After scraping the putty on the wall, can it not be sanded?

Generally speaking, three times refers to two full scrapes and one polishing and leveling.

In fact, putty is only a relatively basic leveling of the wall, because it is easy to crack if the batch is scraped, when the wall is found to be very uneven, you can use white latex to mix gypsum powder for wall leveling, of course, gypsum powder should not be scraped too thick, too thick will also crack.

Therefore, whether it is two times of putty or three times of putty, it is necessary to be able to make the wall smooth. After scraping the putty, polish the wall with a 200W bulb. In general, it is enough to polish it rigorously.

Under normal circumstances, no one can be accurate about how long it can be polished.

It depends on the thickness of the putty, if the wall is uneven and the putty is used too much, the drying time will be increased accordingly; There is also depending on the weather, if the weather is sunny and the temperature is high, the putty will also dry faster, if it is in a rainy day, the air humidity is high and the temperature is low, then the putty is not easy to dry at this time; Under normal circumstances, the thickness of the putty is uniform and the weather is good, and the drying time of the putty is about 2 days before it can be polished.

Under normal circumstances, the construction of the first layer of putty is 3 days, and the drying period is about a week; The construction of the second layer is about 2 days, and the drying period is 3 days; The third layer is finely processed for about 2 days, and the drying period is also 2 days, and it can be polished.

The villa master provides you with local building policies, building drawings, and villa design drawings;

Villa appearance renderings service, thousands of popular drawings for you to choose.

Villa Master.

Scrape putty on the wall.

Generally, it takes 3 to 5 days to grind, it depends on the thickness of the putty, in the summer it can be dried in 1 2 days, and in the winter the temperature is low, it takes 4 to 6 days to dry thoroughly, remember not to scrape too thick when scraping the putty, the too thick putty layer is not easy to dry out, after scraping the putty, the window of the room should be opened, so that the room is in a ventilated state, which is conducive to the drying of the putty layer. Relevant popular science knowledge: 1. Scraping putty is a job with a relatively long construction period in the decoration, the general engineering team will report the number of days will be about 15 20 days, the process of scraping putty is very cumbersome, it needs to be painted in multiple layers, and it is constantly polished, and each interval must be more than 3 5 days.

2. Grinding can improve the flatness of the wall, make the surface more uniform, polishing can make the smoothness higher, can solve the problem of defects in the decoration, putty can better cover the cement wall, and can also make the wall smooth through the operation of grinding tools, polishing putty is for the wall, will not be because it is too thin, or too thick, and the pinholes or traces left behind, small defects can be eliminated through grinding work. 3. Grinding the putty layer will make the surface structure of the putty more symmetrical and strengthen the latex paint.

The performance effect can be better combined with the putty layer when applying latex paint, and it is not easy to dry and crack, so that the color of latex paint is more uniform.

The putty is scraped twice and wants to stop, and after a period of time, it is sanded and brushed with latex paint.

Yes, the reason: because of the wall scraping putty.

The key lies in leveling, said to scrape the putty powder several times.

In fact, the number of times in the back should be in the area where the front is not smoothed out. After the putty powder is scraped, it is polished and polished after drying, and the grinding and polishing is to make the wall smooth and clean. Whether it is done or not can be checked.

The inspection method can be viewed with a 200-watt white fabric lamp pressed against the wall to see if it is leveled. Generally, it is necessary to do it two to three times, and it is generally three to five days to dry at a time, and it will be a little longer in rainy days. Scraped putty powder, not prescribed light but to carry out ground leveling.

The putty powder for brushing the wall is generally required to be scraped three times, but each batch of putty is required to be done at the same time and then the next time it is brushed. When batching putty, you must avoid cold wind blowing, so that although it looks like the wall can be dried, in fact, it is to shut the water of the wall in the wall, if you carry out the next operation at this time, until the winter heating, the original wall material will begin to volatilize, the phenomenon of "cracking".

When the bottom layer is fast and strong, it is necessary to carry out a closed primer before brushing the putty powder, so as to prevent the plastic particles in the putty powder from being digested and absorbed by the bottom layer too much, which will endanger the adhesion of the putty powder. Master the slope of the imitation Zen finger tool when brushing, and use it evenly to ensure that the putty powder is rounded. In order to prevent the putty powder from being too large, cracking and falling off, it is not necessary to be too thick for brushing at one time, and the thickness is the most suitable for 0 5 1mm according to the characteristics of different putty powders.

Do not brush back and forth excessively, so as not to roll the skin, fall off and squeeze the plastic particles in the putty powder, and seal the surface layer is not easy to dry out.

According to the characteristics of the coating and the condition of the base layer, select the appropriate putty powder and special tools for brushing, and use the putty preparation knife to make up for the bottom hole and gap, the ring finger.

Clamp the cutter head, press the putty powder into the shortcomings with all your strength, spread and fill it, and scrape the putty powder around it neatly to avoid putty powder marks as much as possible.

When batching putty, do not pollute the road surface, footboard, living balcony, balcony, window door and laminated glass.

and other sub-items that have been completed. The general putty powder batch embedding should first use slaked lime.

After leveling, and then batch general putty powder, although this practice can be cost-effective, but after that, it has buried hidden dangers. The slaked lime in the walls will be carbon dioxide in the air.

reaction to form calcium bicarbonate.

Water absorption and expansion, causing the wall to crack and cause water leakage, seriously endangering the normal life of residents.

Concrete wall maintenance can be directly approved putty, and putty can only be approved after leveling with gypsum powder.

The adhesion of putty powder is not very good, can not be directly attached to the core cement mortar wall, and the concrete wall is relatively rough, direct scraping will lead to the wall plastering layer cracking or ashing, on the contrary, the adhesion of gypsum powder is relatively large, add a certain amount of milky white glue when scraping gypsum powder, the effect is better.

Therefore, in order to ensure the long-term use effect, the base treatment should be done on the surface of the mortar layer first, and then scrape the putty on the wall after drying, so that the treated wall is smooth and flat.

Hello dear, happy to answer your <>

Answer: putty wall Ling Wang with the surface of the grinding so that the putty putty wall renovation can first clean the dust on the wall, with 240 to 320 mesh sandpaper polishing, if there are cracks or hollow drum with putty to fill the foot to dry and polish, after grinding the wall can be re-scraped putty powder more primer, when the primer is dry, and then with 320 to 400 mesh sandpaper and then polish and scrape putty for the second time after the first time to dry a day as well, the first putty powder is generally in a ventilated environment for a day to dry, However, it may take two days for the thicker ones to dry thoroughly, and sometimes the drying time will be extended when the air humidity is high. When the first pass is dry, the putty powder also shrinks and settles, so wait until the first pass is completely dry before scraping the second time.