During the construction of epoxy floor paint, if the knowledge of epoxy floor paint painting is not enough, problems such as whitening, hanging, blistering and cracking will appear, among which cracking is one of the serious problems. Generally speaking, the reasons for the cracking of epoxy floor paint are generally divided into two categories: quality problems of floor paint materials and construction problems. The proportion of construction problems is relatively large. Next, the reasons for the cracking of paint film and the corresponding remedial measures will be elaborated from the above two aspects.
1. Quality Problems of Epoxy Floor Paint Material
Although the quality problem of epoxy floor paint material itself will have a certain impact on the effect of paint film, the actual situation is not very likely to occur, because manufacturers will strictly control the quality of epoxy floor paint material before shipment, in order to avoid a series of paint film problems caused by material quality problems, thus smashing. My own sign.
Remedial measures: If it is determined that the quality problems of floor paint materials caused by manufacturers, you can contact manufacturers to choose appropriate solutions or choose better quality manufacturers and brands.
2. Construction Technology Problems
If the cracking of paint film caused by construction problems can be analyzed from the following aspects:
(1) Substrate treatment
The strength of the base material itself is not enough, which may also lead to the cracking of the paint film. Therefore, before the floor paint construction, the strength of the base must be ensured above C25. For those that do not meet the construction requirements, it is necessary to repair the base material and use epoxy penetrating primer to enhance the hardness of the base material.
(2) Thickness of paint film
The cracking phenomenon caused by the thickness of the paint film is mainly due to the excessive thickness of the outer film and the drying of the inner film.
(3) Temperature problem
Excessive temperature can also cause cracking of paint film. The principle is the same as cracking caused by too thick paint film. It belongs to the drying of outer coating film too fast. In order to avoid this phenomenon, we must pay attention to controlling temperature and time.
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