Originally Posted by jezza2011
just wondering if I can rub it down and paint on some gel coat. will the gell coat go off in air?
No, it won't,, gel coat won't go off in the presence of air.
You would need to use flowcoat but the boat will need to be upside down. Flowcoat is basically gelcoat with a wax additive that rises to the top after application sealing off the resin below from the air.
Alternatively you could sand it back with 800 wet and dry paper followed by 1000grit then machine polish it afterwards.
Beware, a proper job is not for the faint hearted.