To provide an alkyl-etherified melamine resin capable of providing a cured product excellent in hardness and water resistance in a good balance.

In an ethylated melamine resin, at least some of methylol groups in a melamine resin are ethyl-etherified, and a ratio of A to B (A/B) is in a range of 0.1 to 1.1 assuming that in IR measurement, the intensity of the O-H stretching vibration of a hydroxyl group at around 3350 cm ^-1 is A and the intensity of the C-H stretching vibration of an ethyl group at around 2980 cm ^-1 is B.