A method for forming and adhering an entrained polymer structure to a substrate, comprising the steps of: a) providing a substrate configured to receive application of an entrained polymer in molten form, wherein the entrained polymer comprises a base polymer, a mineral active agent, and a channeling agent; and b) applying the entrained polymer in molten form in a predetermined shape to a surface of the substrate, to form thereon a solidified entrained polymer structure, the solidified entrained polymer being a monolithic material, wherein the surface of the substrate is compatible with the entrained polymer in molten form so as to thermally bond therewith and to adhere thereto, and wherein the entrained polymer solidifies upon sufficient cooling to form the monolithic material, and wherein the solidified entrained polymer structure comprises passages formed of the channeling agent that penetrate through the base polymer and may be interconnected with each other, wherein the method is carried out using a hot melt dispensing apparatus comprising: an extruder for providing a flow of the entrained polymer in molten form; one or more hoses, each of which having an internal lumen in fluid communication with an exit of the extruder to receive flow of the mineral entrained polymer in molten form, the lumen terminating at an applicator to which the entrained polymer in molten form is conveyed; the applicator comprising a dispenser for applying the entrained polymer in the predetermined shape to the surface of the substrate. a) providing a substrate configured to receive application of an entrained polymer in molten form, wherein the entrained polymer comprises a base polymer, a mineral active agent, and a channeling agent; and b) applying the entrained polymer in molten form in a predetermined shape to a surface of the substrate, to form thereon a solidified entrained polymer structure, the solidified entrained polymer being a monolithic material, wherein the surface of the substrate is compatible with the entrained polymer in molten form so as to thermally bond therewith and to adhere thereto, and wherein the entrained polymer solidifies upon sufficient cooling to form the monolithic material, and wherein the solidified entrained polymer structure comprises passages formed of the channeling agent that penetrate through the base polymer and may be interconnected with each other, wherein the surface of the substrate is compatible with the entrained polymer in molten form so as to thermally bond therewith and to adhere thereto, and wherein the entrained polymer solidifies upon sufficient cooling to form the monolithic material, and wherein the solidified entrained polymer structure comprises passages formed of the channeling agent that penetrate through the base polymer and may be interconnected with each other, an extruder for providing a flow of the entrained polymer in molten form; one or more hoses, each of which having an internal lumen in fluid communication with an exit of the extruder to receive flow of the mineral entrained polymer in molten form, the lumen terminating at an applicator to which the entrained polymer in molten form is conveyed; the applicator comprising a dispenser for applying the entrained polymer in the predetermined shape to the surface of the substrate.