Aqueous coating compositions containing (1) a first polymer containing
reactive functional groups with a selected level of carboxylic acid
functionality and (2) a polyfunctional crosslinker agent containing
functional groups that are reactive with appropriate functional groups of
the first polymer, are disclosed. The two-component polymer compositions
provide a combination of durability and ready removability of the final
coating after curing. Two-component polymer compositions based on the
first polymer containing hydroxyl functionality in addition to carboxylic
acid functionality and use of a polyisocyanate as the polyfunctional
crosslinker agent are especially useful as floor polish compositions.