Ultramarine Violets are mostly used in Plastics to reduce the yellowish tendency of some resins and to provide brightness to white-coloured Plastics. They can also be used to provide a violet shade to all sort of Plastic parts. As Ultramarine Blues, they lack metamerism; therefore, they do not change color in function of the illuminate.
Ultramarine Violets’ properties are very similar to Ultramarine Blues’ in terms of:
Compatibility with all kinds of polymers
Maintenance of polymer’s dimensional stability
High heat fastness (300ºC, 5 min)
Excellent light fastness
Very good weather fastness, especially in the case of well-stabilized to UV light formulations
Good resistance to alkalis (without the presence of high % of Calcium ions)
Insolubility, avoiding migration tendencies
Transparency, what make them very suitable to combine with “Effect and Metallic pigments” to reach unique color effects
Safe product in processing and final-use
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