The role of exterior wall putty and construction process

Putty plays an indispensable role in wall decoration. Whether it is interior or exterior walls, putty is an important material to ensure that the wall surface is flat, smooth and beautiful. However, compared with interior wall putty, exterior wall putty has some unique functions due to its special use environment and functional requirements. Next, let's take a closer look at the role of exterior wall putty.

The role of exterior wall putty

Make up for the defects of the base layer and level it External wall putty can fill small holes and gaps on the wall or ceiling, making the wall surface smoother and meeting the flatness requirements of decoration. In addition, elastic putty can also cover cracks less than 0.5mm, making the wall surface smooth again, providing good base conditions for the subsequent application of paint or finishing materials.

Appearance decoration

Exterior wall putty not only has the function of leveling, but also can provide a variety of textures or patterns. By mixing different colors and textures, exterior wall putty can form a variety of personalized patterns or designs, adding beauty to the exterior walls of buildings and meeting people's aesthetic needs for the appearance of buildings.

Waterproof and anti-corrosion function

Exterior wall putty generally has the characteristics of waterproof and anti-corrosion, which can effectively protect the building from water erosion and corrosion and extend the service life of the building. Especially in rainy and humid areas, the waterproof performance of exterior wall putty is particularly important.

Other special purposes

In addition to the above functions, exterior wall putty can also be used as a tile adhesive to improve the adhesion between tiles and walls and enhance the overall performance of the wall. At the same time, in the specific construction process, exterior wall putty can also be flexibly applied as needed to meet the needs of different projects.

Construction process of exterior wall putty

The construction process of exterior wall putty is a rigorous and meticulous process. The following will introduce its construction steps in detail:

Grassroots processing

Base treatment is the first and most critical step in the construction of exterior wall putty. First, it is necessary to remove the peeling and loose parts of the wall and fill them with cement mortar to ensure that the wall is flat and free of impurities. At the same time, it is also necessary to shovel away the remaining ash and sweep the wall clean to provide good base conditions for the subsequent putty construction.

Repair wall

After the base treatment is completed, the wall needs to be repaired. For the bumps and potholes on the wall, water plaster can be used for leveling. After drying, use sandpaper to grind off the protrusions to ensure that the wall is flat as a whole. In addition, for problems such as wall damage and cracks caused by wall demolition and reconstruction during the exterior wall decoration process, you can also use exterior wall putty to repair them and restore the exterior wall to its original state.

Scrape putty

Puttying is the core link of exterior wall putty construction. Before putting tying, the putty needs to be prepared according to the prescribed ratio. Usually, the weight ratio of putty is a mixture of latex, talcum powder (or white powder) and carboxymethyl cellulose. According to the flatness of the wall surface, determine the number of times to putty, generally three times. A period of time needs to be left between each puttying to ensure that the putty is fully dried. When putting tying, it is necessary to pay attention to the uniformity and thickness of the putty to avoid uneven thickness.

Polishing and inspection

After scraping the putty, the wall needs to be polished and inspected. The purpose of polishing is to remove the uneven parts of the putty surface and make the wall smoother. At the same time, it is also necessary to check whether the putty is evenly applied, without any missing scraping or bulging. If there are any areas that do not meet the requirements, they should be repaired and handled in time.

Maintenance and protection

After the putty construction is completed, it needs to be maintained and protected. During the drying period of the putty, it should be avoided from direct sunlight and rain to avoid affecting the quality and effect of the putty. At the same time, it is also necessary to prevent pollution and damage during the construction process to ensure the cleanliness and integrity of the wall.

Precautions for the construction of exterior wall putty

Control of construction environment

Putty construction needs to be carried out under suitable environmental conditions. Before construction, the temperature, humidity and ventilation of the construction site should be checked to ensure that they meet the construction requirements. During the drying period of putty, it is also necessary to pay attention to controlling the temperature and humidity of the construction environment to avoid problems such as cracking and falling off of the putty.

Mastering construction technology

Putty construction requires certain skills and experience. Construction workers need to be familiar with putty proportions, scraping methods, and polishing techniques to ensure construction quality and effect. At the same time, they also need to pay attention to safety issues during construction, such as wearing protective glasses and gloves.

Selection of putty materials

Choosing high-quality putty materials is the key to ensuring construction quality and effect. When purchasing putty, you should choose products produced by regular manufacturers and check the product's quality inspection report and qualification certificate. At the same time, you also need to choose the appropriate putty type according to the wall material and decoration requirements.