Anjeka6871 wetting and dispersing additive reduce viscosity in resin-free pigment concentrates water resistance BYK2012

ANJEKA-6871GENERAL DESCRIPTION

Anjeka-6871 is a high-performance wetting and dispersing additive designed for aqueous coatings and printing inks. It effectively stabilizes a broad spectrum of pigments, including inorganic pigments, organic pigments, and carbon blacks. It significantly reduces grinding paste viscosity, improves storage stability, and is suitable for both resin-containing systems (emulsions, water-soluble resins) and resin-free pigment concentrates.

PRODUCT DATA

Chemical Composition: Structured polymer with pigment-affinic groups.

Typical Physical & Chemical Data: (The following data are typical values and are not to be treated as binding specifications.)

Appearance: Transparent, yellow to brown liquid.

Acid Value: 10 – 20 mg KOH/g.

Amine Value: 5 – 50 mg KOH/g.

Active Ingredient: 40%.

Solvent: Water.

STORAGE & TRANSPORT

Pre-use: Stir well before use.

Low-Temperature Handling: Separation or turbidity may occur below 10°C. If observed, warm the material to 30–40°C and stir thoroughly until uniform.

Shelf Life: 12 months (recommended maximum).

Container: Store in airtight containers.

APPLICATION GUIDELINES

Features and Benefits
Anjeka-6871 offers excellent compatibility with common aqueous resin systems, making it the preferred choice for dispersing pigments in resin-containing pastes. Its robust stabilization extends to a wide range of pigments, including transparent and opaque organics, as well as carbon blacks. It is also highly effective in resin-free aqueous pigment concentrates.

Key Advantages:

Broad Formulation Compatibility: Its dispersing efficacy remains unaffected by the presence of organic amines, rheology modifiers, wetting agents, or co-solvents in the grind.

Superior Processability: Significantly reduces grinding paste viscosity and eliminates thixotropy, enabling easier handling and processing.

Enhanced Final Properties: Provides strong deflocculation, leading to excellent color development, transparency, and color strength—ideal for high-performance printing inks and coatings.

Recommended Application Sectors

Industrial Coatings

Automotive Coatings

Special Recommendation: Printing Inks & High-Gloss Finishes

Recommended Dosage (as supplied, on pigment weight)

Inorganic Pigments: 5% – 30%

Organic Pigments: 50% – 100%

Carbon Black: 100% – 250%

Note: The dosages above are empirical starting points. Optimal dosage should be determined through application-specific testing.

Incorporation & Processing
For optimal performance, incorporate the additive into the grinding base before adding the pigments.

PACKAGING

• 25 kg in lined iron drums.

• 180 kg in tight-head plastic drums.

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