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CATHAYPURETM is the series of high-purity iron oxide pigments with extremely low heavy metal content. CATHAYPURETM is tailor-made for high-purity applications such as medicines and food packaging. In order to respond to different purity requirements, CATHAYPURETM is differentiated into two series, "E" and "Z" grades.


CATHAYPURETM E-grade iron oxides are offered for pet food and general food packaging. E grades conforms with the requirements of EC food legislation (EC-Directive 95/45/EEC), E172, as well as American FDA regulations (title 21 section 73).


CATHAYPURETM Z-grade iron oxides are produced through a specialized manufacturing process, which makes them perfect for companies that require the highest purity of all iron oxide pigment applications. CATHAYPURETM Z-grade products surpass all governmental requirements throughout the world.