Home // Metallurgy // Conversion Coatings // Iridite Nr2 I


MacDermid aluminum passivates

Iridite NR2-I chrome-free, low-temperature, no rinse liquid acid product. It produces conversion coatings with physical properties equal to that of chromate conversion coatings. Iridite NR2-I forms a tight adhesive bond with aluminum substrates upon drying. The conversion coating produced is colorless to light blue. Iridite NR2-I needs no rinsing and is non-polluting.

  • Qualicoat approval for chromium-free pre-treatment material – registration No. A-31
  • Chrome-free formulation – highly reduced waste water and disposal costs compared to conventional chrome pre-treatment systems
  • Typical coating weight 50-150 mg/m²
  • Suitable for spray and immersion application
  • Excellent paint adhesion and corrosion resistance performance