Do I have to sanding the putty after scraping? Why sand?

Do I have to sanding the putty after scraping? Why sand? No matter what kind of decorative wall you choose, wall decoration is the largest proportion of items in home decoration. In general home decoration, we know that the wall needs to be approved to blow putty, and then apply latex paint.

After blowing putty, the process before the construction of latex paint is grinding, do you know why the wall surface of hanging putty needs to be polished? Why do you blow putty on the wall? In fact, scrape putty.

The main role is leveling, but only half of the leveling work, we can't avoid leaving some small defects in the construction process. However, putty can effectively solve these problems when polished.

<> putty will be looser after polishing, which is more conducive to the absorption and penetration of primer, so as to improve the adhesion of latex paint, so that the putty layer and the latex paint layer become one, and it is not easy to fall off, and the putty touches off the powder by hand after polishing, which is a normal phenomenon. This is because when scraping putty, there will inevitably be some minor blemishes in the process of scraping putty. For example, the joints of putty stubble, may be local scraping thinning or traces left later, because of the wall water absorption and other reasons, caused by pinholes and other defects, can be solved by wall grinding.

If you do not polish, start to do the next process, which will affect the overall effect of construction, or form a variety of uneven shapes, and repair small defects through polishing, so that the putty layer is smoother, smoother and more delicate. After polishing, the sub-layer putty is used, the surface structure is more uniform and consistent, and when we brush latex paint, we can improve the performance effect of latex paint, so as to avoid problems such as latex paint that may bring local color difference due to differences caused by surface structure. Therefore, don't ignore the boring child polishing process when decorating.

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Scraping putty is definitely to be polished, if not polished, the whole wall must not look so smooth, after sanding the whole wall is very smooth and bright, and scraped very flat.

After scraping the putty, it is necessary to polish, because you only need to scrape several processes, and each process must be polished and smoothed before proceeding to the next step.

It should be polished; This can make the wall surface more flat and more detailed, and the putty on the wall can be applied more evenly and visually more comfortable.

Yes; Because sanding can make the wall smooth, and it can also fix the small defects that existed before.

As long as the putty is dry, it can be polished, but it also depends on the weather, and it will dry in 2-3 days after the weather is good. In case of bad weather, it is best to wait until 3-5 days have passed, and be sure to dry thoroughly before sanding. It is best to sandpaper for sanding, and there are a few factors to be aware of:

First of all, the temperature, then the humidity, and the ventilation of the room. It depends on your own situation.

Just do it, every two days, but once you try to polish it, if you don't lose the powder, you're waiting.

It depends on the thickness of the putty, if the wall is uneven and the putty is used too much, the drying time will be increased accordingly; There is also depending on the weather, if the weather is sunny and the temperature is high, the putty will also dry faster, if it is in a rainy day, the air humidity is high and the temperature is low, then the putty is not easy to dry at this time; Under normal circumstances, the thickness of the putty is uniform and the weather is good, and the drying time of the putty is about 2 days before it can be polished.

Under normal circumstances, the construction of the first layer of putty is 3 days, and the drying period is about a week; The construction of the second layer is about 2 days, and the drying period is 3 days; The third layer is finely processed for about 2 days, and the drying period is also 2 days, and it can be polished.

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The putty scraped in conventional home decoration must be sanded.

For home decoration, there is generally a necessary process, that is, scraping putty. For example, our wall or roof board has to scrape putty on the base layer, and the putty is brushed with latex paint and wallpaper after scraping putty. However, there are corresponding requirements for putty construction, and if you do not operate according to the requirements, there may be many problems.

The so-called base putty refers to the putty we scrape on the wall as a decorative base layer. For example, the walls of our homes need to be pasted with wallpaper or painted with latex paint, and at this time, putty is generally scraped on the wall as the base layer of decoration. For the base layer of putty is a must be sanded.

On the one hand, the decorative effect of the surface layer is ensured, and on the other hand, the yin and yang corners of the wall are difficult to paste or brush with latex paint.

What are the situations that exist after scraping putty on the wall?

