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13
2024
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03
Construction knowledge: an effective way to improve the adhesion of putty
Putty adhesion will directly affect the construction quality of the coating. Many projects only found poor putty adhesion in the construction process. However, the construction of exterior wall putty has been completed in a large area. Considering various factors such as construction period and cost, it is no longer possible to replace exterior wall putty. In this case, is there any way to improve putty adhesion?<br>Encountered the construction of the project, found that the external wall putty adhesion is poor, can through the following several ways to improve the putty adhesion:</br>
Putty adhesion will directly affect the construction quality of the coating. Many projects only found poor putty adhesion in the construction process. However, the construction of exterior wall putty has been completed in a large area. Considering various factors such as construction period and cost, it is no longer possible to replace exterior wall putty. In this case, is there any way to improve putty adhesion?
Encountered the construction of the project, found that the external wall putty adhesion is poor, can through the following several ways to improve the putty adhesion:
1. Water drenching maintenance method improves putty adhesion
The main component of the exterior wall putty is cement, which will increase the strength after the cement meets water. Therefore, after the completion of the construction of the exterior wall putty, the putty can be cured by rolling or spraying to improve the adhesion of the putty.
2. Transparent penetration primer to improve putty adhesion
Once the external wall putty adhesion is found to be poor, do not use colored alkali resistant sealing primer, to use transparent sealing primer, transparent sealing primer relative to colored primer, permeability will be better, can strengthen the external wall putty, improve putty adhesion.
3. Properly add water to the sealing primer to improve the adhesion of putty
During the construction of many projects, the primer is used directly after opening the barrel, which will affect the permeability of the primer. It is reasonable to add water to dilute the primer properly so that the primer can penetrate into the putty base layer, thus improving the adhesion of the exterior wall putty.
4, primer construction to avoid direct sunlight wall can improve putty adhesion
Especially in summer, the temperature of the wall surface exposed to direct sunlight is very high, and the primer will soon form a film after rolling and cannot penetrate into the base layer of the exterior wall, which will cause poor adhesion. On the contrary, to avoid the wall surface exposed to direct sunlight, the primer should be added with more water to fully penetrate the base layer of putty, which will improve the adhesion of putty.
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