A component for a manufacturing chamber comprises a coating and an anodization layer on the coating. The anodization layer has a thickness of about 2-10 mil. The anodization layer comprises a low porosity bottom layer portion having a porosity that is less than about 40-50% and a porous columnar top layer portion having a porosity of about 40-40% and comprising a plurality of columnar nanopores having a diameter of about 10-50 nm.