How to grind putty, scrape putty and what is easy to sand

Putty scraping method:

1.Preparation materials and tools: putty powder, water, bucket, electric drill, mixing head, scraper, putty knife.

2.First, put an appropriate amount of water in the bucket, generally no more than one-third of the bucket volume.

3.Pour in an appropriate amount of putty powder, install the electric drill on the mixing head, turn on the electricity to stir, and stir until it is paste-like.

4.Before scraping, clean the wall with a broom and putty knife.

5.When scraping, you should first scrape the top and the upper part of the wall, and finally scrape the lower part of the wall.

6.The essentials of scraping putty are: the wrist force should be even, and the scraper should be scraped obliquely, so that the excess putty can be cleaned, and when scraping the wall, try to scrape left and right, not up and down.

7.Note: After the first shave, wait until it is dry before shaving the second time. Fine engineering should be coated and scraped putty many times, each time should not be too thick, generally should be in the following, otherwise it is not easy to dry or shrink and crack.

8.The putty layer should have a long drying time before drying, and then gradually heat up to prevent it from blistering due to too much drying.

Sand rack + sandpaper grinding can be done No. 539, Danxi Road, Jinhua City. Lao Jiang paint accessories. The materials used by his painters are complete, and they are OK.

Using a small piece of wood, wrap sandpaper around the block. In this way, the grinding remains straight.

There are several kinds of putty powder, and the putty raw materials commonly used in Yanchai are mainly "calcium carbonate", calcium oxide and "calcium sulfate". Both are subject to weather conditions. I think you need to use gypsum-based putty, which is an air-hard cementitious material, which is not affected, and can be scraped twice in about 2 hours.

To hail type is to polish it is recommended to use a gypsum-based high-grade wall batch inlay treatment scheme, that is, scrape two knives back to one knife, scrape the delicate point, easy to polish or even no need to polish in the later stage. You only need to use 200 mesh and 400 mesh imported sandpaper to gently polish it and spell the number of joints. Even the grinding dust is not as big as the dust of ordinary putty.

The coarse sand is polished first and then the fine sand is polished, and it is particularly bright.

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Add an appropriate amount of water to putty powder, what kind of coating is putty powder? Putty powder is a kind of building decoration material, and the main components are talcum powder and glue. The surface of the newly purchased blank house is a layer of white - putty, usually the whiteness of the putty is above 90 and the fineness is more than 330.

What are the characteristics of putty powder? Putty is a substrate for repairing and leveling the wall wheel with a tung burn, which lays a good foundation for the next step of decoration (brushing paint and sticking wallpaper). Putty is divided into two types: interior wall and exterior wall, and the exterior wall putty should resist wind and sun, so it has high gelatinity, high strength, and slightly lower environmental protection index.

The comprehensive index of interior wall putty is good, healthy and environmentally friendly, so the interior wall is not used externally, and the exterior wall is not used internally. Usually putty is gypsum or cement-based, so that the surface is rough and it is easier to bond firmly. However, during construction, it is still necessary to apply a layer of interface agent on the base layer to seal the base layer and improve the adhesion of the wall, so that the putty can be better bonded to the base surface.

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It is suggested that a small amount of starch ether can be added to putty powder, which has the effect of anti-sagging and can effectively improve the construction performance of putty powder.

It should be noted that grinding will destroy the surface structure of the outermost layer of putty, causing the material to be bonded into a lump of material to be reduced to powder. After grinding, first of all, there will be a layer of floating powder on the surface, and the powder is a common phenomenon of Zhengyou jujube, even if the floating powder is cleaned, the internal damaged structure will become loose, and it is easier to fall off than before grinding. Generally, putty is not the final surface layer, after cleaning the surface dust, apply the eggplant and remove the primer to seal, do not worry too much.

Overview of wall scraping putty is an important part of ensuring the quality of interior decoration, and now only a brief introduction to the operation steps of scraping putty:

Steps Method Shovel wall skin.

You can do a slight moisturizing experiment to check whether the adhesion of the original coating is qualified, and most of the walls have been inspected in one word: shovel!

The wall is closed with 801 glue once.

The purpose is to enhance the adhesion between the putty and the wall. If you encounter an old house, you can brush the interface agent to increase the insurance factor.

The yin angle is treated with the "elastic line" on both sides (pay attention to the verticality), and the yang angle is treated with a leaning rod.

Use gypsum powder and 801 glue to prepare gypsum putty, and straighten all the gypsum putty. In general, plaster lines are not recommended.

Wall leveling. First, check whether the wall has a "hollow drum" (can be struck, listen to the sound to judge), and then use a slightly longer aluminum alloy ruler to check the top and the depression of the wall, mark it, and flatten it with gypsum putty.

Officially scrape putty.

After the plaster putty is dry, scrape the putty (it must be thoroughly dried each time).

There are two ways to test whether the putty is dry: first, observe whether the color is consistent; The second is to see if there is a phenomenon of "sticking sandpaper" when sanding.

Strong light oblique grinding, the top surface can be 360 sandpaper.

Hello, you need to buy putty powder (it is recommended to scrape water-resistant putty) spatula to scrape putty, 2 meters long by the ruler, scraping putty is actually the fine leveling in the wall decoration steps. When mixing, you need to mix it with water to form a paste and plaster it on the wall with a spatula.

DIY, the idea is good, I made it myself at home, pink, very qualified, haha, It's not very smooth, and there are small dents, hehe, but it's okay, my own is beautiful anyway!

The material can be old, 6 yuan a bag, glue, mix well to scrape! Take your time and don't rush, anyway, you have time, as for your skills, it's definitely not good, it's best to go to the decoration of people to take a look, learn some experience, so you won't feel tired, hehe, after all, the area is not large,

Wall putty or furniture putty?

Main tools: putty scraper, 38 mm and 63 mm wide paint shovel, putty pallet, brown brush, rigid plastic bucket, yin and yang horner.

Construction operation process.

1. Clean the base layer: The concrete or plastered walls, roofs, columns and joints must be carefully cleaned, and there shall be no dust, clay, splashes and oil stains.

2. Pour the blended glue or barreled glue and double fly powder in the ratio of 1:: into the putty mixer and stir well. 3. Rough priming: Use a putty batch knife to scrape the adjusted putty thinly onto the base layer (or base), the practice is to scrape flat without scraping, and the joints should be smooth.

4. Scraping and polishing: the next day after the putty is scraped, use the same ratio of putty to scrape a thin surface that has been scraped, and when the surface of the putty is initially set and in a wet state, the putty batch is repeatedly scraped with sticky water, and there should be no scratches, joints, bubbling, potholes, bottom-penetration, pores, and the surface is smooth and clean.

5. Yin and Yang angle treatment: When scraping the surface putty and polishing, use the Yin and Yang angle device to drag the part back and forth until it is straight, showing a small garden arc angle. Then the pull marks that appear in the drag are scraped with a putty batch knife and repeatedly glued to the water.