We in the construction of epoxy floor paint, the thickness of the film will be controlled, then how do we control it? The following epoxy floor for you to introduce how to control the thickness of the 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 do not cause waste of resources. We should control the thickness of epoxy floor construction film from the following two aspects.
1, first of all, wet film thickness should be tested.
Wet film thickness measurement is generally used by the coater to guide the construction staff to determine the expected dry film thickness required to coat the specified amount of paint. The measuring instruments for measuring the thickness of wet film are two types: wet film thickness gauge and wet film thickness comb rule. The advantage of wet film detection is that improper film thickness can be checked and corrected during the coating process. If the builder knows the wet film thickness, the dry film thickness can be estimated by multiplying this data by the volume percentage of the solid content of the paint. Or the builder can estimate the dry film thickness by the amount of paint used in small area construction and combining the recommended data in the product specification.
2, then do a test on the thickness of dry film.
The importance of measuring the dry film thickness of epoxy floor coatings is to ensure that the coating reaches the prescribed thickness and avoid premature failure of the coating due to improper thickness, especially for floor coating. The measurement of dry film thickness must be made by dry film thickness gauge after the film is completely dried. There are destructive thickness gauges and calipers used for dry film thickness measuring instruments commonly used in floor paint. The requirements for film thickness are generally as follows: the average value of all test points should not be lower than 90% of the specified dry film thickness; the number of test points that do not reach the specified dry film thickness should not exceed 10% of the total number of test points. When the specified thickness can not be achieved, the following treatment should be carried out: the qualified rate is less than 80%, need to be fully repaired; the qualified rate is 80% - 90%, should be done according to local repairing.