titanium oxidation • surface oxidation/colouring of titanium and titanium alloys. It has corrosion- proofing, seizure-proofing properties and is used for architectural components.

semi-hard oxidation • in this oxidation process, higher wear-resistance is required compared to natural oxidation. The result is also lighter in colour than the usually darker hard oxidation colours.

sample hard oxidation • hard oxidation where the main target requirement is the sample colour (and not the thickness).

die-casting hard oxidation • carried out on max 2% copper alloys. "Supercoat" treatment.