Thermo-Tec 14600-12 Accoustic/Heat Barrier, Adhesive Backed, 402 in. x 12 in., Universal, Each - Thermo-Tec Acoustical & Heat Control Mats are ideal for keeping excess heat and noise from your vehicles interior. In addition to the polyethylene film, these mats have a foil surface that provides direct protection from radiant heat. These mats are great for use on firewalls, floorboards, and doors. The suppressor mats feature a high temperature adhesive backing and are easy to trim for an excellent fit.