Aluminum is a very durable interior or exterior product. HowMac stocks a 5052 alloy aluminum to cut letters and logos from. It is available in 1/8”, 1/4” and 1/2” thicknesses. 1/4” and 1/2” thicknesses may be drilled and tapped to accept a 3/16” diameter stud for mounting.
Aluminum is painted with a high quality polyurethane paint finish to your color specifications.