Matters needing attention to be paid to the eradication and repainting of the old wall stucco layer

One: mildew, falling off, hollow places to deal with thoroughly, can not save trouble without doing any grassroots repair, just scrape the putty batch wall, in order to ensure the new coating and the original base of the close bonding, to avoid the painted wall shelling, cracking and other problems.

2. Focus on repairing cracks.

Wall cracks are divided into several kinds according to different causes, and minor cracks can be filled directly with putty powder and glue, but if you encounter more serious wall cracks, you should treat them differently. Due to the original wall settlement, improper treatment of the base layer and other reasons, some serious cracks appeared on some walls. During the refurbishment process, it is necessary to remove the coating, focus on repairing it with a crack sealing corner tape, and then roll the glue, scrape the putty, apply the primer and the top coat.

Three: waterproof and mildew-proof treatment.

The walls around doors and windows are prone to mold because they are often drenched in rainwater, and there are hidden corners such as corners and sofas and air conditioners, which can also cause mold and discoloration over time. When renovating, it's important not only to solve old problems, but also to take precautions to avoid new problems. For moldy and discolored walls, be sure to remove the coating when renovating, do a good job of waterproof and mildew prevention treatment first, and then complete the construction procedure according to the normal steps.

In addition to making a separate waterproof layer, it is best to choose waterproof functions for paints and coatings used in all aspects of construction, especially primers.

Precautions. 1) The putty should be matched with the performance of the coating, solid and firm, and should not be pulverized, peeled and cracked. Use water-resistant putty in wet places such as toilets.

2) The coating solution should be fully stirred, water can be added if the viscosity is too large, and thickener can be added if the viscosity is small.

3) The construction temperature is higher than 10 degrees Celsius. There must not be a lot of dust in the room. It is best to avoid rainy days.

How to remove putty powder from old walls.

If you want to repaint the wall, is it feasible to not shovel the putty of the old wall?

Before the putty removal work, you can use a watering can to spray an appropriate amount of water on the wall, and then wait for about half an hour to soak the putty on the wall, and then remove the putty, it is very easy. If you still can't get rid of it, spray it with some water and wait for a while to remove it. First of all, whether the wall shovel shovels putty or not have to be judged according to the situation of the wall.

If the wall is peeling, chalking, severely cracked, moldy, etc., then the putty must be shoveled. But if the walls are just simply dirty, black, latex paint.

If there are tiny cracks on the surface, or if you have wallpaper, you only need to spray latex paint again after sanding.

The first is that the second-hand house has peeled and fallen off, and a lot of it has to be shoveled. If you don't remove the putty from the old walls, you can't paint the walls. If you force paint it, the new putty may not stay on the wall for long.

If you don't remove the putty wall, spray latex paint or wallpaper directly on it, it will definitely cause cracking in the later stage. After all, the service life is long, and the putty wall made before will be imperfect in many places, so it is better to prevent problems before they occur.

The second type of old wall renovation without shoveling putty is also possible, but the following conditions must be met:1The old walls are not blistered, peeled, or hollow.

2.Old walls can't be white. Generally, latex paint walls can be renovated directly without shoveling. 3.Test old wall coatings. Apply a damp towel to the old wall for about two minutes. If the wall remains the same, it can also be repainted.

Whether to shovel or not depends on the specific situation of the old wall. Because various problems will naturally appear on the old walls of the house, such as unpacking, peeling, etc. At this time, everyone will want to restore it to its previous beauty, such as coating it with diatom mud.

to renovate. The walls facing these problems must be dealt with seriously. If these problems are not dealt with, the protrusions in front of the wall will continue to burst.

If you do diatom mud directly on it, it will directly affect the service life of diatom mud. In general, the service life of diatom mud is about 20 years.

If we want to shovel the putty powder from the old wall, we can buy a small stainless steel shovel. If you don't eradicate the old wall putty, you can't, even if you brush it with new powder, the effect is not good, and it is easy to fall off.

Many people will sprout because the housing prices are too high, or the walls of the house are moldy after living in it for a long timeI want to shovel off the wall and repaint itThe idea of redecorating your new home. So, what do you need to pay attention to when repainting walls? Let's take a look!

