Coating Terms

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Description
1) Scattering of a substance in another substance in small particles.
2) Homogeneous and stable mixture obtained by dispersion process.
Process of preserving the homogeneous and dispersed state of the pigments in the paint. Stabilization is achieved by two basic mechanisms: (a) Pigment interfaces are electrically charged using convenient additives, therefore repulsion force between particles of similar charge keeps the pigments from agglomeration; (b) Polymeric dispersion additives carrying pigment-loving groups prevents the pigments from agglomeration by forming a polymer layer around the pigment particle (: steric hindrance)
Breaking down of pigment flocculates which are combined as agglomerates or aggregates, in a binder and solvent medium. Dispersion of pigments and extenders is performed using high-speed dispersers and wet mills.