what causes bulges in the hull and fiberglass to crack when pressure is put on it? I recently bought a sunfish and am facing these problems. Are they big issues?
the cracks you hear are not good. Fiberglass is like your skin.. you put lotion on your skin to keep it from cracking and for it to be smoother.
fiberglass has petroleums inside it to keep it healthy. for example when you wax the boat it is like putting lotion or sunblock on your skin, when you put rubbing compound on your boat that is like a micro derm abrasion on your skin..
by checking the condition of the fiberglass you can tell if your boat has been cared for..