Hi, I am new to this forum. I have a 1979 38 landfall with major leaks on the port lights. I installed new Lexan last year but I have a feeling I used the wrong sealant. I am getting ready to pull them back and reseal after I bevel the edges against the hull. Does anyone have a sealant I should use? I am thinking of using Sikiflex 291. This seems to matain the best flexability. I have had the boat just over a year and love it. I can be found sailing Puget Sound.