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Dyes for Anodized Aluminium // Alumon Green ALW




Alumon Green ALW

                                               (Technical Data Sheet)

Alumon Green ALW is a powder dye recommended for decorative and interior application. It gives a dark Green Shade like a green leaf to the article.

Chemical Properties:

                         Physical Form           :  Dry Powder

                        

                            Appearance               :  Dark Blue Powder

 

                            Light Fastness           : Good

 

                            Heat Fastness           : Moderate

 

Anodizing recommendation :

    

Applicable condition are as:

 

Coating Thickness     : 10-25 microns

 

Concentration             : 5 – 8 g/l

 

Temperatures             : 55 – 60 C

 

pH                               : 5.5 +-   0.5

 

Buffer                          : It is necessary to buffer the dye bath

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.

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