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Deltour Chromates In-House with Chromium-3

December 14, 2014

In recent years, chromium-6 has often been applied to aluminium for corrosion protection and to aluminium in electronics for better electronic conduction. Chromium-6, however, is extremely toxic (carcinogenic) and prohibited for that reason. That is why we have been using chromium-3 since 2013. This is an excellent alternative and we apply it with MAVOMcoat 1300.

MAVOMcoat 1300 is a strong Multi Metal pre-treatment product, based on chromium(III) salts and complex fluorides. MAVOMcoat 1300 offers excellent corrosion resistance as a finishing coat and is the perfect base for applying organic coatings.

We are able to carry out this process in-house, which saves us both costs and time. The maximum dimensions are 800 mm x 400 mm.


  • 1-component process
  • Qualicoat certified
  • Easy pH and conductivity process control
  • Free of hexavalent chromium
  • No reduction of chromium necessary for waste water purification
  • Good corrosion resistance as a finishing coat: MIL-DTL 5541F and MIL-DTL 87106B
  • Low surface resistance, ≤ 775 µΩ/cm2


  • Appropriate for steel, galvanized steel and aluminium
  • Applicable as passivation after hot-dip galvanization
  • Applicable as dipping, spraying and no-rinse treatment
  • pH Values of bath solutions: 2.5 – 4.5
  • Processing time: 1- 10 minutes
  • Appearance: slightly iridescent
  • Low weight: 100 – 300 mg/m2
  • Temperature: 20 – 40 °C