| abstract |
PROBLEM TO BE SOLVED: To provide an exterior coating excellent in water repellency, dirt resistance, washing resistance and weather resistance, which is applied to a surface such as a painted surface of an automobile to impart water repellency and can be easily finished by wiping after application. A surface water-repellent protective agent for a surface is provided. SOLUTION: Moisture curable liquid silicone oligomer A is 100 parts by mass, A curing catalyst B is 0.1 to 40 parts by mass, and linear modified polydimethylsiloxane C having silanol groups at both terminal groups is 1 to 100. Consists of parts by mass, and further comprises at least one or more of a silicone-based volatile solvent, a hydrocarbon-based volatile solvent, and a polar group-containing volatile solvent, and dissolves or disperses each component of A, B, and C. The surface water-repellent protective agent for exterior surfaces containing 500 mass parts or less of the volatile solvent D which can be made with respect to a total of 1 mass part of each component of A, B, and C. [Selection figure] None |