Thermo-Tec 14620-36 36" X 33-1/2' Heat and Sound Suppressor In addition to the polyethylene film, the foil surface provides direct protection from radiant heat Great for areas like firewalls, floorboards, or doors The Suppressor is also 70 mil in thickness, contains a high temperature adhesive backing and is easy to trim and fit The Suppressor will reduce various road noises, engine noises and improve driver comfort and concentration