What type of caulk should I use for various Beaty Beads around the boat? Where the house joins the deck near aft quarter (75 MY) is particularly vexing. Everything I’ve tried eventually becomes a mold/dirt magnet and requires constant maintenance. I’m about to re-caulk the fly bridge area, aft deck and deck areas, ideally would get it right the first time...

Any advice greatly appreciated.
Brett