What is the Copper-ColorAL process?
The Copper-ColorAL process is a two-step electrolytic dyeing process for achieving typical copper hues on anodised aluminium surfaces. The process is similar to the conventional colouring process used for tin and is carried out using the two-component product Alficolor 672 and Alficolor 692.
Advantages:
Typical copper shades from pink to dark wine red on anodised aluminium
Electrolytically dyed oxide layers, thus high colour stability
Stabilised two-component system for uniform colouring and long bath life
Easily reproducible shades with simple maintenance effort
Colour variants possible by modifying c, t, T and acidity
Can be easily integrated into existing facilities
Plant equipment for colouring tin can be used
Individual components can be analysed
Simple mode of operation
Typical dyeing parameters:
15 g/l
25 g/l
20 g/l
Dyeing time
Temperature
Current
Alficolor 672
Alficolor 692
Sulphuric acid
0.5 – 15 minutes, depending on colour intensity
25 – 30 °C
AC, 50 Hz, 14-20 V, 0.2-1.0 A/dm²
follow us: