In this video we show how to grind fiberglass on our classic 25 ft project boat, while preparing for fiberglass repairs. Prior to this we cleaned and degreased this entire. Come join the discussion about sailing, modifications, classifieds, troubleshooting, repairs, reviews, maintenance, and more! What to use to grind/sand fiberglass? I'm about to start a few practice fiberglass projects over the winter. Have read lots of rebuild posts regarding the joys of grinding fiberglass and the measures you guys take to avoid inhaling fibres and the dreaded itch; Tyvek suits, respirators, baby powder, etc, etc. Had a thought that I have tested recently, wet-grinding. I was using a random orbital sander to remove the paint and gel-coat down to the fiberglass. Say, what is the best tool for major sculpting such as the scarf bevel on old thru hull hole patching? I'm using a flexible mesh grinding / cutting wheel that works great for surface grinding but it's slow and turning out to be difficult to make a smooth recess with.
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