Sanodure® Black CRO

Aluminum Dye

Sanodure® Black CRO is a homogeneous water soluble black dye with rapid adsorption dyeing of anodized aluminum.
Sanodure® Black CRO is of primary interest for finishing processes in which rapid dye absorption is desired and the fastness properties are of secondary importance.
Only recommended for interior use.

Sanodure® Black CRO

Customer Support

How can we help you?


  • Rapid dye absorption
  • Moderate fade resistant properties
  • Suitable for indoor applications

Technical data

Product Data

Delivery Form Powder
Solubility in water (20°C/69°F) 40 [g/l]
Recommended dye bath pH  6.5-7.5
Recommended dye bath buffer  no buffer
Light fastness (12µm) 3-4
(20µm) 7-8
Single dye
Dye blend


  • Indoor
  • dyeing of continuously produced oxide coatings (coil anodizing or similar thin coatings)
  • dyeing of cast parts of high silicon content
  • dyeing of oxide coatings with low adsorption power