Reduces Wind Noise and Improves Sightline Supports Windshield While Urethane Cures Available with Single and Double Sided Adhesive These CRL Foam Windshield Support Tapes have been used in the past as a support device when using medium viscosity urethanes, but is now a required item when replacing numerous windshields that need additional sound proofing in order to keep wind noise to a minimum. Not using this foam sound tape can lead to customer complaints of elevated wind noise. CRL Foam Windshield Support Tapes retain most of its height to create more glass-to-urethane contact area. Minimum Order: 1 Case Case consists of ten, 50 foot (15.2 meter) rolls. 500 feet (152.4 m) in total. CRL Foam Sound Tape with adhesive on one side, 1/4 inch (6 millimeter) FC250, 5/16 inch (8 millimeter) FC312, and 3/8 inch (10 millimeter) FC375 allows you to reposition the windshield after the glass has been set in place. CRL Foam Windshield Support Tapes with adhesive on two sides 1/4 inch (6 millimeter FD250R, 5/16 inch (8 millimeter) FD312R, and 3/8 inch (10 millimeter) FD375R will increase initial adhesion strength. Its aggressive adhesive bonds to pinchweld and glass, and its high density foam bends easily, forming a smooth finish on the inside of the car.