I want to paint the wall of the rough house myself, how to deal with the concave and convex wall, and find out the steps and materials needed! Wait for other decoration steps and materials! thank you

Putty paste+108 glue+gypsum powder for leveling and bottoming.

Be sure to clean up the original wall before scraping putty, preferably with glue to improve the degree of adhesion and ensure that it will not be separated in the future. Be careful that the putty is not too thick! If it is very thick, it must be treated with the underlying material. Let's take a look at the technical disclosure steps of interior wall putty scraping.

First, the construction preparation

1, the wall surface should be basically dry, and the moisture content at the grass-roots level should not be greater than 10%.

2. The plastering operation has been completed, and the through-wall pipes, holes, yin and yang angles, etc. should be handled in advance. In order to ensure that the wall is dry, all kinds of through-wall holes should be plastered in advance.

3. Before large-scale construction, the sample room should be prepared in advance, and the team can be organized to carry out large-scale construction only after the inspection and appraisal by Party A and the supervisor are qualified.

4. The interior wall putty monomer shall be made of the same manufacturer, and shall be prepared at one time as far as possible to avoid color difference after the material is used.

Second, the construction technology

1, process flow: base treatment → indoor corner finding → first putty → ground completion → last putty.

2. First, the plastering layer is dry and firm, the empty drum parts have been repaired, and the residual dust, dirt, foam splashing and mortar flow marks on the plastering layer have been removed and swept away.

3. Scraping the angle of yin and yang: When scraping putty, the angle of yin and yang should be clear and straight. The aluminum alloy bar repeatedly extrudes the external angle; The inner corner is operated with special tools to make it clear and straight.

4, the first time putty thickness control in 4~5mm, mainly used for leveling, parallel to the direction of the wall construction in turn. Requirements can't leave if, closed head must be clean.

5. The second putty thickness should be controlled at 3~4mm, and the second putty should be constructed after the bottom putty is completely dried and polished, and filled with a large board parallel to the short side of the room. At the same time, when the putty is 6 ~ 70% dry, it must be calendered with a rubber scraper to ensure smooth surface, straight lines and uniform color.

Third, the quality requirements

1, the surface of the first pass putty shall be smooth and scratch-free, and the scratch directions of the first pass putty and the second pass putty shall be perpendicular to each other. After the completion of the second putty, the surface layer should be firm, the color is consistent, and there is no color difference. When touched by hand, the surface layer should be smooth and free from powder, peeling and cracking.

2, be bored with child surface to level off, flatness control within 2mm; The angle of Yin and Yang is controlled within 2mm; The angle of Yin and Yang should be straight, and the straightness should be controlled within 3 mm At the same time, the angle of Yin and Yang should not be bent, the width of both ends of the beam should be consistent, and the width of column crib and portal crib should be consistent.

3. The ceiling and wall surface of the putty surface in the same unit building should be consistent in color. All doors and windows, switch panels, lamps and pipes shall be clean and free of burrs, and the ground and other professional related facilities shall not be polluted.

Fourth, finished product protection

1, blow be bored with child, shall not pollute the ground, skirting board, balcony, windowsill, doors and windows and glass and other completed partial projects.

2. Before the putty is wet, the indoor floor should not be cleaned to avoid dust pollution on the wall putty.

3, blow be bored with child should be properly protected after the completion of the metope, shall not knock against pollution of metope.

4. After the putty scraping is completed, the indoor air should be circulated to prevent the surface of putty from being dull or shiny after drying.

Five, the site safety production, civilized construction requirements

1. Scaffolding shall be erected in accordance with regulations for aerial work exceeding 2m. Check whether it is firm before construction. The miter ladder should be landed at the four corners and placed smoothly, and the foot of the ladder should be provided with non-slip rubber pads and safety chains. Scaffolding shall be laid on the herringbone ladder, and the erection length at both ends of scaffolding shall not be less than 20㎝, and two people shall not operate at the same time in the middle of scaffolding. When moving the circuit board, the operator must come down. It is forbidden to stand on stilts on ladders. People are not allowed to stand on the hinge shaft at the top of the herringbone ladder, and scaffolding is not allowed to be laid. The inclined ladder should be checked frequently. If there are cracks, rot, loose wedge head, lack of gear, etc., it shall not be used. Be discovered.

2, the construction site should be no fireworks safety measures.

3, the site designated persons to clean water, can not have dust pollution. Wipe the grinding dust with a wet cloth.

4. It is forbidden to clean the construction equipment indoors with organic solvents.

What do you know about putty? Putty is a decorative curing material for leveling walls, and it is a thick slurry coating. As the basic decoration of family decoration, putty scraping plays a very important role in the basic decoration. So what do you need to pay attention to when decorating and scraping putty?

First, the choice of putty materials

The performance and technical requirements of the materials used in putty are as follows: carboxymethyl cellulose: white floc, which has strong hygroscopicity and is easily soluble in water, and mainly plays a role in improving the viscosity of putty.

Dabai: There are two kinds: lump and powder. Dabai requires pure white color, and the fineness is required to pass the 8O mesh sieve.

Gypsum: White powder of plaster of Paris is used, which is an airtight cementing material. Don't be affected with damp and rain, and it is forbidden to use gypsum that is affected with damp and caked.

Talcum powder: soft, greasy and light.

Polyvinyl acetate emulsion (emulsion for short): This emulsion is used to prevent other materials from settling, prevent putty from falling off and improve the workability of putty.

Second, the matters needing attention of blowing putty

1, when the grass-roots absorption is strong, it should be sealed with primer before blowing putty, so as to avoid the rubber in putty being absorbed too much by the grass-roots and affecting the adhesion of putty.

2. Grasp the inclination of the tool when scraping, and apply force evenly to ensure that the putty is full.

3. In order to avoid the putty from shrinking too much, cracking and falling off, the thickness should not be too thick once. According to the characteristics of different putty, the thickness should be 0.5-1mm.

4, don't draw too much back and forth, so as not to roll the skin, drop the glue or squeeze out the glue in the putty, and the cover is not easy to dry.

5, according to the performance of the coating and the situation at the grass-roots level, choose the appropriate putty and scraping tools. When filling holes and cracks at the grass-roots level with a putty knife, press the blade with your index finger, press the putty into the defect, and fill it up, and scrape the putty around it to minimize the traces of putty.

There are some common sense to understand, such as the process of scraping putty and the reason why putty peels off. If the interval between two times of putty is too short, the first time putty is scraped before it is completely dry, which may cause drying shrinkage and peeling.