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products · Markets · Plastics

Zinc Ferrites & Nubifer K Series


Zinc Ferrites have been able to reach a niche market in Plastics because of its enhanced heat-fastness vs Yellow Iron Oxides. Nubifer Y-805K stands up to 300ºC (5 min) and Nubifer Y-905K, up to 260ºC (5 min).

Regarding coloristics, Zinc Ferrites are tan color pigments, slightly redder than Yellow Iron Oxides. Nubifer Y-805K is redder than Nubifer Y-905K.

As regards the rest of typical properties, Zinc Ferrites show very similar properties to Yellow Iron Oxides’:
Compatibility with all kinds of polymers
Easy-dispersion
Maintenance of polymer’s dimensional stability
Excellent light fastness
Excellent weather fastness
Excellent resistance to chemicals
Insolubility, avoiding migration tendencies
High opacity
Highly suitable to combine with organic pigments of higher tinting strength but lower durability, to enhance their properties
Environmentally-friendly profile

Some of the most relevant applications are:
Synthetic turf (Zinc Ferrite is used as a “durable” base pigment in combination with PG 7)
Automotive interiors
Wood Plastics Composites
Imitation of wood
Synthetic leather

As well as our Nubifer Y-7050 heat resistant Yellow Iron Oxide, Nubifer K Series can be used as a replacement for Pigment Brown 24 (PBr24) and red organic pigments both in Plastics and high temperature cured Coatings. This substitution allows formulating beige, green, red and brown color shades at reduced cost keeping the same chemical and physical properties, therefore, Nubifer K Series and Nubifer Y-7050 are cost-efficient high performance solutions for Plastics and high temperature cured Coatings”

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