Damplifier Pro Mat Second Skin Damplifier Pro Butyl Rubber Sound Deadening Mat 2mm 12 X 10 Cld Tiles 5 Sq Ft 6 Tiles Made In Usa Tile Pro CONSTRAINED LAYER DAMPING: CLD tiles perfectly sized for small projects: 15 Sq Ft option includes 18 butyl CLD tiles. Sound deadening is the hidden secret behind the upholstery of any car project. To reduce road noise, use Damplifier Pro to stop the structural noise generated by vibrating metal Each tile measures 12 x 10. 10 Sq Ft Butyl Rubber CLD Tiles Sound Deadening PROUDLY MADE IN THE USA and endorsed by Chad Utt of WEST COAST CUSTOMS The foil heat shield acts a radiant barrier and thermal insulator. Second Skin's Damplifier Pro CLD tiles (12" x 10") are the same great Damplifier Pro sound deadening mats, still engineered for performance Most noise problems in a vehicle are caused by structural vibrations - coming from the road/tires, engine, and vehicle upgrades like bass stereos systems. The butyl and the annealed aluminum foil constraint layer work together to prevent the vibrations from becoming noise. Damplifier Pro uses 2 mm, 100% American-made, heat-resistant butyl rubber layer to damp this vibrational energy, dissipating it as low level heat energy.