The second-hand house wall painting steps and notes

Every step of second-hand house decoration has its operation method and construction requirements. In the process of painting walls, every step must be done in order to give the home a bright appearance. Let's take a look at the steps and precautions of painting the wall of the second-hand house with the editor of the decoration network!

What are the steps to paint the wall of the second-hand house

Step one of the second-hand house wall painting: grass-roots treatment

Remove the peeling and loose parts of the wall, and make up with cement mortar. Cracked areas are generally covered with kraft paper tape and white latex. Generally, non-load-bearing walls such as light-weight walls and thermal insulation walls need to be patched. Try to choose wall cloth with better texture and white latex or mesh cloth.

Step two of the second-hand house wall paint: brush interface agent

The interface agent can enhance the adhesion to the base layer, avoiding the phenomenon of hollowing and shelling of the plaster layer, thus replacing the manual chiseling process, saving time and effort. When brushing the interface agent, be sure to brush evenly.

Step three of the second-hand house wall paint: leveling the wall

The uneven wall needs to be leveled. For uneven areas of the wall, use plaster for leveling, so that the error of the wall does not exceed 3 mm. If the yin and yang angles are not straight, you also need to paint the plaster and use a ruler to straighten it.

Step 4 of second-hand house wall paint: batch putty

It is better to use putty with higher particle fineness and harder texture. Putty must be approved three times. The first pass is generally thicker because it involves leveling. The second and third pass should be thinner, mainly to collect light to make the wall look smoother and smoother. After the third pass, the thickness of the putty cannot exceed 3mm, otherwise it will easily crack.

Step 5: Brush the wall paint of the second-hand house: polish

Sanding is a very important step in the painter's steps. After the sanding is completed, the final paint effect will be good. Try to use finer sandpaper, if the sandpaper is too thick, it will leave a deep sand mark. After polishing, be sure to clean the wall thoroughly to avoid too much dust and affect the adhesion of the paint. The difference between unevenness is not more than 3 mm.

The second-hand house wall painting steps and notes

Step 6 of painting wall paint in second-hand house: painting primer

The primer must be brushed evenly to ensure that the wall is brushed everywhere. If the wall has a large amount of paint, it is best to add a little more water to the primer to ensure that it can be evenly applied.

Step 7 of painting wall paint in second-hand house

After polishing, there will be some flaws, which are difficult to see under normal circumstances. It will be obvious only after the paint is applied once. At this time, you need to find a supplement. Pay attention to make sure that it is smooth and smooth, and then use a little more primer to add water to brush it again, so as not to have a color difference when the topcoat is painted because of the different draught from other walls.

Step 8 of painting wall paint in second-hand house: painting top coat

Do not add too much water to the topcoat, it will affect the thickness, feel and hardness of the film. Try to choose a better tool. Mainly pay attention to the corner of the wall, the indirect stubble during each roll and the direction of the paint collection. The top coat is usually applied twice.

Precautions for second-hand house wall paint trial

1. The paint can easily calculate the amount of paint used

In general, the total painting area of â€‹â€‹the room (including the ceiling) = 3.5 Ã— room use area. Then, divide the total painting area by the theoretical painting rate per liter of product to calculate the amount of paint used.

2. Priming is essential to protect the wall and save money

The use of primer is very important, it will make the substrate looseness uniform, can improve the coverage of the topcoat, save the topcoat, the primer is much cheaper than the topcoat, so it will cost less. Secondly, brushing a primer can help the topcoat improve the fullness of the paint film, making people feel full and more textured.

3. The paint dilution should be appropriate

In order to obtain an ideal paint film, the dilution ratio must be controlled well, at most no more than 30%, otherwise the paint film is too thin, it is difficult to ensure product performance and final effect.

Second, pay attention to the problem of temperature and time difference

1. The situation of the original house wall before the second-hand house was painted

(1) The situation where the wall does not need to be removed

If your wall does not have any blistering, skinning, or hollowing, it can be used as a pre-condition without eradication.

(2) The original wall condition

At the same time, what is the original wall of your house? If it is also latex paint, you can not remove it, but if the original is the earliest big white way, you must remove it.

(3) Experiment on the original wall

Whether it is rolling brush or spraying, it has a great influence on the original paint. It is recommended that you use a damp cloth with water to stuff the wall for about two minutes. If the wall is still strong and there is no problem, then congratulations you can directly Re-brushing, if it foams, it is likely to cause the same problem when you spray it. In this case, it is recommended that you apply the layer glue to be better.

Matters needing attention in the construction of second-hand house wall paint

(1) The temperature on the day when the wall was painted

The temperature of the day of painting, if the temperature is above 20 degrees, it is also relatively dry, then it is possible to paint the wall paint twice a day, but pay attention to the interval, generally the interval should be more than 2 hours;

(2) Humidity on the day of wall painting

Humidity in the air, if the humidity is high, or rainy weather, it is recommended not to paint, to prevent the paint film from absorbing moisture and blistering;

(3) The frequency of wall-washing construction

If the humidity is moderate and the temperature is suitable, you can brush it twice a day; but also pay attention to brushing separately from the polyester paint to prevent reaction and cause the latex paint film to turn yellow;

(4) The color of the wall

If there are more than two paint colors in the home, and the roof and wall are not the same color, they should be brushed separately to avoid color confusion and repeated washing of the brush. I believe everyone will have some understanding of the above content, I hope this article can help you.

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No.	Item	Description
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