Re: deep Scratches /chips- Marine-Tex
It its a fiberglass hull, definately use the Marine-Tex. The stuff works great. Here's what i did to apply it:
Mix up epoxy - use correct anounts of expoxy and hardener
Apply to hole/crack with puddy knife and spread evenly
Let it harden for 5 minutes and use some water on your fingers to rub it smooth (like caulk)
Let it cure for 24 hrs and then use light sand paper to finish it off.
It hardens like a rock and is completly sandable and drillable and paintable.