Alumon Red A3LW
(Technical Data Sheet)
Alumon Red A3LW is azo dye, used to give a fire red shade.
Chemical Properties:
Physical Form : Dry Powder
Appearance : Dark Red Powder
Chemical Class : Azo dye.
Light Fatness : Good
Heat Fastness : Good
Anodizing recommendation:
Applicable conditions are as:
Coating Thickness : 10-25 microns
Concentration : 4- 5 g/l
Temperatures : 55 – 60 C
pH : 5.5 +- 0.5
Buffer : the bath must be buffered with
Sodium acetate tri hydrate & acetic acid for pH 5.5
Time : 10-15 Minute.
Water Quality : preferably de –ionized; dyeing is also possible in tap water, but
this can reduce the service life of dye bath
SEALING:
The dyed oxide film must be properly sealed properly using a hot sealing salt ANO SEAL CA-350 for best result.
Other Recommendation:
1) Ammonium compounds shall not be used for controlling of the pH or to buffer dye
bath solution.
2) The presence of ammonium compounds in the sealing solution may cause
leaching and loss of color.
3) Use sodium acetate for dye buffer.
4) Adequate care to be taken for proper rinsing to control drag-in for optimum tank life.
5) Dye may be dissolved separately outside the dye bath. Use demineralized water for
better dye bath stability.
6) The life of dye bath is reduced by water containing ammonium.
Calsr ;s�~�(�-font-family: ;Times New Romanmso-hansi-font-family:Calibri;mso-bidi-font-family:;Times New Roman;'>Concentration : 3 – 4 g/l
Temperatures : 55 – 60 C
pH : 5.5 +- 0.5
Buffer : the bath must be buffered with 8 g/l sodium acetate tri hydrate 0.4 ml/l acetic acid
for pH 5.5
Time : 10-15 Minute.
Water Quality : preferably de –ionized; dyeing is also possible in tap water, but
this can reduce the service life of dye bath
SEALING:
The dyed oxide film must be properly sealed properly using a hot sealing salt ANO SEAL CA-350 for best result.
Other Recommendation:
1) Ammonium compounds shall not be used for controlling of the pH or to buffer dye
bath solution.
2) The presence of ammonium compounds in the sealing solution may cause
leaching and loss of color.
3) Use sodium acetate for dye buffer.
4) Adequate care to be taken for proper rinsing to control drag-in for optimum tank life.
5) Dye may be dissolved separately outside the dye bath. Use demineralized water for
better dye bath stability.
6) The life of dye bath is reduced by water containing ammonium.