Restores vehicles to OEM specifications to provide original quiet ride. Self-adhering, sound deadening panels designed to reduce noise levels in cars and trucks. Cuts easily with a razor blade, knife or scissors. Can be heated up to 300 degrees F to conform to any irregular surface. Permanent bonding once affixed. Acts as a waterproof barrier. #116 for doors, trunks and fenders, and #117 is extra strength for floorboards.