Integral Color vs. 2-Step Anodizing

Anodize metal for a unique finish that lasts

SAF ADOPTS 2-STEP ANODIZING

SAF has adopted the 2-Step Aluminum coating process (Electrolytic Coloring), and discontinued the Integral Color (Duranodic) Anodizing process. The differences between the two Anodizing processes help to show why.

2-STEP (ELECTROLYTIC COLORING)

Chief benefit of 2-step anodizing: does not craze during fabrication as badly as Integral Color.
Another plus for architectural applications: Anodized Color is independent of coating thickness.
Lower energy cost to produce
Better aluminum availability for both batch & coil processing
In general, more Anodizers prefer the 2-step process.

INTEGRAL COLOR (DURANODIC) DISCONTINUED – NO LONGER OFFERED BY SAF

Harder anodized coat (more dense) than 2-step, more subject to crazing during fabrication
Anodized Color varies depending on coating thickness.
Generally a thicker anodized coat, unless Class I 2-step is specified.
Single step process.
Hides welds a little better.