I have a Sea Ray 185 with a fiberglass floor, I took out a few panels to work on the engine. Some of the panels have brackets that are screwed into the floor. Doesn’t appear the factory used sealant on the screws. Would it be wise to put some sealant on the screws upon reassembly? I have seen numerous recommendations - 3M 4000, 4200, Loctite Marine Sealant, Starbrite Marine Silicone. Any recommendations?