Dylite is a trade name for a class of polyurethane foam products made by Dow Chemical Company. These foams are used in a variety of applications, including insulation, packaging, and cushioning. Dylite foam is produced by combining two liquids - a polyol (a type of alcohol) and isocyanate (a type of organic compound). The mixture expands and forms bubbles when it comes into contact with air, creating the familiar spongy texture of foam.