Form-A-Shield is a thermal product that can be applied directly to hot surfaces to provide outstanding heat protection Made of flexible 10 mil dimpled aluminum with 1/4" high temperature basalt insulation Withstands direct temps to +1400°F Offers outstanding thermal protection against direct and radiant heat for electrical components, wire, hose or plastic parts, positioned in close proximity to headers, manifolds, mufflers or transmissions Extremely pliable, easy to trim, and conforms to almost any shape