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Zinc ferrites - Nubifer K Series


Zinc Ferrites are tan color pigments, slightly redder than Yellow Iron Oxides, used in niche Coatings applications because of its enhanced heat-fastness vs Yellow Iron Oxides. Both Nubifer Y-805K (more reddish shade) and Nubifer Y-905K (more greenish shade) are used in Powder Coatings, Coil Coatings, Stoving Paints and any other sort of Coatings that require high heat fastness. Nubifer Y-805K resists up to 300ºC and Nubifer Y-905K up to 260ºC for 5 min. Both resist longer times at high temperature e.g. 10-15 min at 220ºC, but we strongly recommend this to be checked case by case.

As regards the rest of typical properties, Zinc Ferrites show very similar properties to Yellow Iron Oxides’:
High opacity
High compatibility with all kinds of binders
Ease to disperse and to wet
Excellent solvent fastness
Excellent alkali fastness
Excellent light fastness
No metamerism
Environmentally-friendly profile

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”.
Find out more about
Nubifer Y-805K   and   Nubifer Y-905K

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