The purpose of the present invention is to provide a weather-resistant hard coat composition for a metal, the composition being capable of efficiently forming a coating film excelling in weather resistance, scratch resistance, and flexibility. The present invention provides: a weather-resistant hard coat composition for a metal, the composition containing a polyorganosilsesquioxane having a constituent unit represented by Formula (1); a cured product thereof; and a coated metal substrate having a metal substrate and a coating film formed on at least one surface of the metal substrate. The coating film is a layer of a cured product of the weather-resistant hard coat composition for a metal. [In Formula (1), R1 represents a group containing an active energy ray-curable functional group.]
[R1SiO3/2] (1)
本发明的目的是提供一种用于
金属的耐候硬质涂层组合物,该组合物能够有效地形成一层具有优异的耐候性、抗划伤性和柔韧性的涂膜。本发明提供:一种用于
金属的耐候性硬涂层组合物,该组合物含有一种具有式(1)表示的组成单元的聚有机
硅烷;其固化产物;以及一种涂覆
金属基底,该
金属基底具有
金属基底和在
金属基底的至少一个表面上形成的涂膜。涂膜是一层
金属耐候硬涂层组合物的固化产物。式(1)中,R1 代表含有活性能量射线固化官能团的基团。
[R1SiO3/2] (1)