Xin Shell Coating
In China, the paint used for the inner wall, outer wall, ceiling, ground and bathroom of the building is generally called architectural paint. But nowadays, some buildings will have peeling, shedding, flowering, pan-alkali and other phenomena within a period of time after the coating, which greatly reduces the appearance. So are there any specific ways to solve these problems about architectural coatings? The following Xin Shell Coatings will introduce to you one by one.
1. Flaking:
Irregular cracks have occurred on the surface of the coating film, which has lost the understanding of adhesion, resulting in separation from the coated surface. Reason: There are problems with the material itself, some materials have insufficient film-forming performance, that is, they cannot form a continuous film and cause irregular cracks. These coatings will come off when they encounter water; in addition, there are construction reasons, such as the substrate is not flat enough 2. The powders were not completely removed, causing the paint to peel off.
Solution: Repaint with high-quality external wall latex paint to improve its surface adhesion and water resistance; clean the loose paint on the surface with steel wire and other cleaning materials, and then polish the edge with fine sandpaper and rinse with water Clean, and finally apply an appropriate amount of primer after drying.
2. Fading:
After painting, the surface color durability is not high, and the phenomenon of fading and discoloration occurs. Reason: related to the pigments used, some are due to the low quality of the paint, such as poor light resistance, alkali resistance, etc .; on the other hand, due to the impact of the external environment, such as sunlight, ultraviolet radiation, atmospheric pollution, the impact of chemical materials All will cause discoloration and discoloration of the surface.
Solution: Correctly select high-quality exterior wall coatings, choose base materials and pigments with good weather resistance; and remove the powder on the surface before painting.
3. Hanging:
The phenomenon of the paint flowing down on the coating film is called sag. Mostly appear in vertical planes or corners. Generally, those that appear on the vertical plane are vertical curtain-shaped sags, and those that appear at the corners are tear-drop-shaped sags. Reason: Excessive thinner leads to the viscosity of the paint being too small, causing the paint to fall on the surface of the object due to failure to meet the normal construction requirements; the paint surface has oil, water and other dirt causing the paint to not adhere well Falling down and flowing on its surface; external environmental influences, such as: the ambient temperature of the construction site is too low, resulting in a decrease in the drying speed of the paint, so the fluidity is greater during the film formation process.
Solution: Use good paint and paint, add appropriate amount of thinner matching with the paint used to increase viscosity, do not add too much; thoroughly clean the painted surface, especially for oil, water and other contaminants; control Good temperature and humidity at the construction site to ensure that the temperature is maintained above 10 ℃, and the humidity is less than 85%.
4. Mold on the surface:
Reason: Due to the existence of a large amount of organic matter in the paint, which supports the growth of mold, it is easy to grow mold on the coated surface in a humid environment; the quality of the paint itself is not good, and the content of the mold inhibitor in the paint fails to meet the requirements.
Solution: Choose a paint with good quality, which contains an appropriate amount of antifungal agent; if mildew has occurred, you can use household bleach for cleaning the surface of the paint, dilute and brush the surface with a brush, rinse with clean water after cleaning, then Brush again with detergent to prevent the growth of mold again.
5. Shrinkage:
Shrinkage, also known as craters, refers to the shortcomings of small round pits on the coating film. Reason: The air bubbles generated cannot be escaped in time due to excessive force during the painting process, or the painting method used is inappropriate; water, oil and other substances are present on the painting tool, which makes the painting surface uneven.
Solution: Choose an appropriate method for painting. The painting process should not be too fast and too hard; the painting tool should be cleaned, kept clean, and the surface treated.
The above content is provided by Xin Shell Coatings . Choose Xin Shell Coatings when buying paints !
Accessories Features
1,The models at the same work up to the movable cone diameter. Thus, with the same type of cone crusher, having a higher performance and productivity.
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