Spray tip for aerosol can

In a spraying apparatus having an aerosol can holder, and an aerosol can mounted in the can holder, the can holder having a bottom wall for supporting the aerosol can, the improvement comprising a spray tip mounted on the aerosol can, the spray tip having a spraying portion having a rectangular spraying orifice and wing portions extending from the spraying portion generally parallel to the long dimension of the spraying orifice, the bottom wall of the can holder having an opening through which the contents of the aerosol can can be sprayed, a pair of inclined surfaces diverging outwardly and upwardly from the opening, each of the inclined surfaces extending in a plane which is generally parallel to a line which extends perpendicularly to the direction in which the spraying apparatus is rolled, and a pair of aligning blocks on the bottom wall between the inclined surfaces, the aligning blocks being sized and arranged to position the wing portions and the long dimension of the spraying orifice generally perpendicular to the direction in which the spraying apparatus is moved.