Mineral Pigment Particle Size and Colour Hiding Power

Why Particle Size Matters in Mineral Pigments

Particle size plays a key role in the performance of mineral pigments, influencing colour appearance, opacity and hiding power. These properties depend partly on how pigment particles scatter light, which affects how effectively a coating covers the underlying surface. Variations in particle size can therefore change the visual appearance and performance of paints, coatings and other pigmented products.

Understanding the relationship between mineral pigment particle size and light scattering helps manufacturers select suitable materials and develop formulations that deliver consistent colour and coverage. Accurate particle size measurement also supports quality control by helping manufacturers identify variations between batches.

Understand the Relationship Between Particle Size and Hiding Power

The size and distribution of mineral pigment particles influence how light interacts with a coating. An appropriate particle size distribution can help maximise light scattering and improve opacity, while an unsuitable distribution may reduce hiding efficiency or affect colour consistency.

However, the ideal particle size depends on the pigment material, its optical properties and the formulation in which it is used. Manufacturers must therefore assess particle size alongside other formulation factors to achieve the desired balance between hiding power, colour and overall coating performance.

Measure Mineral Pigment Particle Size with Laser Diffraction

The Bettersizer 2600 uses laser diffraction to measure particle size distribution quickly and reliably. The analyser measures the light scattered by particles as they pass through a laser beam and calculates the distribution of particle sizes within the sample.

This data helps manufacturers characterise mineral pigments, compare samples and investigate variations that may influence product performance. By monitoring particle size throughout production, quality control teams can assess consistency and identify opportunities to refine processing conditions.

Optimise Pigment Performance and Product Consistency

Reliable mineral pigment analysis helps manufacturers understand how particle size contributes to hiding power and coating quality. The Bettersizer 2600 provides detailed particle size measurements to support formulation development, process optimisation and routine quality control.

Whether you manufacture pigments, paints or coatings, understanding particle size can help you make informed decisions about material selection and product development. Discover how the Bettersizer 2600 can support your particle size analysis requirements and help you achieve consistent pigment performance.