When wetted my CF tubing looks amazing. But after about a minute it dry's and is very dull. I have heard urathane helps, so I went to the local hardware store. They had regular brush on, wipe on and spray on. I liked the idea of wipe on, but I found some spar urathane (supposed to be a little more heavy duty and thicker, used on boats I believe) but was only available in spray. The first coat is on the top tube of the rocket, I plan on doing 3 coats, sanding, then doing a few more coats and seeing how it looks. If it looks great, then well great, if it doesnt I will sand and do some more. I have decided to not use the PML finishing epoxy as stated above, because I am using the polyurethane. Also, because some epoxy from the fillets got onto the tubing inbetween the fins (cant sand becasue fins are in the way) I have decided to leave the 2.5"s of tubing below the fins, and the CF tubing above them natural CF color. The fins and airframe inbetween will be painted.