1060 aluminum sheet/ foil is pretty similar to 1050 aluminum alloy with more than 0.1% of aluminum by weight. 1060 aluminum sheet contains 0.05% cooper, thus, its conductivity is 55%. Besides, 1060 aluminum sheet is relatively low strength, essentially pure aluminum alloy with many different tempers, such as O (annealed), H12, H14, H16, H18, etc.