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Vacuum metallization consists in evaporating aluminum(purity 99.5%) to give a metallic effect to base material (films, plastic and textile).

In contact with crucibles heated to very high temperatures (1500 ° C), aluminum goes from the solid state to the gaseous state. Then it condenses on the film, which runs on two cooled drums (so that the heat does not make it melt).

Deposit: aluminum thickness, also called "the load", can vary from 5 to 80 nanometers depending on the applications.
Base material: Films from 6 to 125 microns – Fabrics

Why metallize by vacuuming?

Metallisation is done under vacuum, because the temperature can be reduced to 1500 ° C, instead of 3000 ° C in normal atmospheric pressure. It is therefore an important energy savings. On the other hand this prevents oxidation of the aluminum and thus gives a more glossy aspect to the product.

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