Partial repair of Chongqing city wall
1. Local wall renovation-clean the wall
The walls of old houses must be cleaned before renovation. If the wall is thick, it must be completely removed and covered with white cement. If the old wall is painted and the surface is smooth, be sure to polish off the skin on the wall with new old paint.
2. Use primer to partially renovate the wall painting.
Before repairing the wall, the primer must be applied. Only when the primer is coated on the wall surface can it resist alkali and moisture to seal the building materials, protect the surface layer and improve the texture and hiding power of the surface layer. If the wall is not painted with primer first, but directly, then even if it is exposed to the sun for a long time, the wall will look like foam and mildew for a long time.
3, local renovation of the wall-make up the area to be large.
When decorating the wall, it is best to repair the whole or large area of the wall, so that it is not easy to cause color difference and maintain the beauty of the wall. If the back wall of the top floor is annoying, it is easy to produce color difference, and the painting order of materials is different, then the decoration of the wall will not achieve the expected effect.
4. Local renovation of the wall-the old and new colors are the same.
When decorating the wall, we should pay special attention to the phenomenon of color difference. Paint shall be prepared in strict accordance with the instruction of paint bucket. Be sure to prepare enough paint, so that the color of the wall can be guaranteed when repairing the wall, and the color difference can be avoided through readjustment.
Problems needing attention in the reconstruction of Chongqing earth wall
1. Consider rebuilding the old wall-basic treatment.
When the basic level is the usual wall renewal, the agent interface should be painted to prevent the putty wall from cracking and the wall paint from falling off.
2. Consider rebuilding the old wall protection film.
Don't touch the paint film on the wall after decoration. Otherwise, the paint film will break. In addition, accelerated drying should not be used, and normal ventilation should be maintained.
? The above are the matters needing attention about the local reconstruction of Chongqing city wall and the local reconstruction of Chongqing city wall. I hope it will be useful for the renovation of old walls. The ingredients in the thinner will react with the ingredients in the latex paint, which will make the wall yellow, so once the wall is decorated, the ventilation should be improved.
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