Anodized aluminium defects

Defects in anodizing of aluminum profiles are divided into four main types:
– Type 1 – Streaking associated with extrusion technology and ingot quality
– Type 2 – Streaking associated with mechanical preparation of the surface of aluminum profiles before anodizing, such as grinding or polishing.
– Type 3 – Corrosion defects
– Type 4 – Inhomogeneity in the appearance of anodized aluminum profiles