Effect of BYK-2164 Wetting Dispersing Agents
Dual Stabilization - Combines steric hindrance and electrostatic repulsion for pigment stability
Economic Efficiency - 30% cost reduction vs. DISPERBYK-164/167 without performance compromise
Process Optimization - Reduces grinding viscosity by 40-50% for faster dispersion
Broad Compatibility - Works with inorganic/organic pigments including carbon black
Emission Control - Aromatic-free solvent blend (butyl acetate/PMAc) meets VOC regulations
Typical Applications of BYK-2164 Wetting Dispersing Agents
Automotive OEM - Color-stable basecoats for metallic finishes
Industrial Coatings - High-gloss machinery finishes with TiO₂/extenders
Packaging Inks - Flexographic inks for film printing
Wood Coatings - Acid-cured systems with improved transparency
Pigment Concentrates - High-load dispersions (up to 70% carbon black)
Technical Data of BYK-2164 Wetting Dispersing Agents
| Chemical Base | Modified polyurethane solution |
| Recommended Loading | TiO₂ 3-4%, organics 20-35%, carbon black 60-70% |
| Thermal Stability | Flash point 33°C; processable up to 150°C |
| Regulatory Status | REACH/ROHS compliant |
| Shelf Life | months (unopened) |
BYK-2164 Wetting Dispersing Agents – Frequently Asked Questions (FAQ)
Q1: What types of pigments and fillers is BYK-2164 especially effective for?
A: BYK-2164 demonstrates strong wetting and stabilization performance for inorganic pigments such as titanium dioxide, iron oxides, and carbon black, as well as functional fillers including silica, calcium carbonate, and talc—particularly in demanding aqueous systems where high pigment loading and long-term dispersion stability are required.
Q2: Can BYK-2164 be used in both anionic and non-ionic aqueous formulations?
A: Yes—BYK-2164 is designed to function effectively across a broad range of ionic environments. Its polymeric architecture provides compatibility with anionic surfactants and co-dispersants, while maintaining performance in low-ionic-strength or non-ionic systems typical of architectural coatings and industrial water-based paints.
Q3: How does BYK-2164 contribute to storage stability and viscosity control?
A: BYK-2164 helps prevent pigment agglomeration and sedimentation during storage by providing steric stabilization and reducing interparticle attraction. This typically results in lower and more consistent viscosity profiles over time, minimizing the need for post-addition rheology adjustments in finished formulations.
Q4: Is BYK-2164 suitable for low-VOC or zero-VOC applications?
A: Yes—BYK-2164 is a VOC-free, water-based dispersant with no added solvents or APEOs. It supports formulators in meeting stringent environmental requirements for architectural, industrial, and maintenance coatings without compromising on dispersion efficiency or film appearance.
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