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In the construction process, the bottom putty can solve the problem of slightly poor wall flatness, and can effectively reduce the number of times of leveling and scraping of the surface putty.
In addition, since most of the bottom putties on the market are cement-based materials, they have better moisture and water resistance.
In other words, with the underlying putty base, not only the thickness of the construction and construction efficiency can be improved, but also makes the overall performance of tidal water paint system also improves the com" href="">paint line coatingol.
com .
Precautions for the construction of bottom putty
01, deal with the base surface
The base surface requirements of the bottom putty must meet the three principles of firmness, smoothness and cleanliness.
In addition, the moisture content of the base layer should not be too high, and it is generally required to be controlled within 10%.
If the base surface does not meet the conditions, it needs to be treated first, such as eradicating the old wall, knocking off the base surface of the hollow drum, and poking the crack into a V shape for repair.
If you need to perform these operations, it is recommended to work with the wall-mounted high-efficiency P10 reinforcing agent.
When the base surface is properly processed, the construction of the bottom putty is started.
02.
Stir correctly
When mixing the bottom putty, pour clean water into the bucket first, then use the motor to stir, pour the putty powder in proportionately, keep stirring for about 3 minutes, ensure that the water and powder are fully mixed and evenly mixed to reach a state without powder clusters.
Then let it stand for 2 minutes, and then stir again for about 1 minute after the rest to increase the uniformity and avoid the problem of bubbles, and then it can be used.
Glue should not be added to the putty, and it must meet the green environmental protection standards.
03.
Guaranteed thickness
Scrape the putty slurry to the base surface to be applied with a batch knife to reach the required thickness, and smooth the surface.
Generally, the single-pass construction thickness of cement base layer putty is 3-5mm, and the single-pass construction thickness of gypsum base layer putty is 3-10mm.
The last thing to be reminded is: After the bottom putty is scraped, leave more than 4 hours of drying time, and then scrape the next layer to avoid insufficient drying time and cracking of the putty.
