Cork sheets are perfect for floor and underlayment, coasters, crafting, gaskets, and other custom designs. As a lower cost alternative to felts and foams, cork is a perfect natural sound and moister barrier used in construction and design. We offer both a standard underlayquality cork as well as a higher grade quality for gaskets and more technical uses. Material: Natural Cork with Urethane Binder.Tech Specs: Recovery 75/Tensile 300/ Compression 30-50.