How to avoid yellowing of old wall scraping putty?

When this happens, as long as the wall is strong enough, the interface agent can be used first.

Do the closure treatment, and then scrape the putty normally.

Brush latex paint. You can first roll the glue twice and then scrape the water-based interior wall putty, and then apply the primer twice and then scrape the putty, it should be noted that each step should wait for the previous material to dry before proceeding. In the construction, it is better to use paste putty or plate putty.

Wait for the putty to dry thoroughly and use fine sand.

After sanding, it will turn white, after the wall is treated, first use the primer of the wall paint to brush the wall, remember, you must wait for the primer to dry thoroughly before you can brush the first paint, and then brush the second topcoat after drying.

If the old wall is still yellowed after scraping the putty three times, you can reapply a layer of white cement.

Or it is possible to apply a primer and then paint the interior wall. Whether it is repainting or pasting wallpaper, you don't want to let your hard work go to waste, and at the same time want to achieve a good effect, then the grassroots treatment must be in place, otherwise everything is in vain.

First, the wall has been sanded with sandpaper, then drenched with water, and when it is dry, it is brushed with putty powder.

Then polish and pour water again, dry and then apply latex paint to white, although it is troublesome.

The wall of the old house has not been treated with putty directly, which is obvious, the wall does not shovel off the original old wall skin directly on the new putty, and the dust stain will have yellow on the surface of the partition. In order to be beautiful, as well as to ensure the quality of the wall in the later stage, and to prevent the old bottom from falling off from the new wall, it is recommended to remove the old bottom and then apply putty.

Also, see if there is a product quality problem with the putty and see if the date is expired. Or if you make your own, prepare a white towel; Just put the towel in the mixture to soak it, and then wipe the walls like we do hygiene, and the effect is very good, as white and shiny as just painted.

It may also be caused by the construction being too fast, putty or stucco plaster not completely drying, to prevent it for a period of time, and then re-brush the latex paint when it is completely dry.

In fact, the freshly brushed one turned yellow, maybe the downstairs said that it was dry, and then polished it will turn white! Or maybe the walls of my room are painted yellow.

You can add talcum powder and then do a closure after painting the wall to avoid yellowing.

If the strength of the wall is sufficient, you can do a layer of sealing treatment, and then apply latex paint or scrape a layer of normal putty, so that it will not be yellowed.

It may be because the color of the putty powder is not bought correctly, or it may be because the wall is in disrepair and damp, so this situation will occur, and we must clean the wall before we can scrape the putty again.

You can add some talcum powder to the putty powder and stir it evenly, scrape the putty again, and then polish it again, so as to avoid the yellowing of the old wall scraping putty.

It may be because of the resurgence of moisture, you can add some waterproof materials when scraping putty, so that it will not turn yellow.

Yellowing is a manifestation of the base alkali return, check whether the putty layer has water resistance, will produce the phenomenon of depowdering, the simple operation is to splash a little water on the wall, and then you can.

This is mainly because there is no pre-treatment, and the original wall must be treated once when scraping the wall of the old house to ensure that it does not yellow.

1.The best way to renovate an old house is to first wipe off the surface decorative layers such as putty powder on the wall, and then expose the original cement mortar base, and then renovate the wall. Decorations such as roller brush interface agent, plastering leveling, putty leveling, latex paint or wall covering.

If you wipe it once when decorating the house, brush the interface agent, and the putty is only hung once, without latex paint or wallpaper, after the old putty layer is brushed with the base film, the putty can be re-hung 1-2 times, provided that the old putty layer is not loose, peeling, falling off, hollowing, cracking and other quality problems. But just dirt.

2.In order to ensure the smoothness and beauty of the putty layer, carefully check whether the wall is firm and firm before construction, and whether the wall has cracks, sanding, and uneven inequality. If you have any of the above problems, please deal with them before scraping putty.

When scraping putty, you need to use special tools, and at the same time, you must master the use of tools and apply evenly to ensure that the putty is full after scraping. After scraping the putty, the edges of the putty around should be put away, and the excess putty should be cleaned up, so that the wall can be smoother and more beautiful. Different walls have different construction requirements for foundation treatment.

