MMO Anodes

PLATINUM ANODES

We provide platinized titanium and platinized niobium anodes wherein the catalyst properties of platinum are combined with the mechanical robustness and corrosion resistance of titanium  and niobium substrates.
These formulations are typically used in hard chrome plating and in applications taking advantage of the low anodic potential associated with platinum.
The substrate is entirely plated with platinum metal showing the high quality characteristics typical of De Nora DSA® anodes in terms of product durability.

De Nora DSA® platinum anodes are:
•    Resistant to corrosion in aggressive electrolyte environments
•    Uniform in platinum coating thickness
•    Customizable according to customer’s specific design and geometry

AUXILIARY ANODES

De Nora DSA® anodes are used as auxiliary anode in hexavalent chromium plating, allowing to achieve precise and accurate finishing in specialized geometries which require an enhanced localized deposition, especially in the automotive and in the decorative fixture market.

MMO-coated titanium anodes are lightweight and geometrically flexible, thereby assuring ease of installation, quick replacement and capability for multiple refurbishing in a cost-effective way.

De Nora DSA® auxiliary anodes are designed to provide:

  • Uniform current apportionment in plating of recessed areas
  • Proper of copper/nickel/chromium  plating  thickness, preventing waste from over coating (extra cost) and plating burns (poor appearance/defects)
  • Cost-effective process

De Nora GreenChrome® plating anodes

In recent years, health and environmental regulations as concerns  the use of hexavalent chromium plating baths have become more stringent. As a result, platters are converting to trivalent chromium baths. De Nora GreenChrome® anodes are being recognized as the best suited solution for almost all major chemistry supplier’s trivalent plating baths. De Nora GreenChrome® anodes are characterized by a high durability and are specifically designed to preserve the integrity of the trivalent chromium bath, preventing its oxidation to hexavalent chromium. 

Balancing anodes

The use of anodes prone to dissolution phenomena in electrodeposition of metals such as copper, tin, nickel and zinc tend to generate an excess of metal ion species in the plating solution. As the concentration of metal ions increase, plating quality can diminish forcing platters either to dummy plate or decant their plating baths in order to maintain an optimal metal ion concentration. In either case, additional costs are incurred due to lost production or supplementary waste treatment. An extremely cost -effective method for controlling metal ion growth is to replace a portion of the soluble anodes with De Nora DSA® anodes. 

Contact our expert

Via Bistolfi, 35
20134 Milan Italy
Tel. +39 02 21291
marketing@denora.com