I have a very large 10' long plexiglas window on Palarran that due to flexing has come loose at the bottom edge. There is about a 3/4" gap for about 4' between the plexi and the fiberglass
. The top, leading, and tailing edges are still affixed and seem to be in place. The window had kind of bowed out at the bottom creating the gap.
I've been kicking around ideas to repair this. One of them had been to remove the window completely and re-bed it. I guess they use a product similar to the stuff on auto windows to affix them back now. But, that seems risky due to the potential of it breaking while trying to remove it.
Another idea had been to drill a 1/2" round hole in the plexi, take a thick grommet and insert it, then go through the center of this and through-bolt it, using large fender
washers on both sides, to the fiberglas. Over time I would tighten the bolt and pull the plexi back into place. I like this idea from the standpoint that it will also secure the window in place better. But it also risks breaking the glass.
My final idea is to just fill the crack with some type of flexible chalk. This would be easy to do and I could dress up the inside with a trim board so there wouldn't be a gap anymore.
A final note is that the plexi is not available from the factory anymore. So if it breaks, I'll have to probably have two custom made pieces as a new one won't match the opposite side. I don't want to imagine how much that would cost. The gap is at the curve of the window, not on a straight part.
Anybody have some advice?