Description 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 3"0 degrees F to conform to any irregular surface. Permanent bonding once affixed. Acts as a waterproof barrier. #1"6 for doors, trunks and fenders, and #1"7"is extra strength for floorboards.