Foaming Foil

Formed foil is the product of a special high-purity aluminum foil that has been electrochemically or chemically corroded to expand the surface area, and then electrochemically formed a layer of oxide film (aluminum oxide) on the surface. According to voltage, formed aluminum foil is generally divided into polarities. There are four types of low pressure, low pressure, medium high pressure and high pressure. The thickness its ranges from 25-110 microns; there are positive foil and negative foil, and there are also guide foils.