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CATHAYPURE™ is the series of high-purity iron oxide pigments with extremely low heavy metal content. CATHAYPURE™ is tailor-made for high-purity applications such as cosmetics, medicines and food packaging. In order to respond to different purity requirements, CATHAYPURE™ is differentiated into two series, "E" and "Z" grades.
CATHAYPURE™ 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).
CATHAYPURE™ Z-grade iron oxides are produced through a specialized manufacturing process, which makes them perfect for cosmetic and pharmaceutical companies that require the highest purity of all iron oxide pigment applications. CATHAYPURE Z-grade products surpass all governmental requirements throughout the world.View E172 and FDA Heavy Metal tolerances versus CathayPure specifications on the Color Cards & Product Literature Tab to the left.