Sanodal Gold 4N (Golden)
Golden 4N is an inorganic water-soluble dye used for dyeing aluminum parts with a high fastness gold color through anodizing. Golden 4N dyed aluminum parts have various applications in many industries. For example, they are used in audiovisual equipment, jewelry, signage and nameplates, surface treatment of household items, and can also be used in building materials.
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Product Details
Gold 4N is an inorganic water-soluble dye used for dyeing aluminum parts with high fastness to a gold color through anodizing.
1. Dye technical parameters
Appearance:Green-yellow powder
Shelf life:Can be stored permanently, protect the product from light and moisture during storage
Solubility:25°C, approximately 430g/l; 65°C, approximately 750g/l
Density:550g/l
Applicable pH:At 30 g/l, 4.0±0.5
Safety data:See the safety data sheet (MSDS)
2. Application range and color range
Gold 4N aqueous solution can dye aluminum alloy oxide films to a gold color with high light fastness, weather resistance, corrosion resistance, and heat resistance. It produces inorganic hydrated iron oxide color through hydration within the oxide film. The color range mainly depends on the working method, ranging from new silver to light brass to varying degrees of gold, even to brown-orange. For oxide films that are difficult to fade by conventional methods after adsorbing dyes, a solution of Gold 4N can be used for fading. Due to its excellent performance, Gold 4N dyed aluminum parts have applications in many industries, such as in audiovisual equipment, jewelry, signs and nameplates, surface treatment of household items, and can also be used in building materials.
3. Application
Application technology:Immersion stirring in aqueous solution, or spraying
Water quality:Deionized water is recommended
Usage amount:
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Light color
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Medium to dark color
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10 - 20 g/l
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20 - 30 g/l
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Dyeing temperature:40-55°C, light colors can also be 30-40°C
Bath pH value:4.0 to 5.0
Dyeing time:0.5-20min, depending on the required color, but preferably 2-10min
Sealing:It is recommended to use Anodal® ASL (one-step or two-step)
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