In the process of epoxy floor paint construction, we will control the thickness of the paint film, so how should we control it? The following epoxy floor for you to introduce how to control the thickness of the paint film, I hope to help you. The purpose of controlling the thickness of epoxy floor construction film is to make the thickness of epoxy floor construction film not only meet people's needs but also not cause waste of resources. We should control the thickness of epoxy floor construction film from the following two aspects.
1. First of all, the thickness of wet film should be checked.
Wet film thickness measurement is generally used by the coater to guide the builder to determine the required amount of paint to be coated in order to obtain the expected dry film thickness. The measuring instruments needed for measuring the thickness of wet film are: wet film thickness wheel gauge and wet film thickness comb gauge. The advantage of wet film detection is that inappropriate film thickness can be checked and corrected during the coating process. If the builder knows the thickness of wet film, the thickness of dry film can be estimated by multiplying this data by the volume percentage of solid fraction of the paint, or the builder can also estimate the thickness of dry film by using the amount of paint used in small area construction, combined with the recommended data of product specifications.
2. Then make a measurement of the thickness of the dry film.
The importance of measuring the dry film thickness of epoxy floor paint lies in ensuring that the coating reaches the required thickness and avoiding premature failure of the coating due to inappropriate thickness, especially for floor coating. Dry film thickness must be measured by dry film thickness gauge after the film is completely dried. Destructive thickness gauges and calipers are commonly used for dry film thickness measuring instruments of floor paints. The requirements for film thickness are as follows: the average value of all measuring points should not be less than 90% of the prescribed dry film thickness; the number of measuring points that fail to reach the prescribed dry film thickness should not exceed 10% of the total number of measuring points. When failing to reach the required thickness, the following treatment should be carried out: the qualified rate is less than 80%, requiring comprehensive repairing; the qualified rate is 80% - 90%, and local repairing should be done according to the situation.
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