Re: Restoring Gel-coat
If there is a lot of damage from son, etc... and depending on what color og gelcoat, how thick, etc... might be well served to wetsand first. On my current project, the gelcoat was heavily oxidized and like chalk on the outside when i started. The boat is black with silver metalflake and a thick layer of clear gelcoat. I wound up going all the way to 320, then worked back to 1200 / 1500 grit wetsanding, followed by aquabuff (high speed compound made for cutting gelcoat, water soluble, worked GREAT, recommended on one of the forums for exactly this and washes back off). Finish off with molishing compound, machine glaze of filches... top off with some good marine wax... the difference was absolutely amazing...
Hope this is helpful!
Tim R.