Recently, various types of body surfaces coatings for automobiles have been distributed due to the increasing demand for keeping the automobile clean and comfortable for a long period of time. This coating is roughly classified into “Wax”, “Polymer-based”, “Silicon-based (called glass coating)”, and so on. The effects of this are “maintaining the luster of the car”, “water repellency (water on the coated surface)”, “stain resistance (easy to clean)”, and “improving maintainability when washing the car”. In this paper, we will introduce silicon-based materials (silicone, polysilazane, organic silane) that can obtain high-hardness clear coating from the demand for high functionality that maintains and protects the aesthetic appearance of the car body. This coating material protects the painted surface of automobiles from oxidation and scratches, and maintains gloss.
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