1. Epoxy floor should be well mixed before construction. The density of several kinds of pigments in composite paint is different. Heavy pigments gradually sink in storage and light pigments gradually float. If not stirred uniformly, the epoxy floor will not match the original color after construction.
2, metal pigments should be separated from varnish. Metal powder pigments in storage will suffer from the corrosion of free acid in paint and will turn black to green.
3, paint with high acid value should not be packed in iron drum. The varnish with higher acid value is easy to react with iron packaging barrel, and the transparency of the varnish decreases and the color becomes darker.
4, select the resin and pigment in the coating formula according to the need. The light and heat resistance of some pigments in coatings are not good. Some resins have poor weather resistance and are easily yellowed when exposed to light.
5, attention should be paid to the use of pigments that can react with resins or auxiliaries when designing coating formulations. It is strictly forbidden to mix two different types of coatings with mixed coloring without experimenting in construction.
Some pigments in coatings will undergo chemical changes, lose the inherent dyeing power of the pigments, and cause fading or discoloration. Blue or green paint containing iron blue will fade during storage, but the pigments exposed to air will gradually recover after construction.
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