3.For example, cast-in-place concrete walls often have some pores and bulges, so the wall should first be repaired and leveled, and the bulges should be smoothed and filled with depressions. If it is a precast concrete wall, there will be some gravel and bulges on the surface, so professional construction workers need to brush the entire wall with a wire brush to remove these debris.

After the wall base is treated, there will still be some depressions in the wall, and the depressions need to be filled with gypsum putty. When formulating, pay attention to the weight ratio of gypsum putty, emulsion and cellulose aqueous solution at 100:5:

Around 60. >4.After adjustment, the gypsum putty is compacted in the depression, and the batch material that has been erected is scraped to ensure that the wall is flat. After scraping putty for the first time, check whether the problem with the previous repair position of the wall still exists.

If there is no problem, after the putty is completely dry, polish the entire wall with fine sandpaper, and then clean the wall. However, if these areas of the wall still have depressions, they need to be repaired and leveled again with putty.

In such a situation, you can choose to repaint it again, or you can choose to paste wallpaper, then you can also choose to paste wallpaper, and then you can also choose to paint it with colored environmentally friendly paint, which can achieve a very good renovation effect.

The yellowed wall skin should be scraped off first, and then repainted, or after scraping off the yellowed wall skin, the wallpaper should be pasted, no matter what the final solution is, the yellowed wall needs to be turned off first.

The old putty should be scraped off, the wall should be renovated, the holes and holes in the wall should be filled, and the better material should be selected and the putty should be scraped several times.

Be sure to eradicate all the problematic examples, renovate the walls, and reapply the glue to avoid yellowing.

The solution to the yellowing of the old wall after scraping putty is: use neutral putty or glue to adjust talcum powder (do not add white cement) and then batch two batches, close and polish and paint.

As long as the strength of the wall is enough, a layer of sealing treatment can be done with an interface agent, and a layer of putty or latex paint can be scraped on the surface normally. According to the correct treatment method, first of all, please check whether the putty layer has water resistance, whether there will be a phenomenon of depowdering, the simple operation is to splash a little water on the wall, and rub it with your hands without obvious powder loss.

If there is a serious powder loss, please remove all of them and remove them to the surface layer of cement mortar, and then they need to be treated with interface agent. The wall is sandpapered, watered with water, brushed with putty powder, and then sanded and watered, and then painted with latex paint when it is dry.

The main reasons for yellowing and flowering of the old wall renovation latex paint wall: 1The old wall is alkalized under the action of water-based latex paint water, and salts and other substances precipitate and bleed into the latex paint surface to cause blooming and yellowing.

2.After the old wall is brushed, the water-based latex paint reacts with the original wall and appears yellowing. In short, the yellowing of the old wall renovation is caused by the reaction of water-based latex paint after painting, and the solution is to remove it, scrape the putty layer again, or paint the isolation paint on the original putty layer.

to close and isolate the old wall. At present, some common construction methods on the market cause the yellowing of the latex paint wall, what we must know is: 1

At present, most of the old wall renovation practices in the market are not completely eradicated from the original putty layer, some only remove the latex paint layer, and most of the latex paint layer is not cleaned, so the wall is repaired, and then the water-based latex paint is painted. 2.And our request to the decoration company and the construction in addition to completely eradicating the original latex paint layer and putty layer will also be opposed, because the amount of construction is large, not easy, labor-intensive, and costly.

3.Although not all old walls will have yellowing and yellowing, some of them will, and we don't want to encounter this rare part. In view of the above problems, we recommend the use of Qingquan wall protection agent can fundamentally and completely solve the problem of yellowing of latex paint wall caused by the renovation of old walls, and the cost is low, the construction is simple, does not change the original construction process, does not increase labor costs, is truly effective and thorough!

