Лако-красочные материалы — производство

Blue ultramarine can be used in any polymer; violet ultramarine has a maximum processing temperature of 280 °C, and pink ultramarine has a maximum process­ing temperature of 220 °C. With PVC, acid-resistant grades are commonly used if
color fades during processing. Surface-treated grades are available for enhanced dispersibility. Ultramarines do not cause shrinkage or warping of polyolefins. Ultra­marine pigments are permitted worldwide for coloring food-contact plastics.