What is the thickness of aluminum foil in mm, it is usually between 5 micrometers and 200 micrometers. In the packaging industry, common aluminium foil thickness specifications include 6μm, 9μm, 12μm, 15μm, 18μm and 20μm. Different thicknesses of aluminum foil are suitable for different packaging purposes. For example, 6μm aluminium foil is mainly used for moisture-proof packaging, 9μm and 12μm aluminium …