water, and at the same time, the antistatic effect can be achieved due to its dust-repelling property; which can be applied by anyone (non-skilled) with ease without considering the base material being organic or inorganic, compared with conventional coating agents, such as photocatalyst and polysilazane-based glass coating agent that have limited range of use; and which has little limit in conditions of use, and is inexpensive and applicable to any places, thereby securing the original goal of antifouling property. To provide an inorganic waterborne coating agent comprising: alkaline colloidal silica, a sodium phosphate compound and a potassium phosphate mixture, and boric acid.

Abstract: The invention provides a water-borne complete inorganic alkali silicate composition capable of solving the problem of gelation occurred in a preservation solution without using anionic organic substances, expanding the range of application dramatically, additionally solving the problem of efflorescence after coating, which is the biggest problem when the molar ratio is low, and furthermore curing at normal temperature without baking, enabling long-lasting effects. The water-borne complete inorganic alkali silicate composition is comprised of a mixture of an alkali metal silicate including a simple or a mixture of potassium silicate or sodium silicate, a colloidal silica, and a simple or a mixture of a sodium phosphate compound or a potassium phosphate compound.

Abstract: A method of coating a heat and oxidation resistant material onto an object, where the material is sintered at a temperature lower than the melting point of the object and the sintering temperature of the material is reduced by admixture of a modifier to the coating composition.