For meltable types such as “UNAGI” and “UNAGI Rainbow”, applying 3 times will make the paint film thicker and will last longer. However, please be sure to observe the amount to be applied at one time and the drying time for each application. On the other hand, with insoluble paints, the antifouling effect is limited, so there seems to be little difference between two coats and three coats. However, when painting the bottom of a ship, the “film thickness” is important, not the “number of coats”, so be sure to apply the specified amount even if the number of coats increases a little.