This article is about aluminium foil. In the United States, foils are commonly gauged in thousandths of an inch or mils. Standard aluminium production process pdf foil is typically 0. 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.