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SANODYE BULE G

Sanodye® Blue G          Sanodye® Blue G is a homogeneous, water-soluble dye which is distinguished by outstanding  fastness to light, weather and heat.      Sanodye® Blue G is suitable for
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Sanodye® Blue G 
 
 
 
 
Sanodye® Blue G is a homogeneous, water-soluble dye which is distinguished by outstanding 
fastness to light, weather and heat. 
 
 
Sanodye® Blue G is suitable for interior and exterior architectural purposes. 

1. Dye-specific data 
 
Commercial form : fine granules 
Shade : pale blue to navy 
Chemical character : anthraquinone dye, not metallized 
Bulking volume : 700 g/l 
Solubility in water : 3 g/l at 20°C 
Storage stability : virtually unlimited, store containers closed tightly 
Ecotoxicological data : see Safety Data Sheet. 
 
 
2. Application conditions 
 
 ConcentrationDyeing temperature Dyeing time 
Standard coating thickness (12 µm)0.05 - 3 g/l 25 - 60°C 10 - 20 min 
Sanodal coating thickness (25 µm) 3 g/l 30 - 40°C 45 - 60 min 
 
pH : 5.5 ± 0.5  
Buffer : The dyebaths are preferably buffered with  
        5 g/l ammonium acetate  
        + 0.5 ml/l acetic acid for pH 5.6 
Water quality : preferably deionized 
Sealing : preferably with Anodal® ASL (one or two stage). 
 
 
3. Preparation of the dyebath 
 
When preparing the dyebath care must be taken that the dye is well dissolved. 
The dye is preferably dissolved in hot water (60-80°C) in a separate container (5 parts water to 
1 part dye).This stock solution is then stirred into the dyebath. 
 
 
4. Lightfastness of the dyeings 
 
Sanodye® Blue G is distinguished by outstanding lightfastness. 
Lightfastness of Sanodal® dyeings: rating > 9 (ISO 2135). 

5. Special remarks 
 
 -  Unsealed dyeing can be stripped with nitric acid. 
 
 -  The dyebaths are sensitive to aluminium; anodized objects should therefore be rinsed 
   thoroughly before dyeing.  
 
 -  Prevention of mould formation  
    An addition of an antimicrobial product can inhibit mould formation for a long time.  
    We recommend the addition of Nipacide CI 15 (See Technical Information) 25 – 50 mg/l. 
 
 
6. Disposal of the dyebaths 
 
Spent dyebaths must be disposed of; e.g. with Anodal® WT-1 Liquid. The precipitation method 
is described in detail in the Technical Information bulletin for Anodal® WT-1 Liquid. 
 
The table below shows the additions required for precipitating Sanodye® Blue G. 
 
Anodal WT-1 Residual Dye reduction
Precipitation FeCl3 40% Etching lye Liquid dye in       in % related 
method ml/g dye ml/g dye ml/g dye the filtrate to conc. 
mg/l dyebath 
A 2.5 - 0.3 < 1 > 99.9 
B 2.5 - 0.3 < 1 > 99.9 
C - 2.5 0.5 ~ 2 ~ 99.9 
 
 

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