Epoxy floors must have some sort of fading cause, but you may not know why it happens and how to prevent it. 1. Epoxy floor should be well mixed before construction. The density of several kinds of pigments in the multi-color paint is different. The heavy pigments sink gradually in storage and the light pigments float gradually. If the pigments are not stirred uniformly enough, they will not match the original color after application. 2、金属颜料应与清漆分装。
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.
High acidity varnish is easy to react with iron packaging barrel chemical reaction loss varnish transparency decreased, color darkening.
4, select the resin and pigment in the coating formula according to the need.
Individual pigments in the paint have poor light and heat resistance, and some resins have poor weatherability, and are prone to yellowing 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 without experimentation in the construction of color matching.
Some of the pigments in the material will change chemically, losing the inherent coloring power of the pigment, causing discoloration or discoloration. Blue or green paint containing iron blue will fade during storage, but the pigment exposed to air after construction will gradually recover.
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