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.