If the wall of the old house is not shoveled, can it be scraped directly with putty?

1.If the wall of the old house is not shoveled, can it be scraped directly with putty?

It depends on the situation: First, the wall foundation is good, there is no glue paint, no blistering, and it can be scraped directly.

Second, on the contrary, it is better to shovel it from scratch.

2.Blank wall, can you scrape putty directly and also use an interface agent.

? This depends on the specific situation of the wall, some developers cut corners and use the cement mark in the mortar when plastering the wall.

If such a wall is best brushed with a layer of base film, so that the mortar that is easy to fall off the wall can be fixed, and then scrape the gypsum powder.

When scraping gypsum powder, an appropriate amount of milky white glue should be added.

The plaster powder should be flattened after completion, and then the putty powder should be scraped.

If the wall mortar falls off seriously, it is necessary to dispose of all the wall and re-plaster the wall, otherwise it is not possible to brush the base film, and it will bulge in 1-2 years, resulting in cracking and falling off the wall skin. The condition of the wall is the key to deciding what to do.

3.Before scraping putty, does the roof wall skin need to be shoveled off?

Carefully check whether the cracks are hollow on both sides, if they are very strong, there is no need to eradicate them, just scratch the opening and fill it with putty. Yes, there is no need to scrape putty. You can completely save the process of scraping putty (provided that the wall surface must be flat and free of hollowing and cracking).

If you scrape putty on the paint, it will definitely not be strong, and even if you paint the wall, it will be too thick (your workers are not honest enough).

Remember, if you must scrape putty for leveling, you must shovel the original putty, otherwise do not shovel putty (a small part of the repair can be), polish the original wall, brush the wall solid, brush the paint.

Answer: The wall of the old house, if you don't shovel it, you can't scrape the putty directly. Because it is easy to scrape the new putty without shoveling off the dust on the old wall, it is easy to fall off the new putty.

It depends on the condition of the wall. If the wall is just dirty, there is no problem with scraping putty directly. If the wall has peeling skin, it should be shoveled.

No, the putty scraped directly in this way is not sticky, and it won't take long to fall off, and then it will be troublesome, so let's shovel off the putty of the old house first.

The walls of the old house must be shoveled off the old wall skin first, and then the putty can be scraped again. Otherwise, the putty on the melon will fall again.

If you want to redecorate the old house, the stucco on the wall should be completely removed, and the direct scraping of putty is equivalent to doing it in vain, and in the end there will still be all kinds of problems.

You don't shovel off the ash on the wall of the old house, and directly apply putty on it, so that it won't crack and fall off after the decoration is completed.

The original wall putty is very durable, and in this case, there is no need to scrape the wall with other methods. You can apply a hard cloth or glue 108 directly to the original wall, scrape the putty twice, and make latex paint or wallpaper.

If you do not remove the putty from the old wall, you cannot paint the wall, and if you force the putty, it may cause the new putty to stay on the wall for a short time. So be sure to eradicate.

It can be painted, but in this case, the wall is easy to scrape and fall off, so it is recommended to remove the example first.

I don't think so. At this time, the wall is not so smooth and tidy, and other things can not be brushed, even if it is brushed, it will not look good, and it will affect the later construction.

Putty is the putty on the old wall, of course, to shovel off, do not shovel off the old putty wall and the new putty can not be combined, will produce the phenomenon of wall skin falling off or bulging, must be shoveled to the bottom of the cement and then use glue and putty to stir, as a base use, wait until the bottom layer is completely dry, and then scrape the putty operation, so that the wall skin will not be peeled when it encounters water.

1. When scraping putty, the wall must be in a dry state, fill the cracks and holes at the bottom layer, and then scrape the putty after filling, so as to prevent the holes from drying and cracking the putty layer, when the first layer is scraped, it should be dried after thorough drying, sandpaper is used for sandpaper, the second layer of stucco is painted, and the putty is generally operated three times to make the wall smooth and smooth.

2. Putty is elastic, the second layer should not be applied before it dries, in case the wall cracks, when the first layer is dry, the second layer is smeared, even if the first layer is dry, there will be a second layer to make up, in the continuous polishing, the subtle cracks will be polished clean, so that the wall is in a smooth state.

3. The ratio of putty to water is that it must be stirred more than three times before it can be used on the wall, and the putty can not be used overnight.