Acrylic (Plexiglass) cracks easily, but is harder and more scratch resistant than polycarbonate (Lexan). Stock car racers use polycarbonate for windshields in their short track race cars. It is the more crack and impact resistant of the two plastics, but more likely to cloud if you are too aggressive washing it. It is a trade off like everything else, but I would lean toward the Lexan in that application. Both of my boats have long Plexiglass side windows, and both have one side that is cracked vertically more or less in the middle.
Steve Thomas C&C36 Merritt Island, FL C&C27 MKIII Port Stanley, ON ---- Fred Hazzard via CnC-List <cnc-list@cnc-list.com> wrote: The 2 windows I replaced about 7 years ago with Sikka Flex and their primer have developed a lot of cracks along the top edge. These cracks are leaking. I cannot recall if I used polycarbonate or cast acrylic. Of the 2 choices which would be the better for replacement? They are relatively long windows that are held in only by the Sikka Flex. This time I plan to use 3 M tape. Fred Hazzard S/V Fury C&C 44 Portland, Or _______________________________________________ Email address: CnC-List@cnc-list.com To change your list preferences, including unsubscribing -- go to the bottom of page at: http://cnc-list.com/mailman/listinfo/cnc-list_cnc-list.com
