I've had my 2007 Catalina 309 for a year. When I purchased it there were to issues I've yet to figure out or repair. It was in great condition other wise but has some discoloration in various places around the cabin ceiling and walls. They are not in obvious water leaking areas and the boat has no obvious rain leaks. There is the usual seasonal condensation. Also the bilge covers in the floor are delaminating around the edges. They are obviously a synthetic of some kind and I wonder what adhesive product would be best for the repair. I'll post some pictures below.