Raw material for aluminium pigments that is created by atomising aluminium melt at high pressures.
The sensation of colour intensity
Circulation stability is a value to characterise the stability of effect pigments in paint formulations. Due to its shape and chemistry metal pigments can be stressed with high shear energy caused by the recirculation systems with high pressures and flow. This could lead to deformation or fracture of the pigments resulting in colour deviations.
Pigments that are neither black nor white
Standard form of metal effect pigments, irregular edges, relatively high light scattering.
The ability of a pigmented coating, at a specific layer thickness, to mask the colour differences of the substrate. In the case of metallic effect pigments, the following generalisation holds true: "The greater the proportion of fine particles, or the finer the pigment, the better the covering power."
Collective term for pigments that have special properties as a result of reflections, optical refraction, interference or similar optical phenomena.
Weathering test, international standard in, for example, the automotive industry.
The greater surface tension of the pigment relative to the solvent results in the air "sticking" to the pigment; this creates the uplift necessary to make the pigment float to the surface of the coating. The wetting behaviour of the pigment is said to be poor.
Ratio of the thickness of a platelet-shaped pigment to its diameter.
Metallic pigments that float to the surface of the drying film due to their wetting behaviour
Metallic pigments that, due to their wetting behaviour, orient themselves throughout the film, preferably towards the substrate.
An effect pigment that, due to its layer-like structure, displays multi-coloured shimmer effects (similar to mother-of-pearl).
In order to create specific optical or chemical properties, platelet-shaped pigments can be covered with a coating of, for example, organic polymers, inorganic polymers or a combination of active ingredients.
A pigment concentrate is a pigment preparation, such as pigment paste, pigment suspension or solid-in-solid preparations, in which the pigments are dispersed in a low binder content.
As the pigment suspension, a solid-liquid mixture that does not have good flow properties. (ratio of solid-liquid e.g. 2:1).
Suspension of a pigment in a liquid. Unlike pigment paste, the suspension has good flow properties (ratio of solid-liquid e.g. 1:2).
Special form of metallic effect pigments (ideally circular) that have a shorter periphery than cornflakes resulting in less light scattering and greater brilliance.
An effect that is predominantly observed with relatively coarse metallic effect pigments and that is caused by high reflection and little scattering of light. Individual pigment platelets can clearly be seen.