Helix Aluminized Heat Barrier The Helix Aluminized Heat Barrier deflects heat and sound effectively, making it ideal for areas like plastic side panels, fairings, hoods, cab areas and outside engine spaces. Features: Deflects heat and sound from plastic side panels, fairings, hoods, cab areas and outside engine areas Fiberglass cloth with 1 mil thick aluminum sheeting on one side Optional factory applied strong adhesive on one side