At Gravofoam LLC, We Manufacture PVC, NBR, CR Foam Sheet a Premium blend of Polyvinyl Chloride (PVC), Nitrile Butadiene Rubber (NBR), and Chloroprene Rubber (CR). Call us - +1 (859) 391-9600 https://www.gravofoam.com/product.php/pvc-nbr-cr-foam