Hello,
I am looking to perform an electrolytic colouring on Aluminium series 6061. I need to reach a matte black finish using this process.
The steps that I follow in the process are the following:
Degreasing
NaOH (10 g/L) + Na₂CO₃ (15 g/L)
60 °C / 10 min.
Chemical etch
Solution...
