Sudden Impact is an insulating glass unit that features a Polylam resin coating on surface No. 3, 0.09-inch in thickness. The resin is applied via a large gas filling hole, and cured with IR heat within 15 minutes for making an instant impact-rated IGU passing and exceeding Miami-Dade testing protocols. Sudden Impact glazing and IGUs can pass large missile and cycling tests with all types of glass, including annealed, heat-strengthened or even fully tempered glass.