Areas around the glass and small crack,GE silicone 11 outdoor is great. For a larger frame crack , you would want to add a piece of vinyl, or white plastic and use the
ge silicone to adhere it too the spot. The best way is to have it resealed if it was made
by a reliable window maker. Most are able to get the pane out for repair. Anderson
and martin. These company's are around and have support.