Boom Mat Sound Deadener 12"x23" (20 Pack)
Audi B5 A4 Quattro V6 12v 

Constructed of a rubber-based (viscoelastic) polymer layer with an aluminum foil laminate outer facing, Boom Mat’s strong adhesive backing is unaffected by extreme hot and cold temperatures, is corrosion resistant and can be applied to metals, painted areas, plastic, fiberglass, automotive coatings and difficult to bond surfaces to name a few. With an ultra strong adhesive backing it can be applied in horizontal, vertical and inverted applications as well as on complex shapes.

In addition to being a superior sound absorber and a solution in controlling vibration over a wide temperature range, Boom Mat is also an excellent thermal insulator. Capable of damping annoying low frequency noise, Boom Mat also serves as a barrier to unwanted mid and high frequencies.