I don't know anything about your hull but I can tell you that my gel was faded and chalky looking on my 19' Hallet and my dad and I wetsanded it and buffed it out and brought it back beautifully. It is white with candy apple red metal flake. We used 2000 sandpaper and a wetsanding block and tons of water and took off all the oxidation. Then we hit the boat with a high speed buffer and compound and polish from 3M. It looks like the day it left Hallet back in '77.