Method of applying a slip-resistant coating to a spin-on filter using a

Abstract

A method of applying a curable powder coating, to a selected portion of a spin-on filter housing, uses a fluidized bed coating apparatus to provide a slip-resistant enhanced gripping surface when cured. This slip-resistant coating is applied to a selected portion of the exterior surface of the filter housing, in order to provide an easily grippable slip-resistant textured surface, once the powder has been cured. The textured coating according to the invention may be applied to a bare untreated plastic or metal surface, or alternatively, may be applied overlapping a cured layer of a conventional coating. A preferred coating is a thermosetting paint powder. In a first embodiment of the invention, a slip-resistant textured surface coating may be applied to the entire exterior surface of a spin-on filter housing, except the base plate thereof. In a second, preferred embodiment of the invention, it is desirable to limit the application of the above-described slip-resistant powder exclusively to a designated area, and to clean the area where the added powder is not wanted, in order to remove any extraneous powder from the remainder of the filter surface, and to present a visually appealing finished product. A spin-on filter having a slip-resistant textured gripping surface, which is a product of the described process, is also described.