Hey guys, so I've had great success with 3m products and sikaflex above and below the waterline but can' find anything that will seal up the acces ports on an aluminum pod. Nothing seems to bond to plastic. I've scuffed up the plastic and wiped with grease wax and silicon remover. Sikaflex failed, 5200, 4200, 4000. All failed. Only thing I haven' tried is bedding with butyl which I will prob try next. I think there is just too much flexing in the decks on aluminum pods when people walk on them and under rough conditions and also the release agents used when moulding plastics. So anyone have any succes sealing these damn hatches up I'd love to know what you used.