Ok skippy I will explain it in simple man terms, the heaver weights of cloth require more resin to wet out, the lighter cloth less resin, what you are dealing with is resin retention, the 10 lighter layers of cloth will not retain that much resin, so only so much is squeezed out with the vacuum...
If it weighs in at 318, it really isn't that waterlogged, especially with a gallon of gas in it, just saying NADA lists the dry weight at 291 on a 1996 model. Gasoline is 6 lbs per gallon so add that you get 297 , I take it dry weight includes the battery but unfilled so add 1lb there , that...
Actually you wasted your time by not checking popoff pressure when you had the carbs apart, that would have shown up if the needles and seats were leaking, do it right , do it once be done.
Regardless of what you spray the gelcoat on, if its after the composite is cured you will only get a mechanical bond, this mechanical bond is achieved by roughly sanding the surface so the gelcoat has some tooth, I suggest 80 grit for this, if you spray gelcoat into a mold and then do a layup...
Unless you have a dump gun there is no choice except to do it in a few layers as you can only shoot so much gelcoat in 15 minutes before it kicks off in the gun.
I think what they are implying but no one really wants to say is that slotting holes is necessary in some of these crappy @$$
aftermarket hulls that are now being sold, there I said it let the beatdown commence !
Gelcoat will fill in the entire world if you spray enough of it, unless you a spraying master you will end up doing some sanding. if you don't 80 grit the whole thing you will definatly have problems with the gelcoat lifting and separating, if you don't want to remove the paint spray it heavy...
Any kind of plastic that will hold a vacuum will work, on the sides you should be good as you will probably be able to do that part wrinkle free, on the tray that will be a lot more difficult but then its under turf and it won't really matter.The most important thing is to use good quality tape...
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