I was just finishing my doors and installing on the plane for the final time. I bought some blue permatex threadlock yesterday and put it on all my screws that hold the polycarbonate to the frame. I noticed nearly every hole cracking. At first i thought it was from the rubber seal on the door frame pushing too hard. But i think it was the threadlock causing the polycarbonate to become brittle.
Anyone have a fix for these holes or am i buying a new window?