Pigment Dispersion Chemicals
Pigment dispersion chemicals include polymeric dispersants, wetting agents, and grinding resins that stabilize organic and inorganic pigments in waterborne and solventborne systems. Proper dispersion minimizes particle size, prevents flocculation, and maximizes color strength, gloss, and tinting power in paints, inks, and coatings.
Acetylenic Diol Wetting Agent Surfynol-420 Type (EO-Modified)
CAS 27402-04-6
MOQ: 25 kg
Castor Oil Ethoxylate EL-40
CAS 61791-12-6
MOQ: 25 kg
Cationic Carbon Black Dispersant CCD-20
MOQ: 25 kg
Cationic Pigment Dispersant for Carbon Black CPD-30
MOQ: 25 kg
Dioctyl Sodium Sulfosuccinate Wetting Agent OT-75
CAS 577-11-7
MOQ: 25 kg
Fatty Acid Modified Alkyd Dispersant FAD-50
MOQ: 25 kg
Fatty Alcohol Ethoxylate AEO-9 (HLB≈13, Nonionic)
CAS 68439-50-9
MOQ: 50 kg
Gemini Surfactant Dispersant 12-2-12
MOQ: 25 kg
High-Molecular Polyacrylate Dispersant HMD-15K (MW 15000)
CAS 9003-04-7
MOQ: 50 kg
High-Molecular Polyacrylate Dispersant HMD-5K (MW 5000)
CAS 9003-04-7
MOQ: 50 kg
Hyperbranched Polymer Dispersant HBP-1000
MOQ: 25 kg
Hyperbranched Polymer Dispersant HBP-1200 (Organic Pigments)
MOQ: 25 kg
Naphthalene Sulfonate Formaldehyde Condensate Dispersant NSF-30
CAS 9084-06-4
MOQ: 200 kg
Naphthalene Sulfonate Formaldehyde Condensate NSF-10 (High Alkali Stable)
CAS 9084-06-4
MOQ: 100 kg
Phosphate Ester Metal Pigment Dispersant MPD-50
MOQ: 25 kg
Polyacrylate Dispersant MW 15000
CAS 9003-04-7
MOQ: 25 kg
Polyacrylate Dispersant MW 30000
CAS 9003-04-7
MOQ: 25 kg
Polyacrylate Dispersant MW 5000
CAS 9003-04-7
MOQ: 25 kg
Polyether Phosphate Wetting Dispersant PEPD-20
MOQ: 25 kg
Polysorbate 80 (Tween-80) Sorbitan Oleate Ethoxylate
CAS 9005-65-6
MOQ: 25 kg
Sodium Benzenesulfonate Carbon Black Dispersant CBS-40
MOQ: 50 kg
Sodium Benzenesulfonate Dispersant for Carbon Black CBS-30
CAS 515-42-4
MOQ: 25 kg
Sodium Lignosulfonate Dispersant LSS-30 (Architectural Coatings)
CAS 8061-51-6
MOQ: 100 kg
Sodium Lignosulfonate Dispersant SLS-40
CAS 8061-51-6
MOQ: 200 kg
Frequently Asked Questions — Pigment Dispersion Chemicals
What dispersants work best for organic pigments in waterborne systems?
High-molecular-weight polyacrylate and polyurethane-based dispersants with multiple anchor groups are most effective for organic pigments in waterborne systems. They provide steric stabilization around hydrophobic pigment surfaces, preventing flocculation. For carbon black, cationic or nonionic dispersants with amine groups offer strong surface affinity. The dispersant selection should be matched to the specific pigment surface chemistry and binder system.
How is fineness of grind measured in pigment dispersion?
Fineness of grind (FOG) is measured with a Hegman gauge (grindometer) — a steel block with tapered channels. The depth at which particles first appear corresponds to the grind fineness. Typical targets: architectural paints 40–60 µm (Hegman 4–5), industrial coatings 25–35 µm (Hegman 5.5–6), automotive coatings 10–15 µm (Hegman 7). Finer grind improves gloss, color development, and hiding power.
What causes flooding and floating in pigment dispersions?
Flooding (uniform color shift) and floating (surface streaking) occur when pigments of different densities, particle sizes, or surface polarities separate in the wet film. Prevention strategies include: using compatible dispersants for each pigment, adding viscosity modifier to limit convection, selecting pigments with matched surface polarities, and pre-dispersing problem pigments separately before let-down into the base.
Looking for specific raw materials?
Our technical team can recommend the right chemicals for your formulation requirements — samples available.