Dispersing Agent, Speciality Additive, Water-borne

VP 6220 Waterborne polymer dispersant

The 6220 Waterborne Polymer Dispersant is a high-performance, functional additive engineered specifically for the stabilization of organic and inorganic pigments within aqueous systems. Utilizing advanced controlled radical polymerization technology, this dispersant features a precisely defined block copolymer architecture that ensures exceptional anchoring to pigment surfaces. By providing robust steric hindrance and electrostatic repulsion, it effectively prevents pigment flocculation, sedimentation, and syneresis. The 6220 grade is particularly renowned for its ability to significantly reduce mill-base viscosity, allowing for higher pigment loading and improved processing efficiency. Its unique chemical structure facilitates superior color development, transparency, and high gloss across a wide range of resin chemistries, including acrylics, polyurethanes, and epoxies. Furthermore, this dispersant is formulated to be VOC-free and APEO-free, aligning with modern environmental regulations and sustainability standards. It serves as a critical component in formulating high-quality architectural coatings, automotive refinishes, and specialized industrial inks where long-term color consistency and dispersion stability are paramount.

Attributes

Key Features and Benefits

Exceptional pigment wetting capabilities reduce grinding time and energy consumption during the manufacturing process.
Optimizes color strength and transparency for high-performance organic pigments and carbon blacks.
Provides outstanding long-term viscosity stability, preventing gelling or pigment settling in stored formulations.
Enhances coating properties, including increased gloss, improved leveling, and reduced haze in clear-coat systems.
Universal compatibility with various water-thinnable resins, including PUDs and waterborne acrylic emulsions.
Environmentally compliant formulation is free from alkylphenol ethoxylates (APEO) and volatile organic compounds (VOC).
Reduces water sensitivity in dried films, maintaining superior humidity and corrosion resistance.

Specifications

Technical Highlights

Chemical Nature: High molecular weight block copolymer with pigment-affinic groups (typically ammonium salt).
Active Content: Approximately 40% to 50% non-volatile matter optimized for aqueous delivery.
Solvent System: Water-based medium, ensuring low odor and ease of incorporation into cold blends. pH Range: Stable performance across a broad pH spectrum, typically effective between 7.0 and 9.5.
Density: Approximately 1.04 to 1.08 g/cm³ at 20°C, facilitating accurate volumetric dosing.
Lowered Surface Tension: Significantly reduces dynamic surface tension to improve pigment penetration and air release.
Anchoring Groups: Multiple amine-based or acidic anchoring sites ensure irreversible adsorption.

Download Technical Data Sheet (TDS)

Practical industry uses

Applications

Premium architectural coatings, providing uniform color distribution in high-gloss and semi-gloss decorative paints.
Automotive OEM and refinish coatings, ensuring metallic flake orientation and deep-tone carbon black stabilization.
Industrial waterborne wood coatings, enhancing wood grain clarity and preventing pigment rub-out issues.
High-performance pigment concentrates and universal colorants for point-of-sale tinting systems.
Water-based flexographic and gravure inks, improving dot gain control and color density on film substrates.
Coloration of aqueous adhesives and sealants where mechanical stability during high-shear mixing is required.
Surface treatments for specialty paper and textile printing applications.