4032 Series Aluminum Foil:
North American aluminum foil; Often informally called tin foil) is aluminum prepared in a thin metal foil less than 0.2 mm (7.9 mm) thick; In the United States, aluminum foil is usually measured in thousandths of an inch or mille. Standard household aluminum foil is usually 0.016 mm (0.63 mil) thick, while heavy household aluminum foil is usually 0.024 mm (0.94 mil) thick. Foil is flexible and can be easily bent or wound around an object. Thin foils are fragile and sometimes laminated with other materials such as plastic or paper to make them stronger and more useful.