Epoxy floor is suitable for various areas, such as electronic factory, hospital, chemical factory, garment factory, warehouse and so on. Reminds the friends who are constructing the epoxy floor to pay attention to, must pay attention to the following points, lets everybody prevent the epoxy floor cracking. Defects: 1. Fine cracks in epoxy floors: Fine lines can be observed with a ten-fold microscope, though they are not easily recognized by the naked eye after coating. It is caused by the internal force of the coating which exceeds the cohesion of the film itself and causes the rupture of the coating surface. It does not damage the appearance of the film, and is the inevitable result of the aging of the film. But if this happens soon after painting, it is a pathological condition. 2.环氧地坪粗裂：涂膜在涂装后不久产生明显粗裂纹，有时可见底的现象。
2. epoxy floor crack: the coating will produce obvious cracks shortly after coating, and sometimes the bottom phenomenon can be seen.
3. epoxy floor cracks: the coating appears after the painting is similar to the phenomenon of cracks on the back of the turtle. Crocodile skin cracks and glass cracks also have similar phenomena.
Causes of cracking on epoxy floor:
1. Coatings with high hardness and poor flexibility after drying, such as coatings made from fatty acids or esters containing co-double bonds;
2. the first coat of paint is not dry enough to be painted with two lacquers, and the two layers of coating have different internal and external expansion forces.
3. the coating is not suitable, for example, the primer layer is more flexible than the topcoat coating.
4. there are too many volatile components in epoxy floor coatings, which affect the bonding force of film forming and cause the film to dry crack.
5. the coating is too thick, the surface layer is dry and the inner layer is not dried.
6. excessive dosage of drier or improper matching of various driers.
7. coating is applied in polluted environment such as sulfur dioxide and ammonia.
8. The paint is not stirred before use, the upper resin has more pigments and less, while the lower paint has more pigments and less resins, so it is easy to crack after painting.
9. the weatherability or temperature resistance of the coating is poor.
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