Re: 1958 14' Fleetform
Oh I'm sorry I meant the hairline cracks all over, yes that is obviously through the fiberglass
And I mean when I use the sander it doesnt do anything to the gel coat and I'm not sure how much I'm sanding.
Then either your choice of sander, or the grit of sandpaper isn't aggressive enough. Old degraded gel coat that has cracked as extensively as your's appears to be, shouldn't be particularly difficult to remove mechanically (via sander or grinder).
You shouldn't be sanding gelcoat w/ out the proper protective equipment... Dust masks aren't sufficient. You need a respirator, and a tyvek suit.
But that may be a bit premature. You do not want to start removing gelcoat until you have a good idea of how you want to start putting it back together. That plan is based on how you plan to use the boat, how much time & money you have to commit to it's rehab.
If you plan to make it water tight, put a motor on it & use it to fish in relatively calm safe waters and if it's not pretty or perfect, that 's OK, it floats safely.. That defines a different plan of demo & put back.
A show quality restoration is unlikely, but it clearly would require an entirely different plan, that would require significantly more time & money.
Yours is likely somewhere in between. And getting access to materials & resin may force a change in plan. If you have to pay $300 in shipping for $5-600 in supplies, that may force you to revise the amount of time, effort & money spent making the interior more then just functional...
In NJ, US Composites or Composites One may be your best alternative for resin & fiberglass purchases online. If you can find a local supplier, you may even be able to buy the supplies cheaper & have that $300 in shipping charges available for the interior....
And it is unlikely that no matter how you plan to finish this project, that you will be able to re-coop your costs when you sell this boat.....
So, what exactly do you want to accomplish w/ this rehab?