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Iridite 201

MacDermid aluminum passivatesPhospho-Chromate Conversion Coating Liquid For Aluminum. Iridite 201 is used to
produce a chromate/oxide conversion coating on the surface of aluminum, zinc and
cadmium which improves the adhesion of applied paint and powder finishes.

The conversion coatings may have a weight ranging from 0.3 to 2 g/m². The coating
colour may vary from light to dark green and the constituents of the conversion coating
are primarily trivalent chromium compounds. Iridite 201 is especially adapted for
architectural extruded and laminated aluminum. Many others applications are possible:
for example for food and drink packaging (can coating).