Most of the fins I make are finished with PE gloss resin fine sanded & polished. These two flexy ones were just sanded. Because that hid the logo I masked off a small area and dusted with Rust-Oleum 2X ultra cover gloss clear (rattle can). Then wet sanded with 800 & 1000. Made a ‘window’ to be able to see into the logo. Been using the 2X for some other applications with success too.