Whether you need pure foil or general foils:
We package aluminium foil specially for your application requirements
Aluminium with a purity of 99% or higher is called pure aluminium. Primary aluminium, i.e. the metal produced in an electrolytic furnace, contains a series of "impurities". In general, however, only the elements iron and silicon are present in quantities exceeding 0.01%.
With regards to aluminium foils > 0.030 mm (30 µm), the most common aluminium alloy is EN-AW1050 (= pure aluminium foil with an aluminium content of at least 99.5 %). Aluminium > 0.300 mm is generally called aluminium strip or aluminium sheet.
Aluminium foils are usually produced using pure aluminium (Al content 99 - 99.9%). So-called pre-rolled strip with approx. 0.6 - 1.5 mm thickness is cold-rolled in several rolling steps (passes) to the required thickness. Two sheets are rolled at the same time (double-rolling) to produce very thin aluminium foils. This leads to two different surfaces (shiny and matt). The reason for this is that the outside surfaces come into contact with the polished rolling mill and therefore become relatively smooth (shiny), while the inside surfaces have a slightly more roughened surface due to free forming and thus appear matt. The aluminium hardens during rolling due to the strong forming and this means that the aluminium becomes harder or stiffer. Subsequent soft annealing makes it soft and flexible again.
Alujet-Universal converts pure aluminium foils for you as thin foils, e.g. 10, 15, 20 µm, or as stronger aluminium foils with thicknesses ranging from 30 to 300 µm, in a variety of formats, whether hard or soft, smooth or embossed. Extra-large widths of up to 1,250 are also available here.