Metal foils that are laminated to high-temperature insulation can increase the effectiveness of die cut heat shielding. Aluminum foils reflect radiant energy and reduce the amount of heat that high-temperature insulation must absorb. Metal foils also support micro-perforating and embossing (kalotte), value-added processes that reduce noise and support manufacturability.
Laminating metal foils to high-temperature insulation can also support thinner heat shield designs. For example, a foil-faced structure that’s just 1/8” thick can reduce temperatures from 1800° F to 200° F. These die cut products can fit into tight spaces, support vehicle lightweighting efforts, and meet precise dimensions. Foil-faced heat shields offer many advantages, but lamination can be challenging.