Abstract: The invention is wheel cover shield apparatus for masking a wheel or a wheel cover during the application of a spray foam cleaner of tire gloss. The apparatus includes a flanged concave round base that has an ergonomic apical non-slip handle and a planar sectional outer flange with an engaging locking means. The apparatus also includes at least one substantially planar ring for a given diameter wheel. Each ring is interchangeable with the base and has a variable width annular plane with an outer fillet edge and a coextensive inner flange. The inner flange has an engagable locking means. The engagable locking means has two to eight receptacles with a raised ridge or depression on the inner flange. The engaging locking means has two to eight sockets with a depression of raised ridge.