The main features of Qingquan wall protection agent: 1Closed isolation:

The real realization of the overall closure isolation, rather than the common use of anti-alkali primer film-forming film sealing isolation method on the market, this kind of membrane body in the action of water and alkali moisture is easy to appear incomplete isolation, and the clear spring wall protector can penetrate into the depth of 30mm of the wall, and the base reacts to form crystals to really block the closed wall, so that the salt and alkali and other substances in the old wall can not react and precipitate to the wall at all. 2.Moisture and mildew resistant:

Completely prevent the invasion of moisture, water vapor can not enter the wall, can not participate in the reaction, to ensure that the latex paint film is completely corrosion-free, to ensure that the wall is dry, no mold, no hair, no spots. 3.Efficient waterproofing:

The wall has a lotus leaf-like waterproof effect, dripping into beads, blisters do not absorb water, and the moisture in the latex paint cannot enter and absorb into the wall at all. So as to fundamentally solve a series of problems such as yellowing and yellowing. 4.

Simple construction: It is particularly simple to use, and only needs to be painted on the old wall, which is the lowest cost and the most reliable method to solve the yellowing of latex paint wall.

First, the reason for the yellowing of the old wall scraping putty.

The yellowing of the wall is a manifestation of the alkali return of the base layer, and there are many reasons for this situation, such as living for too long or the poor quality of wall construction, and the long-term exposure of sunlight will also make the wall putty yellow.

Second, what are the treatment methods for the yellowing of wall putty.

1. If the strength of the wall is sufficient, you can use the interface agent to do a layer of sealing treatment, and scrape a layer of putty or paint a layer of latex paint on the surface.

2. If there is a serious powder loss phenomenon in the wall putty, it is necessary to remove the surface layer of the cement mortar that leaks out, and then clean the surface of the interface agent. After sanding, it is enough to apply latex paint.

3. What are the processes of scraping putty on the wall?

1. Grassroots treatment.

Remove the debris and dust of the construction base, if the base is uneven, it also needs to be repaired to ensure that the wall is smooth and clean.

2. Scrape putty.

Before scraping the putty, the binder should be sprayed once, and in the process of scraping the putty, it is necessary to avoid leaving floating putty and scratches, so as to prevent the putty from being stained with dust, etc., to ensure the final construction effect.

3. Grinding and repairing.

After scraping the putty for the first time, wait for the putty to dry completely, and then use fine sandpaper to polish the wall as a whole, and then clean the wall. Scraping putty on the wall usually takes two to three times, and you must wait for the previous putty to dry completely before you can brush the next layer.

In order not to affect the beauty of the wall, many owners will choose to renovate the wall and scrape putty on the old wall, which can make the wall more beautiful. What should I do if the old wall scrapes putty and yellows? What should I pay attention to when scraping putty on the wall?

You can add an appropriate amount of talcum powder to the neutral putty powder or glue, stir their mixture evenly, and then batch two batches, after sealing, polish and polish the mixture on the wall and paint it, so as to solve the problem of yellowing the wall after scraping the putty. If the yellowing of the wall is more serious, it is recommended to remove the original putty on the wall and scrape the putty again.

What should I pay attention to when scraping putty on the wall?

1. In order to ensure the smoothness and beauty of the putty layer, before construction, it is necessary to carefully check whether the wall is solid and firm, and whether the wall is cracked, sanded, uneven and uneven.

2. When scraping putty, you need to use special tools, and at the same time you must master the use of tools, and the strength should be uniform when brushing, so as to ensure that the putty is full after scraping. After the putty is scraped, the surrounding putty should be trimmed, and the extra putty should be cleaned, so that the wall width can be smoother and more beautiful.

3. After the putty is scraped, there is a certain shrinkage, if the putty is too thick in the construction, it is easy to crack the putty layer and take off the limbs in the later stage. Generally speaking, the thickness of putty is between millimeters, which everyone needs to pay attention to. When brushing, do not brush putty back and forth, so as not to have problems such as rolling skin and falling off.

4. If the absorption of the base layer is strong, then when scraping the putty, it is necessary to brush the primer first, which can have a closed effect and ensure the adhesion of the putty.

Choose a scraping putty powder that can combine these two colors, scrape it again on the wall, if it is still yellow after scraping, then glue a layer of wallpaper to the wall, which is not only beautiful, but also can cover this defect.