Alumon Gold 4N

Alumon Gold 4N

Alumon Gold 4N is a ferrioxalate-based preparation in powder form. This product is for attaining gold shades of high fastness on artificially produced aluminium oxide film.

Chemical Properties
Commercial form greenish yellow powder
Storage stability practically unlimited. Protect product from effects of light and moisture. Any lumps that may form have no influence on the product's dyeing properties.
Solubility at 25°C
at 65°C 		430 g/l water
750 g/l water
Bulk density 550 g/l
pH of product 4.0 ± 0.5 at 30 g/l
RECOMMENDED APPLICATION DETAILS
Applicable condition are as:
Anodic coating thickness 10-25 microns
Concentration 5 – 15 g/l (Pale)
15 – 30 g/l (Medium to Deep)
pH Range 4.5 - 6.0
Buffering Sodium Acetate or Acetic Acid
Dye bath temperature 40° - 55° C
Immersion time 2 – 20 minutes (depending upon Shade)

SEALING:

The dyed oxide film must be properly sealed properly using a hot sealing salt ANO SEAL CA-350 for best result.

Other Recommendation:

  • Ammonium compounds shall not be used for controlling of the pH or to buffer dye bath solution.
  • The presence of ammonium compounds in the sealing solution may cause leaching and loss of color.
  • Use sodium acetate for dye buffer.
  • Adequate care to be taken for proper rinsing to control drag-in for optimum tank life.
  • Dye may be dissolved separately outside the dye bath. Use demineralized water for better dye bath stability.
  • The life of dye bath is reduced by water containing ammonium.