Norseal® PVC firm density foams are provided with a pressure-sensitive adhesive on one side for ease in placement. The paper release liner ensures the foam is protected and eliminates any stretch during the application. the firm density foam provides damping and accommodates higher compression forces. the closed-cell foam ensures adequate air, dust and water seal when compressed 30%. These materials are provided in either slit rolls for ease in application or die cut parts through our authorized converters.