BYK161 wetting and dispersing additive high performance polymer additive for carbon black BYK161

GENERAL DESCRIPTION

Anjeka-6161 serves as an effective wetting and dispersing additive designed for solvent-borne automotive coatings, industrial coatings, and pigment concentrates. It excels at stabilizing highly pigmented systems involving carbon blacks and organic pigments, making it especially well-suited for two-component polyurethane and baking systems. It also dramatically lowers the viscosity of millbases.

PRODUCT DATA

Chemical composition: Solution of a modified polyurethane copolymer featuring pigment affinity groups.Typical Physical and Chemical Data (These are typical values and not specifications):

Appearance: Light yellow liquid
Density g/cm³ (23°C): 0.90 - 1.00
Acid value (mg KOH/g): 2-10
Amine value (mg KOH/g): 1-5
Active ingredient (%): 50
Viscosity cps (25℃): 100-300
Solvent: Xylene/butyl acetate/propylene glycol methyl e ther acetate

STORAGE and TRANSPORT

At temperatures below 0°C, the product may separate or become cloudy. To restore uniformity, warm to 20°C and stir thoroughly.
Recommended storage duration: Do not exceed 12 months.

SPECIAL NOTES

The surface treatment on certain organic pigments can reduce the performance of this additive. In such situations, consider switching to untreated versions of the same pigment type.
In coil coating applications, be aware of potential interactions between this cationic additive and acid catalysts. Free acids or those encapsulated in epoxy are preferable over amine-encapsulated ones.

APPLICATION GUIDELINES

Features and Benefits:
This additive deflocculates and stabilizes pigments through steric hindrance. Anjeka-6161 imparts equal charge to pigment particles, creating electrostatic repulsion combined with steric stabilization. This effectively prevents co-flocculation, floating, and flooding in multi-pigment systems. Consequently, it enhances gloss, color strength, transparency, and opacity while substantially reducing grinding viscosity.

APPLICATION SECTORS

Industrial Coatings ●
Automotive coatings ●
Architectural coatings ○
Anti-corrosion coating systems ○

● = Special recommendation; ○ = General recommendation

RECOMMENDED LEVELS

Dosage (as supplied, based on pigment weight) – empirical values; optimize through testing:

Titanium dioxide: 5%-6%
Inorganic pigments: 10%-15%
Organic pigments: 30%-80%
Carbon black: 70%-140%

INCORPORATION AND PROCESSING INSTRUCTIONS

For optimal results, pre-mix the resin and solvent portions of the millbase. Then, add the additive gradually under continuous stirring until fully incorporated, before introducing the pigments. Ensure the additive is well-dispersed prior to pigment addition.

PACKAGING

25 kg iron drum with inner coating
180 kg ring plastic drum

Our team:

Our company:

We are building a new large-scale production base

strategically located in Hubei Province,with annual production capacity of 6000 tonnes of Interface additives project settled in Songzi chemical park in November 2022.

Benefits to our customers and collaboration partners:

• stable large-scale production, better quality control

• lower production unit cost

Collaboration Opportunities:

• contract manufacturing and OEM/ODM collaboration opportunities

Our Certifcate&Patents