* Construction method of wall coating for export channels

1. Preparation: paste color separation paper to protect the joints of doors, window frames, furniture and paints.

Finished wooden cabinets, partitions and other furniture should be sealed with newspapers to avoid paint dripping and getting dirty.

2. Grass-roots treatment: clean up the peeling and looseness of the wall surface and repair it with cement mortar.

Where there are cracks, kraft paper tape and white glue are generally used to stick the cracks.

Non-load-bearing walls such as lightweight walls and thermal insulation walls generally need to be pasted. Try to choose wall covering or white glue or grid cloth with better texture, and the anti-cracking effect of grid cloth will be better.

3. Brush the interface agent: the interface agent can enhance the adhesion to the base and avoid the phenomenon of hollowing and shelling of the plastering layer, thus replacing the manual roughening treatment, saving time and effort.

When brushing the interface agent, it must be evenly brushed.

4. Wall leveling: The uneven wall needs leveling, and the uneven wall should be leveled with plastering gypsum, so that the wall error is less than 3 mm..

If the angle of yin and yang is not straight, plaster is needed and it should be scraped straight with a ruler.

5. Batch scraping putty: putty with high particle fineness and hard texture should be selected, and the putty should be approved for three times.

The first pass is generally thicker because it involves leveling.

The second and third passes are relatively thin, mainly for lighting and making the wall look smoother and flatter.

After three batches, the thickness of putty should not exceed 3mm, otherwise it is easy to crack.

6. Polishing: Polishing is a key step in the painter's step. After polishing, the final painting effect can be very good.

Try to use thinner sandpaper. If the sandpaper is too thick, it will leave deep sand marks.

The polished wall must be thoroughly cleaned to avoid too much dust and affect the adhesion of paint.

The concave-convex difference shall not exceed 3mm. Putty will have some defects after polishing, which is difficult to see under normal circumstances. It will be obvious after painting, and then it needs to be repaired.

Pay attention to polishing and leveling before brushing the primer with a little more water, so as to avoid the color difference when brushing the top coat because of the different water consumption from other walls.

8. Paint: Do not add too much water, which will affect the thickness, feel and hardness of the paint film.

Try to choose better tools.

Brush painting mainly pays attention to the corners, the indirect stubble part in each roll and the direction of paint collection.

Generally, the top coat can be brushed twice.