The Suppressor is ideal where both sound and radiant heat control is desired; perfect for firewalls, floorboards and doors. These high-quality mats offer the best in sound-dampening and heat control. The high-density polyethylene film with an aluminum foil composite is abrasion and tear resistant. Both mats are 7mm thick with a high-temperature adhesive backing. Installation is simple: cut to fit, peel away backing, press in place and remove air bubbles with the Mat Roller. Thermo-Tec also offer the best tool for installation of these acoustical mats - the 2" Mat Roller.