Broken Window Seal - Exclusive |link|

When the desiccant inside the spacer bar becomes saturated with moisture, it leaches out. You will see a white, chalky, or rainbow-colored stain coating the interior glass surfaces. This cannot be cleaned without disassembling the unit.

Identifying a broken seal requires distinguishing between temporary surface condensation and permanent inter-pane failure. broken window seal exclusive

A "broken seal" occurs when the airtight barrier around the edges of these panes fails. Once the seal splits, the insulating gas leaks out, and moisture-laden air rushes in, leading to that permanent "foggy" look. 5 Signs You Have a Seal Failure When the desiccant inside the spacer bar becomes