Hi All,I don't have much experience yet with fiberglass and gelcoat repairs, so advice would be very helpful. I'm just wondering if I can get a few opinions regarding methods for getting resin (in some form, e.g. body filler, putty, etc.) into a deep, narrow cavity. Just jamming it in with tools can get messy. Is it possible to put some thickened, catalyzed resin into a syringe and inject it cleanly into the hole? Or is resin that is thick enough not to run too thick for a syringe?The particular situation involves the joint between the deck and hull. A length has separated due to an impact. After reinforcing and resealing the joint, there remains a small gap (about .2") on the underside of the rail that faces downward. It needs to be filled and gelcoated. I'm hoping that a syringe will get filler in there and leave some depth for gelcoat putty. Thanks