wood boat bottom pain

In the process of bringing back my families 69 17 ft Carver runabout.Boat is in great shape.Lapped plywood.As a kid I remember sanding and repainting it but what about bottopm paint.I,m a retired carpenter and dare I say sailor for 45 yrs,so I know about bottom painting,but whats on this is not bottom paint.Some type of bronze color paint.Boat has always been trailererd and stored inside.Any help with paint and can you use 3M 5200 on bottom .Thanks Will be my winter project