Coatings, Inks & Specialty Chemical Production calculator
Pigment Dispersion Time Calculator
Use this calculator to plan how long a mill base or pigment dispersion will occupy a high-speed disperser, bead mill, or media mill. It is useful when Hegman grind, color strength, viscosity, or temperature rise controls release timing.
What this calculator does
- Estimate pigment dispersion time from dispersion workload, mill or disperser rate, and allowance for grind checks and viscosity adjustments.
- scheduling pigment dispersion, grind, or mill-base processing time
- The result helps schedule mills and predict whether dispersion will delay letdown or filling.
Formula used
- Base pigment dispersion time = pigment dispersion workload ÷ mill or disperser processing rate
- Estimated pigment dispersion time = base time × allowance factor
Inputs explained
- pigment dispersion workload: Use pigment, mill-base, or dispersion batch weight that must be processed to target grind.
- mill or disperser processing rate: Use a proven rate for the pigment type, solids level, media mill, disperser, and viscosity.
- Hegman grind and adjustment allowance: Add time for Hegman checks, temperature control, viscosity cuts, defoamer additions, and recirculation.
How to use the result
- Use it when planning mill-base production, troubleshooting long grinds, or comparing disperser rates.
- Treat the result as a planning estimate until the formula is confirmed against the approved batch sheet, lab data, raw-material COAs, tank calibration, packaging tare weights, solvent loss, operator practice, and actual production or QC records.
Common questions
- What is the pigment dispersion time calculator for? It estimates hours required to complete a pigment dispersion or grind step.
- What information should I enter? Use dispersion workload, processing rate, and allowance for grind checks and adjustments.
- What does the result tell me? The result helps schedule mills and predict whether dispersion will delay letdown or filling.
- When is the result only an estimate? Treat the result as a planning estimate until the formula is confirmed against the approved batch sheet, lab data, raw-material COAs, tank calibration, packaging tare weights, solvent loss, operator practice, and actual production or QC records.
Last reviewed 2026-05-12.