Video showing how OPACI-COAT-500 Silicone Spandrel performs in a four-sided structurally glazed (silicone sealant on all sides) test. Notice how the glass pillows out. No cutbacks of the coating, it's sealant to coating, coating to glass. In fact, per ASTM and other safety tests, there wasn't a failure. Eventually, the tech used a shotgun to break the glass. I'd say it passed with flying colors!
OPACI-COAT-500 Silicone Spandrel Structural Glazing Tests