What are the processes and precautions in the construction of exterior wall paint?


With the development of economy and life, people's requirements for building exterior wall coatings are increasing day by day. Therefore, the current application of exterior wall paint in building construction mainly includes protecting the building surface from the influence of weather, pollution and daily wear and tear, while improving the aesthetics of the building appearance. Exterior wall paint has certain waterproof, anti-pollution, durability and UV protection capabilities, which can effectively prolong the service life of the wall. Although exterior wall paint can effectively improve the aesthetics and durability of the building surface, there are still some things to pay attention to during construction:

 The construction process of exterior wall paint in signage production is as follows:

 1. Preparation: First, clean and repair the surface of the sign to ensure that the surface is clean and smooth. Signs are sanded to remove old coatings and repair surface irregularities. Then, apply a primer to provide a good base.

 2. Intermediate painting: After the primer is dry, apply an intermediate paint suitable for the design of the sign. According to the theme and needs of the signage, choose the appropriate color and effect to enhance the visual effect of the signage.

 3. Surface coating: After the middle coating is dry, the construction personnel selects the exterior wall paint suitable for the sign theme and identification requirements, and paints the surface. The top coat is durable and weather resistant, protecting the sign surface from daily wear and tear and the elements.

 In addition, in the construction stage of exterior wall paint, there are some matters needing attention:

 1. Air temperature control: Pay attention to the air temperature of the environment during construction. Generally speaking, if the temperature is too low, it may affect the drying time and adhesion of the exterior wall paint, while if the temperature is too high, the exterior wall paint may dry quickly, resulting in a rough surface. It is recommended to apply in the temperature range of 10℃-35℃.

 2. Coating thickness: The thickness of the coating needs to be reasonably controlled during construction. Coatings that are too thick may result in sagging, blistering and cracking, while coatings that are too thin may fail to provide protection and aesthetics. The thickness of the coating needs to be determined according to the requirements of the coating and construction experience.

 3. Construction technology: Construction personnel need to have certain construction technology and experience, and be familiar with the operation method and construction process of the coating. Ensure the uniformity and quality of the coating and avoid problems such as missed brushes, drips and brush marks.

 4. Appropriate construction: During the construction process, it is necessary to moderately control the drying time of the coating to avoid too fast or too slow drying. Too fast drying may result in insufficient coating adhesion, while too slow drying may affect application progress and quality.

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Post time: Aug-09-2023