One,I want to shovel off the wall and repaint itWhat to look out for:

1. Touched the wall with your hands, and then wet part of the wall with water, and the wet wall skin fell off as soon as you touched it, and decisively said that the quality of the wall was not good and had to be shoveled off and redone.

2. The wall is made of industrial white, which must be removed before decoration, otherwise it is easy to have problems after the latex paint is brushed in the future, and it is recommended to remove them all.

3. If you touch the wall with your hands, there will be white ash left on your hands, when the wall is leveled, there is no glue in the gypsum, resulting in a serious phenomenon of chalking, and the putty and paint are easy to fall off in the future, and the wall in this case also needs to be eradicated and redone. The problem of the wall can not be ignored, and the wall that should be eradicated must be dealt with with with with determination, and do not regret it after moving in.

II,I want to shovel off the wall and repaint itWhat should I pay attention to?

After a long period of use, it is inevitable that all elements will have problems. Moldy walls can easily solve these problems. Moldy walls can give an earthy feel that can seriously affect inner beauty. Making people feel dirty and dirty, this will also affect the health of the family and should be dealt with promptly.

First point: many old houses are now being moved to the bottom of the wall and ending with a plaster work. Dry coating and conjunctiva should be carried out under certain temperature and humidity conditions. Different types of coatings have optimal film-forming conditions.

Point 2: When repainting walls, be sure to scrape off the old walls and leave no residue.

The third point: by choosing the original painting, you can choose lacquer or powder. If the new oil surface is not sticky or the wood may be damaged or the metal will rust, otherwise it will fall off due to poor paint quality.

Fourth, you must scrape off the air bubbles on the wall, scratch the patent leather, and apply microporous paint directly.

Point 5: Mold on walls is usually due to condensation of moisture, often creating brown black spots on glass or metal surfaces. You can treat the moldy area according to the instructions, and after the mold has been killed, clean the surface and repaint.

Summary: The above is about:I want to shovel off the wall and repaint itAttention, I hope to help friends who renovate old houses. When an old house is renovated, it will be as beautiful as a new one, but when it comes to painting, the furniture and appliances must be protected.

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How to renovate the walls of an old house? The answer is to remove the wall powder to refresh the wall, and the wall painting has its own set of processes, and the owner should carry out relevant renovations according to the actual wall condition of the old house.

If the house has undergone a major renovation within 5 years, the first step of removing the wall and painting the wall can give a general treatment of the entire wall, and remove the excess bulges first, such as nails, hangers, decorative paintings, etc. Then sandpaper the wall is sanded flat and then painted.

However, many houses have not been renovated for many years, so most of the old house walls need to be removed from the original walls. At this time, the first step to remove the wall and refresh the wall is to spray the wall with water first, and then use a trowel or planer to remove the paint from the wall. If it is the wall of an old house that has been in disrepair for a long time, the wall surface is badly peeled, and the batch ironing layer is in powder form, so it is necessary to apply the paint layer and the whole batch.

Remove it until you can see the cement batch or brick layer.

Remove the wall flour to refresh the wallStep 2 is to mix the two powders together, double fly powder and cooked rubber powder, and then smooth the bottom of the wall. Smoothing the wall cloth can better paint the primer and top coat to make the whole decoration effect to a higher level.

The third step of shoveling the wall flour and refreshing the wall is to apply the primer, which is very important, because it plays a role in connecting the previous and the next, and the primer can be moisture-proof to protect the topcoat well, and make the topcoat more uniform and beautiful, and more textured.

The fourth step of eradicating the wall and painting the wall is to apply the topcoat, which is the surface of the wall that we will go straight to in the future, so the application of the topcoat must be more delicate and careful, because the topcoat is related to the aesthetics of the overall wall and the decoration style of the whole house.

In fact, applying the topcoat is the last step to remove the wall flour and refresh the wall, but at this time, you should add an extra step, that is, the care after applying the wall. Because the material applied to the wall is different, the drying time is also different, so it is necessary to wipe and clean it according to the time when it is completely firm.

