What is a good method for cleaning the hulls prior to doing gelcoat repair/spraying?
Of course I'm going to wash them 1st but the dirt and water stains can be stuborn.
Sandpaper....seriously - about a 180 grit. The fresh layer of gelcoat needs a surface to grip onto.
Also wipe down thoroughly with a dewaxer BEFORE sanding so you don't rub wax deep into the surface.
