Pete: The only things that will work below the waterline is gel coat or choosing to apply antifouling bottom paint. Topsides paint, like Brightside cannot sent much time under water. With antifoul comes decision of barrier coat or no barrier coat before antifoul, shooting the waterline + 2", lifting the boat dropping the centerboard, sanding, more sanding etc. IMO paint on a couple of coats of some good gel coat (assuming you have access to a source, know about adding wax so the gel coat for the last coat so it will cure) with a brush to protect the resin and fiberglass (neither of these being able to withstand UV) and call it good when standing 20' away. (If you want nice smooth and shiny you will need to do a LOT of sanding after applying three coats of gel coat going from 400g up to 1500+ grit - and if you sand thru the gel coat starting over after rough sanding the area again with 120-150g and again applying more coats of gel coat.) :: Dave Scobie :: M6'8" #650 :: SV SWALLOW - sv-swallow.com :: former owner M17 #375 SWEET PEA - m17-375.com :: former owner M15 #288 SCRED - www.freewebs.com/m15-named-scred/ On Fri, Jul 24, 2020, 4:30 PM Peter Zimowsky via montgomery_boats < montgomery_boats@mailman.xmission.com> wrote:
Hi: The bottom of my M15 is in great shape except where the previous owner scraped a small portion of the keel; I guess from beaching the boat. What type of paint can I use on the fiberglass to touch it up and protect it. I’ve been using a white gel coat to touch up scratches pete
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