The main work of putty Construction: base treatment, ceiling joint repair treatment, putty scraping, putty polishing and emulsion paint painting.
1、 Base treatment
The main work of basic treatment is to remove the old putty. Base treatment is very important. No matter how good the materials and workers are, if the base is not treated well, the wall surface with emulsion paint will fall off in a few years.
2. Basic treatment skills
Puttying skills
Sprinkling water
Spray water before puttying, and some putties will be removed automatically after drying.
strength
It is very important to master the force when shoveling putty. Even force is more helpful to remove the putty quickly.
Sandpaper
After most of the putty has been removed, sandpaper can be used to complete the last process.
3. Base treatment method
For base treatment, firstly, water the wall and ceiling of the whole house with a water pipe. After half an hour, part of the putty will fall down. Then, clean the base, and scrape off the parts that are easy to fall off with a scraper. Before the new putty is applied to the wall, the floating surface of the original plastered cement slurry must be cleaned.
Two. Repair seam
1. The second thing for puttying workers to enter the site is to rust the nail cap and other metal objects on the ceiling made by carpenters, so as to prevent the rust of the nail cap and the Yellow putty after puttying. (if the old house is renovated, the putty on the original wall and top must be removed, and there shall be no residue, and then it shall be polished).
2. Then the special anti cracking agent is used to fill the joint slot of the ceiling.
3. Use kraft paper or dacron cloth to paste on the joint with milk white glue to prevent the joint of the ceiling from cracking in the future.
4. The repair work must be fine. If the uneven situation occurs in the early project, it is very unfavorable and unsightly for the later application of emulsion paint and so on. After the basic putty is cleaned, the uneven places on the wall will appear. Use gypsum putty to fill the grooves, and use sandpaper to grind the protruding places to keep the smoothness of the wall.
3、 Puttying
Puttying is usually done three times.
The steel blade scraper used for puttying can be changed according to the actual situation. In the decoration site, the masters match a pipe on the scraper, which is convenient for hanging the wall or ceiling. In addition, pay attention to the way of puttying, the best way is to go back and forth twice, and the two processes should be clean at the same time.
1. The first is the base leveling treatment: especially the leveling of internal and external corners, which is to make the wall corner vertical and square or make the wall surface more flat through thickening putty, so as to create conditions for the later construction.
Negative angle leveling
Leveling of yang angle
2. The second time is full batch: on the basis of the first time basic leveling, the whole wall is completely scratched without any leakage.
3. The third time is surface treatment: the result of surface treatment is that the whole wall must be flat without hollowing or peeling.
Note: the putty surface shall be polished after three times of puttying.
4、 Putty grinding
Grinding is divided into two steps: rough grinding and light grinding. The function of grinding is to make the wall more flat and increase the adhesion of wall latex paint.
1. Although the main function of putty is leveling, after the putty is applied, only half of the leveling work has been done, and the other half, which is also half of the final effect, should be solved by grinding. This is also the main function of wall grinding.
2. In the process of puttying, it is inevitable that there will be some small defects, such as the joint at the joint of putties, traces left by partial scraping too thin or too thick, pinholes caused by water absorption on the wall, etc., which can also be solved by wall grinding.
3. The overall polished putty surface structure is more uniform, which can enhance the performance effect of latex paint, and avoid some problems caused by surface differences (such as local color difference of paint).
5、 Brush emulsion paint
The methods of emulsion paint include roll coating (economical), spraying (more flat surface), printing (improved grade, suitable for small area construction).
Rolling coating method: (generally one bottom and two sides, three times in total)
1. Tools
It is very important to brush latex paint tools. Good paint needs good tools to achieve perfect results.
The first one is that the paint with different luminosity should be brushed with different rollers. The silk paint should be brushed with short pure wool rollers. The roller brush for wall painting is generally eight inches. Some small areas are not easy to operate. You can buy a matching two inch or one inch roller brush, and the paint effect is the same.
The second tray must be used, directly from the paint barrel dip paint, roll brush floating paint, easy to produce sagging.
The third roll painting, the typesetting is also to buy, the seam place can only use the typesetting.
Fourth, the use of trimming sea surface can timely absorb the excess paint to ensure that the paint surface is flat.
2. Craft
The construction effect of emulsion paint shall be: flat and smooth surface, no sagging, no pollution, consistent color, clear and smooth boundary.
(1) The emulsion paint must be mixed well first, and a proper amount of water is needed.
(2) Roll paint on the wall according to the sequence of first primer and then paint (the first coat is dry and then paint the next coat) (if different color emulsion paint is used, separate different color areas with color separation paper in advance)
(3) Brush evenly without missing
(4) The color of the same color shall be consistent without color difference
(5) The joint with wood work must be clean and tidy without pollution.
(6) The boundary line of each color set is clear, and there shall be no pollution.
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