Re: What do you guys think?
NOOOOOO!!!
That is the equivalent of super heavy duty rubbing compound, it will scratch the pee out of your boat, way to abrasive.
It might get it clean but with all those fine scratches in it is will get twice a s dirty twice as fast and be harder to clean.
Porcelain is alot harder than gel coat, I would start with a finish rubbing compound and move up from there.