[Trayder]

The rule I have learned, from working with the guys at Hinckley/Little Harbor is to replace what is damaged or missing with what was originally there. First you will have to grind back the areas to see how far the damage goes.

If the damage stops before the glass then just refill with gelcoat mixed with cabosil to thicken it up and then wet sand and if necesary top it off with a layer of gel or what ever you plan on finishing with.

If you grind down and the laminate is damaged as well check the area and see if there is any support missing that may cause the area to flex. If there is something address that and then grind back the damage and rebuild using layers of glass and then finsh.

From the photos it looks like most of the damage is from voids. So a mix of cabosil and gel-coat will be fine.

Use a counter sink on your area of the holes from the outrigger part to bore out the gel coat a bit and then fix the hole, ideally you will want to fill the hole with the same material as the core but seeing as though it is so small, place some tape on the underised of the deck to make sure the mixture of chopped glass/cabosil and resin does not drop through. Let that cure with an indentation on the deck side when cured rough the indentation up a tad and fill the spot with the same mix of cabosil and gelcoat to bring it level with your deck.


key tool here would be a dremel tool and a countersink but
other supplies
cabosil
resisn/ Gel coat I suggest Polyester for this repair
Acetone to clean up all the areas before you start you fix

good luck