SurTec 313

Sustainability and Energy Saving in Anodising

During the anodising process the H₂SO₄ re-attacks the anodic coating. The re-attack is directly proportional to temperature and time.

SurTec 313 contains organic acids able to protect the anodic coating in two ways:

• Heat transfer from metal to solution
• Chemical attack inhibitor

Therefore, the electrolyte temperature can be maintained higher than normal without damaging the anodic coating.

SurTec 313 also contains complexing agents that allow to work with a higher content of dissolved aluminium.

Energy savings:

• Higher Anodising temperature
• Higher Sulphuric Acid concentration
• Working voltage is 2 or 3 volts lower than conventional  

Reduced managing costs and improved quality:

• Lower dissolution of aluminium
• Longer bath life. It's not necessary to periodically dump the anodising solution.
• Improved uniformity of the anodic coating