熱門關鍵詞：濟南彩鋼板 | 濟南復合板 | 濟南彩鋼瓦 | 濟南c型鋼 | 濟南鋼結構 |
The bad phenomenon of color steel tile innovation is that the paint film is scattered. Assuming that the construction treatment is not good, it is relatively common. The main reason for the scattering of innovative paint film of color steel tile is improper construction operation, which leads to the iron adhesion between the surface paint film and the metal surface, and the paint film will form small pieces or scales. In order to avoid the occurrence of this phenomenon, let's analyze it in detail below.
1、 Color steel tile innovative metal surface treatment is not sufficient and over lubricated. Before spraying, the surface of the substrate is not treated or not cleaned, and there is residual water, oil stain, scale, etc. on the surface. The adhesion of paint film usually comes from two aspects: on the one hand, it is the physical absorption force and the hook, overlap, entanglement and winding force between small structural domain structures; On the other hand, it comes from the separate forces produced by various chemical bonds. If the substrate is too lubricated, the physical separation force of the coating film on the substrate will become weak, resulting in the paint film can not adhere to the substrate, resulting in the scattering of innovative paint film of color steel tile.
Solution: polish the lubricating surface into a flat surface, and completely clean the water, oil and oxide skin.
2、 The innovative primer of color steel tile is not selected correctly, and the paint film is scattered. For example, the paint film is too hard, so that the top coat is not easy to bond or the gloss of the primer is too large. The primer and finish coat are not matched, the adhesion between constituent layers is poor, and the compatibility is poor.
Solution: select intermediate paint or topcoat products matched with primer, and high-performance innovative special paint for color steel tile is the prerequisite for doing a good job in the project.
3、 The innovative special paint for color steel tile shall not be sprayed too thick or the paint film layers are not dry. In case of water vapor, the paint film is monotonous and poor. Assuming that the thickness of the finish paint film is too thick or the solvent in the primer can not be brought into full play for other reasons, the paint film interface between layers will form a honeycomb due to the existence of solvent, resulting in loose film, reduced strength and reduced adhesion. Once damaged, it will form scattered.
Solution: the innovative paint film of color steel tile needs to be dry and polished, and can be coated with finish paint to increase the adhesion between coatings. However, avoid excessive monotony of primer. After the primer is excessively monotonous, there is a lack of separation force from chemical bond between the topcoat and the primer, which will reduce the adhesion between layers and lead to scattering. In order to avoid layer peeling, it is also important to note that it is strictly prohibited to expose the coating for a long time. If the exposure time is too long, the substrate or primer is easy to be polluted by foreign matters such as oil. When the surface is powdered or new chemicals are generated due to long-term exposure, the topcoat cannot be in full contact with the primer or substrate, which will also affect the adhesion between the coatings, forming a scattered innovative paint film of color steel tile.
As the peeling caused by the performance of the innovative special paint for color steel tile is rare, most of them are caused by the unclean treatment of the substrate, or the primer exceeds the regular coating distance and does not suspend the cleaning treatment according to the request. Therefore, the key to the liquidation before installation is to ensure sufficient adhesion between the coatings and prevent scattered defects.
This article is provided by Jinan Caigang tile. Our website is: http://www.cheholam.com We will serve you with wholehearted enthusiasm. Welcome to visit!