The above is the method of removing wall flour and refreshing the wall, which mainly goes through the following steps: cleaning the old wall, smoothing the wall, applying primer and topcoat, and subsequent cleaning care. During these steps, it is always necessary to maintain the flatness of the wall, and the owner should pay special attention to it.

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When the house has been lived in for more than 20 years, we need to decorate it, otherwise it will be a bit shameful to entertain guests, but we want to know some about the operation process, and it must be carried out strictly in order. So, what are the steps to repaint an old wall?

What about repainting old walls?

1. First of all, clean the base layer of the wall.

2. Brush the surface agent, and the operation must be evenly proportioned, so as to improve the adhesion of the base layer and avoid hollowing and peeling when plastering.

3. If the kitchen and bathroom need to paint the walls, then you need to do an anti-permeation treatment and apply waterproof paint.

4. If there are cracks in the wall, the cracks should be treated before painting the land year, and the cracks can be pasted with kraft paper and mesh cloth.

What about repainting old walls?

5. After the treatment of the wall base layer, when the putty is started, it should be noted that the proportion of the configuration must be carried out in strict accordance with the product manual.

6. After brushing the putty, wipe it with sandpaper. When grinding, you have to start from the back of the four weeks, and be careful with the corners and corners. Don't forget to grind putty somewhere. After grinding, clean the dust.

7. Brush the primer after polishing. The main effect is to improve the fullness, but it should be evenly painted during construction.

8. Finally, brush the surface layer. Once the primer is dry, clean it with sandpaper and then brush the topcoat. The surface layer should be brushed twice. Pay attention to the amount of water when mixing. It shouldn't be too much, otherwise it will affect the hard ants painted for the first time.

What should I pay attention to when repainting old walls?

1. Pay attention to the weather before construction. It is not recommended to paint on rainy days.

2. When painting the wall, pay attention to the method of brushing, the brush must be vertical from top to bottom, and you can also use the parallel method to paint, but be careful not to miss the brush.

3. When you brush the lime slurry, you have to keep stirring, otherwise there will be streaks of different shades.

4. When brushing the wall, there will be dust and other falls, pay attention to the finished product, and do a good job of protection.

5. After brushing your teeth, the putty will become firm, and it will be polished on the wall the next day, and the plain will also be verified.

6. After completing the whole process, it is necessary to verify and verify whether the surface of the wall is flat and the color is uniform.

After a long period of use, problems will inevitably arise with any item. Moldy walls can give a dirty feel and give a dirty and messy feeling, which will not only affect the overall aesthetic but also affect the health of the family, so it should be dealt with promptly. So, what do you need to pay attention to when repainting walls?

What should I pay attention to when repainting walls? The first point: after the plastering link and shoveling to the wall foundation link are completed, the coating drying and conjunctiving link are carried out.

Coating drying, condensation needs to be carried out at a certain temperature and humidity. Different types of coatings have different optimal film-forming conditions. For example, solvent-based paints should be used at a temperature of 5 to 30 ° C, while water-based paints are suitable for a temperature of 10 to 35 ° C.

The second point: when the wall is repainted, the old wall must be scraped off, leaving no residue, if the remaining things are not cleaned up, it will affect the effect of wall repainting.

The third point: when choosing a material, try to choose varnish or powder. If the newly applied oil surface is not sticky, it may cause rot or rust of the metal, or peeling due to poor paint quality.

Point 4: Scrape off the air bubbles on the wall, scrape off the patent leather, and then apply microporous paint.

Point 5: The mold on the wall often produces brown black stains on the glass or metal surface due to dampness. Mouldy parts can be disposed of according to the instructions on the instructions. After the mold has been killed, the surface is cleaned and then repainted.

Points for wall repainting: 1Understand the specific situation of the wall and choose the material for wall repainting according to the situation 2 Wall repainting, no putty powder is required, but the wall still needs to be cleaned thoroughly, otherwise the appearance will be affected; 3.

Choose a paint that fits the walls of an old house and won't peel off due to quality or other reasons. 4.Wall bubbles, can scrape off the paint, directly apply microporous paint.

5.For the walls, do not appear unreasonable painting, otherwise it will cause the wall paint to be too heavy.

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