The color design of anodized aluminum surfaces is regulated in EURAS and DIN 17611 . With this surface marking you can determine how the aluminum surface should look.
This design is influenced by two parameters, structure and color. The surface nomenclature is shown below:
Pretreatment
Pretreatment
Abbreviation
No special pre-treatment
E0
Sanded
E1
Brushed
E2
Polished
E3
Sanded and brushed
E4
Honed and polished
E5
Special pickled
E6
Chemically / electrochemically polished
E7
Polished and chemically / electrochemically polished
