I have just finished a ply laser cut Pilot Boat and am wondering how best to seal it.At the moment it has three coats of sanding sealer applied,on the outside,and been sanded down very smooth,no gaps etc.I have read all i can on the Forum about fibre glassing,two packs,epoxy,rubbing down etc,masses of work.I just want a sport boat to look decent rather than a mirror finish,and not leak.I had in mind to undercoat it,and then a Gloss top coat [Dulux] etc.also by brush as spraying isn't very practical to others here,even outside.I wish to do this and test for leaks before the radio gear goes in.I would be grateful for any comments,many thanks.Bob.