Chemical Conversion

Chemical conversion / Chromate conversion / Dichromate seal

Chromic Acid Anodizing

Generally, a chemical conversion coating is a coating produced by a chemical or electrochemical treatmentic on a metallic surface. The result of those processes is the addition of a superficial layer containing a compound of the metal. This process can be used either as a stand alone finish or as a base for subsequent paint.


Can be used as a primer for paint and has good adhesive properties for lamination. It also provides protection against corrosion and is an alternative to anodizing.

Our Techniques

Surface finish


Ultraspec offers different aluminum brushing services


The anodized layer is porous and can be colored.