COATED FILM AND AQUEOUS COMPOSITION

To provide a coated film capable of maintaining the antifouling property, the alga-proofing property and the antifungal property over a long term even when exposed to an outdoor environment, and an aqueous composition that forms the coated film.SOLUTION: A coated film containing an antibacterial metal-containing compound has a total content mass of the antibacterial metal-containing compound in the coated film after passing 2500 hours by an exposure test according to JIS K 5600-7-7 of 5% or larger relative to a total content mass of the antibacterial metal-containing compound in the coated film before the exposure test, has pores in the coated film and has the porosity of the coated film of 1 to 30%.SELECTED DRAWING: None 【課題】屋外環境下に曝される場合おいても長期間に亘って、防汚性、防藻性、及び防カビ性が持続する塗膜、及びこの塗膜を形成する水系組成物を提供する。【解決手段】抗菌性金属含有化合物を含有する塗膜であって、ＪＩＳ Ｋ ５６００−７−７に準拠した曝露試験で２５００時間経過した後の前記塗膜中における前記抗菌性金属含有化合物の全含有質量が、前記曝露試験前の前記塗膜中における前記抗菌性金属含有化合物の全含有質量に対して５％以上であり、前記塗膜中に空隙が存在し、前記塗膜の空隙率が１〜３０％である、塗膜。【選択図】なし