Aluminum foils

Aluminium foil is aluminium prepared in thin metal leaves, with a thickness less than 0.2 millimetres (8 mils), thinner gauges down to 6 µm (0.2 mils) are also commonly used. In the USA, foils are commonly gauged in mils. Standard household foil is typically 0.022 millimetres (0.9 mils) thick and heavy duty household foil is typically 0.033 millimetres (1 mil).The foil is pliable, and can be readily bent or wrapped around objects. Thin foils are fragile and are sometimes laminated to other materials such as plastics or paper to make them more useful. Aluminium foil supplanted tin foil in the mid 20th century.