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The DEI Reflect-A-Cool is a thin, flexible sheet of aluminized fiberglass cloth with a self-adhesive backing. It reflects radiant heat away from firewalls, engine compartments, wires, hoses and pipes, and can be trimmed to fit almost any shape. It handles continuous direct heat of 400°F and radiant heat up to 2000°F, and its 0.0065 in. thickness means it needs almost no clearance. It suits DIYers and racers shielding interiors and components; unlike thicker molded heat shields, it is a stick-on foil barrier that must not touch exhaust parts directly.
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Owners use it to cut cabin and component heat and generally find the adhesive holds well when the surface is clean. Some report the foil is easy to trim but can crease or tear, and a few say adhesion suffers on rough or greasy panels.
Reflect-A-Cool is a heat barrier sheet that helps keep radiant heat out of interiors and components. It is made of fiberglass cloth backed with a layer of aluminized reflective foil. It handles direct continuous temperatures of 400°F and protects against radiant heat up to 2000°F.
The sheet is light and flexible, and it can be trimmed to fit almost any shape. It is used on firewalls, in marine engine compartments, in RVs, and in the tub of a race car where mechanical fasteners can't be used. It also protects wires, cables, hoses, pipes and tubing from radiant heat sources. It is moisture and solvent resistant and needs virtually no clearance.
To install, measure and trim the sheet. Face the reflective side toward the source of radiant heat, then remove the release liner and press the self-adhesive backing in place. Do not apply it directly to exhaust components.
