Absolutely sand a large area with rough sandpaper . Take off all the paint and filler , down to the glass fibres . Glass would be better for seeing where the plug holes are . Go about 5 cm past the damage with the too much glass . I would first glue everything back down , then when dry , do the sanding and way too much glassing . I would also try and lift the dodgy parts to get the thickened resin under. Keep in mind your resin may get very hot if filling a large void under the squashed part , so it may be better squashing it down a bit and filling after the glassing . I wouldn't bog more than 3 mm or so . Make yourself a little squeegee out of bendy plastic , like ice cream lid plastic . That way you can work the resin into the glass using minimal resin .

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Mark _australia said..

Big reservoir is key.

yep, mine has one of those house hold gas bottles, takes a while to pull down but really stabilises the system.

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drnebe said..
I like the "just glue it all back down then 'too much' glass over top." idea if possible.
That seems straightforward for the lifted parts. What about the small crater in front of the plug? Do I pull that up somehow or just glass and try to finish from the top and leave depression?
when glassing on top does surface need to be treated , e.g sanded down or something?
As far as the glass vs carbon, it is true that I have some left over carbon but not glass. However I will need to order the qcel anyway so can order glass if that is better for this.

glass is easier, you can see what you're doing, and the extra stiffness of carbon isn't needed.

You can't just "pull the crater up", I'd make a sandwich out of it, a layer of glass over it for a start, then bog it up level, then glass over with the rest of it.

Thanks to all the advise I finished it. Made some mistakes, but a good learning experience. I haven't gotten it on the water yet to test. Just hope it will last a bit. Time will tell.

Nice job, more than I have ever done, let us know how it holds up, and give it a good week or more to cure before hitting the water.