Packaging Foils We offer all kinds of the packaging aluminum foils. Aluminum foil is aluminum prepared in thin sheets. As a result of this, the foil is extremely pliable, and can be bent or wrapped around objects with ease. Aluminum foil is sometimes known as al-foil or alu-foil. It is also often called tinfoil, although it is not made from tin, or as silver paper although it is not made from silver.