Abstract: A paint applicator (1) comprises a housing (3) defining a hollow interior region (4) having a circumferentially extending inner arcuate surface (20). A roller (5) provided with a circumferentially extending paint transfer surface (34) is rotatably mounted in the housing (3) about a rotational axis (7). A paint container (9) releasably secured to an inlet port (35) in the housing (3) communicates the paint container (9) with a communicating recess (37) formed into the inner arcuate surface (20) of the housing (3). The communicating recess (37) communicates the paint transfer surface (34) of the roller (5) with paint from the paint container (9) through the inlet port (35). The paint transfer surface (34) of the roller (5) cooperates with the inner arcuate surface (20) of the housing (3) in order to form a seal around the periphery of the communicating recess (37) when the roller (5) is stationary in the housing (3) to seal the paint in the communicating recess (37).