I would like to repair some small nicks and scratches on a 15' trihull fg Lund. I also would like to know if I should redo a prior patch. The boat was patched because of a crack and has been patched for ten years and hasnt leaked but looks kinda shoddy. I am new to boating but am fairly handy when it comes to repairs. I'll post pics when I can figure out how to get the kb's down. Thank You for any help