Delta Kits’ professional-grade windshield repair resins provide unparalleled performance. Every proprietary formulation undergoes exhaustive laboratory and field testing to ensure our auto glass resins exceed industry standards. Independent auto glass repair and replacement professionals worldwide prefer Delta Kits resins over any other brand. Delta Kits sells more resin than any other windshield repair company in the United States. Not sure which resin is right for you? Check out the Delta Kits Resin Comparison Chart.