| abstract |
Provided is an anti-fouling composition that satisfies relational expression (1) and that comprises: a tetrafunctional silane compound (A) having a specific structure; a trifunctional silane compound (B) having a specific structure; and at least one metal catalyst (C) selected from the group consisting of titanium catalysts, aluminum catalysts, tin catalysts and zinc catalysts. Expression (1): 1.5≤y≤2x+1 [in the formula, x represents the carbon number of the alkyl group selected as R 2 in formula (b), which represents silane compound (B), and is a number in the range 4-22. y represents the content ratio ((A)/(B)) of silane compound (A) and silane compound (B) in terms of molar ratio. |