Outstanding Economic Qualities
Aluminum foil has four outstanding economic qualities that account for its widespread use over an impression range of applications as barrier material, electrical conductor, heat and light reflector, graphic arts medium, and others. These qualities are:
As-produced, the aluminum surface has its natural hard, transparent layer of oxide which substantially precludes further oxidation - indefinitely in many applications.
Pound-for-pound, aluminum covers almost three times more area than tin, and a little more than four times that of lead.
Most plentiful metal in the crust of the earth, assuring a long lasting supply for man's needs
Unique combination of properties
Unique combination of properties : dead fold, high electrical and thermal conductivity per unit of weight, high corrosion resistance, nontoxic, nonsorptive, light weight, highly light reflective, and an ideal moisture barrier.