Phthalocyanine blue paste Generally, water-based color paste manufacturers will choose Pigment Blue 15:3 (Pigment. Blue15:3) and Pigment Blue 15 (Pigment. Blue 15) as raw materials for the production of water-based blue paste. . Among them, blue 15:3 pigment has a purple phase, small particle size, bright color, and a structure that is not as stable as blue 15 pigment. Its main advantages are strong tinting power and bright and bright colors; its disadvantages are product storage and coloring stability, light and weather resistance The stability is relatively poor. Pigment Blue 15 is a green-phase blue with higher light and weather resistance than purple-phase blue. It has good stability and is suitable for color mixing of exterior wall paints. Phthalocyanine pigments are all copper phthalocyanine. If the paint manufacturer prepares paint products that have restrictions on copper ions, they can avoid using phthalocyanine blue water-based colorants.
Ultramarine blue pulp is an inorganic ultramarine pulp. It has excellent light and weather resistance, but its tinting strength is poor compared to phthalocyanine blue. The hue is purple-blue, which is very bright. It is often used to create bright purple or purple-blue colors. It is also often used to eliminate the yellow phase of fillers in interior wall paints, improve the brightness of the paint, and have a whitening effect. What needs to be noted when using it is that it must not be applied to strong alkali systems. If you must use this type of color paste, you should use a special type of ultramarine blue paste that has been treated with good alkali resistance. Compared with phthalocyanine blue paste, one of the biggest advantages of ultramarine is its temperature resistance, but its disadvantage is its poor alkali resistance. <br /
