Barrier coat (epoxy as InterLux 2000/2001 or similar) will work well if it is inside the trunk - adheres well too. Check with PaintBoy - Stan - he can give u good advice too. GO In a message dated 6/17/2014 12:08:22 P.M. US Mountain Standard Time, scoobscobie@gmail.com writes: good news that the new board fits ... means the ballast isn't rusting! for the repairs to the trunk and the bottom of the centerboard trunk: gel coat is doing two things - * looks nice * protects the fiberglass & resin from rubbing and UV the BIG thing is protecting from UV. epoxy, or the resin used to make the boat, and fiberglass are not UV stable. unprotected surfaces that 'see the sun' will break down. so you _must_ cover the epoxy fixes that are 'external and see sun' with something. deep inside the trunk will not see sun (the lower part may). if you are not worried about rubbing from the board over your 'upper trunk patch' i wouldn't cover. the exterior stuff at the bottom of the trunk and keel can be covered with - * gel coat (in the amounts you need can be difficult to find for a 'home fixer') * an exterior boat paint (from Interlux for example) * exterior grade oil based house paint (yes, this is what many home boat builders use) be sure to correctly prep the patch so the product you choose to cover it will 'stick'. this involves cleaning off the epoxy blush, removing any wax (yes, even an old boat may have some mold release wax on the surface) and sanding to assure a strong mechanical bond. personal preference on how close the color match matches and how pretty a surface. -- :: Dave Scobie :: former M15 owner - www.freewebs.com/m15-named-scred :: M17 #375 SWEET PEA - www.m17-375.webs.com On Tue, Jun 17, 2014 at 10:43 AM, Tyler Backman <casioqv@usermail.com> wrote:
Good idea on the test fit, the new board fits with plenty of clearance. In some spots the old centerboard is nearly twice the width of the new one, and it's seams are burst almost all the way around.
The damage to the inside of the trunk looks much worse than I thought on closer inspection. I will need to patch a fairly large panel reaching up into the narrow slot. I think I can do it with the right tools, especially a long dremel extension cable. I'll just cut the bad fiberglass out, bevel the edges with the dremel, and then lay new cloth up there with a long putty knife. Then I can sand it back flush to the original clearances.
Is it necessary to paint the epoxy repairs after I'm done even if the boat will be exclusively trailered? If so, any suggestions on the type of paint to use? I loaned my Don Casey book to my dad!
Tyler '81 M15 #157 "Defiant"
On Jun 16, 2014, at 3:50 PM, Dave Scobie wrote:
i recommend you confirm the fit of the new centerboard before filling the crack and the gouge. if the keel ballast is swelling best to know before you move forward on the repairs.