What should I do if there is a problem in paint construction?

During paint construction, some common quality problems will be encountered when the paint mix ratio and the base wall surface are not handled properly.

First of all, let's first systematically understand the coating construction process:

✫Conventional coating construction technology

✫Wall

The wall is required to be flat and dry (with a curing period of more than 10 days), free of dust, grease and asphalt, etc.

✫Putty

After the wall base surface treatment is qualified, use putty batch scraping two times, putty batch scraping requires even and smooth, after drying, polish the com" href="http://">paint online coatingol.
com .

✫ Brush paint

Stir before brushing, and brush evenly, and there should be no leakage and flow.
There are two main types of home improvement painting: white and color, and the specific methods are slightly different.

White latex paint: need one primer and two topcoats.
Apply the primer evenly with a roller, and the primer should not be missed or too thick.
After the primer is dried, the next two top coats can be applied in sequence with the guaranteed interval.
The paint should be applied in the order of up and down, and the corners and other details should not be overpainted or omitted.

Color latex paint: need one primer and three topcoats.
If there are no special requirements, the construction sequence can also follow the construction method of ordinary paint.

✫Joint finishing construction

After the completion of the construction, the bad wall surface should be trimmed in time, and the dividing line should be jointed, and the jointing shall be even and straight to ensure the overall appearance of the wall surface.

✫Clean up the site to avoid polluting the walls.

✫Common common problems and treatment methods of coating construction quality

1.

the reason:

1.

2.
The temperature is low when painting, and the film formation is not good

3.
Too much water seepage after painting

4.
Poor weather resistance

5.
The wall surface is not treated

Approach:

1.
The loose old topcoat, dust and oil on the surface should be removed before painting

2.
The construction temperature should be kept above 5 degrees Celsius

3.
Reduce water seepage

4.
Apply two layers of top coat with good weather resistance

Second, the sagging phenomenon

the reason:

1.

2.
Add too much water when painting

3.
The environmental humidity is too high

4.
The lower paint is not polished, and the adhesion is poor

Approach:

1.
Apply the paint several times, it is not advisable to finish it all at once

2.
Reduce water seepage

3.
Reduce the environmental humidity and avoid construction in weather with excessive environmental humidity

4.
Polish the surface of the coated object

3.

the reason:

1.
The base water content is too large

2.
The basic level is too alkaline

3.
Chemical gas occurs in the construction environment

Solution:

1.
Let the grassroots air dry completely

2.
The cement base layer needs to be cured for a period of time when it is dry

3.
It is strictly forbidden to apply with polyurethane paint at the same time.
If it has been used, lightly sand the wall with sandpaper, and then apply primer and topcoat.

Fourth, preventive measures against common problems of achromatic aberration

1.

2.
Strictly follow the construction requirements to mix the raw materials evenly before construction, and the designated person is responsible for timely handing over the uniformly mixed materials to the spraying personnel;

3.
Smooth the surface of the wall before applying the primer;

4.
Strictly control the construction process, and it is forbidden to spray different colors of paint at the same time.

5.

1.

2.

3.

4.