The so-called situation after the completion of the wall scraping putty refers to the fact that after the completion of the putty scraped on our wall, there will be different problems in the corresponding parts. Specifically, it is manifested in the following two points.

1. There are many particles on the surface of the putty. For example, if we scrape putty on the wall, if you look closely, you will actually find that the surface of the putty layer is not particularly smooth. Because there are a lot of particles in this kind of putty, it may be displayed on the surface of the wall after the batch is scraped.

2. There are many burrs in the yin and yang corners. The so-called yin and yang angle is the corner of the wall in our home and the isoyin angle at the junction of the wall and the roof. It is difficult to get the putty in place at one time when these parts of the filial piety are scraped, which leads to the appearance of a lot of putty burrs, so these places must be treated.

This should be like this, when you use a putty scraper to scrape the last putty, it is inevitable that there will be some smears and edges, which should be sanded with sandpaper, and these can only be painted after they are flattened.

Grinding and smoothing is a necessary process.

After scraping the chair, it must be sanded before it can be painted, otherwise it will not be smooth.

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Answer: putty wall Ling Wang with the surface of the grinding so that the putty putty wall renovation can first clean the dust on the wall, with 240 to 320 mesh sandpaper polishing, if there are cracks or hollow drum with putty to fill the foot to dry and polish, after grinding the wall can be re-scraped putty powder more primer, when the primer is dry, and then with 320 to 400 mesh sandpaper and then polish and scrape putty for the second time after the first time to dry a day as well, the first putty powder is generally in a ventilated environment for a day to dry, However, it may take two days for the thicker ones to dry thoroughly, and sometimes the drying time will be extended when the air humidity is high. When the first pass is dry, the putty powder also shrinks and settles, so wait until the first pass is completely dry before scraping the second time.

Because the surface of the putty is not smooth after scraping the putty, it needs to be sanded. And the putty should not be too thick, so it also needs to be sanded to reduce the thickness. Scraping putty is an essential thing for a car in the sheet metal repair process. Scrape putty and polish before re-painting.

After the body sheet metal is repaired, the metal surface is uneven. If the body is painted directly at this time, it will lead to poor adhesion to the paint surface, and the effect of the paint surface after painting is also poor.

Therefore, it is necessary to scrape the putty for leveling, and the putty can be painted only after it is polished.

The thinner the putty, the better. Too thick putty will affect the styling and paint effect of the body.

If the putty is too thick, it is easy to crack after a long time.

If the putty cracks, the paint surface of the body will fall off, affecting the appearance and causing rust on the surface of the body.

When sheet metal repairs, be sure to go to a professional repair organization. Professional maintenance agencies will use *** putty, which can be used for a long time.

When repairing the paint surface, you must also go to a professional institution. The quality of the paint used by non-professional institutions is very poor, and there may be color differences after spraying.

If there is a color difference, it will greatly affect the aesthetics of the body.

Because the surface of the putty is not smooth after scraping, it needs to be sanded. And the putty should not be too thick, so it also needs to be polished to reduce the thickness. Scraping putty is something that must be done in the process of sheet metal repair, and it can be repainted only after scraping and polishing the putty.

The body of the car is repaired by sheet metal, the metal surface is uneven, if the paint is directly sprayed at this time, it will lead to the adhesion ability of the paint surface to deteriorate, and the effect of the paint surface after spraying the paint is also very poor.

Therefore, it is necessary to scrape the putty for leveling, and the putty can be sprayed only after the putty is sanded.

The thinner the putty, the better, and the putty is too thick to affect the shape of the body, and it will also affect the paint effect.

If the putty is too thick, it is easy to crack after a long period of use.

If the putty cracks, the paint will peel off, which will affect the aesthetics and also cause rust on the surface of the body.

When carrying out sheet metal repair, you must go to a professional repair agency, which will use a good quality putty, which can be used for a long time.

When repairing the paint surface, you must also go to the special potato hall to fight the industry, the quality of the paint used by the unprofessional institution is very poor, and there may be color difference after spraying.

If there is a color difference, it is very affecting the aesthetics of the body.