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Phenomenon: uneven film gloss, light and dark distribution, often appear in mercerized, semi-light products
the reason:
1) The basal porosity is not uniform and the adsorption of resin is different;
2) The thickness of the primer and topcoat is uneven;
3) Local dry spraying when spraying;
4) Use different construction tools for the same wall;
5) Different batches of products are used on the same wall;
6) Failure to effectively "wet-join";
7) The substrate temperature is too high or the paint dries too quickly.
Solution:
1) The use of primers, especially at the local repair sites, must be accompanied by primers and primers before the top coat is applied.
2) Make sure the thickness of each layer is the same and there is no leakage brush;
3) Make sure to use a consistent tool and use the same batch of products on the same wall to ensure wetting in the compartments.
4) Ensure that the construction conditions and construction process meet the requirements;
5) Select the appropriate thinner according to different climates to adjust the drying time of the paint.
Experience talk paint coating
Reflective Material Car Number Plate Co.,Ltd , http://www.nsreflectivematerial.com