DEI Under Hood Thermal Acoustic Lining 32in x 54in - 12 sq ft - Retail PackagingDEI's Under Hood Thermal Acoustic Lining was designed primarily for automotive engine compartments as a way to greatly reduce heat and noise with a simple and easy peel and stick application. Extreme engine heat and noise often is a problem with today's modified vehicles packed with high performance components. Made of 3 4" thick, high quality, marine grade acoustical foam with a fiberglass reinforced reflective aluminum skin while the 5 mil acrylic