Why do you need to polish and trim putty?

This is done to make the wall surface more flat, more detailed and even, and the putty is sanded. Wall polishing is not only related to the final flatness of the wall, but also an important means to solve some minor defects in the wall decoration.

1. Although the main function of putty is leveling, if it is only scraped putty, only half of the leveling work is done, and the other half is also half of the final effect, which should be solved by grinding. This is also the most important function of wall polishing.

2. In the process of putty scraping, it is inevitable that there will be some minor defects, such as the stubble at the junction of putty, the traces left by the local batch scraping that is too thin or too thick, and the pinholes caused by water absorption on the wall, etc., which can also be solved by wall grinding.

3. The surface structure of the putty after overall polishing is more uniform and consistent, which can enhance the performance effect of latex paint, and avoid some problems that may be caused by the difference in surface structure (such as local color difference of color paint, etc.).

Why should the wall of the house be polished, and what is the use of polishing.

Because the surface of the putty is not smooth after scraping, it needs to be sanded. And the putty should not be too thick, so it also needs to be sanded to reduce the thickness. Scraping putty is something that must be done in the process of sheet metal repair, and it can be repainted only after scraping and polishing the putty.

The body of the car is repaired by sheet metal, the metal surface is uneven, if the paint is directly sprayed at this time, it will lead to the adhesion ability of the paint surface to deteriorate, and the effect of the paint surface after spraying the paint is also very poor.

Therefore, it is necessary to scrape the putty for leveling, and the putty can be sprayed only after the putty is sanded.

The thinner the putty, the better, and the putty is too thick to affect the shape of the body, and it will also affect the paint effect.

If the putty is too thick, it is easy to crack after a long period of use.

If the putty cracks, the paint will peel off, which will affect the aesthetics and also cause rust on the surface of the body.

When carrying out sheet metal repair, you must go to a professional repair agency, which will use a good quality putty, which can be used for a long time.

When repairing the paint, you must also go to a professional institution, the quality of the paint used by an unprofessional institution is very poor, and there may be color difference after spraying.

If there is a color difference, it is very affecting the aesthetics of the body.

Because the surface of the putty is not smooth after scraping the Lubi putty, it needs to be polished. And the putty should not be too thick, so it also needs to be sanded to reduce the thickness. Scraping putty is an essential thing for a car in the sheet metal repair process. Scrape putty and polish before re-painting.

After the body sheet metal is repaired, the metal surface is uneven. If the body is painted directly at this time, it will lead to poor adhesion to the paint surface, and the effect of the paint surface after painting is also poor.

Therefore, it is necessary to scrape the putty for leveling, and the putty can be painted only after it is polished.

The thinner the putty, the better. Too thick putty will affect the styling and paint effect of the body.

If the putty is too thick, it is easy to crack after a long time.

If the putty cracks, the paint surface of the body will fall off, affecting the appearance and causing rust on the surface of the body.

When sheet metal repairs, be sure to go to a professional repair organization. Professional maintenance agencies will use *** putty, which can be used for a long time.

When repairing the hail to repaint the surface, you must also go to a professional institution. The quality of the paint used by non-professional institutions is very poor, and there may be color difference after spraying.

If there is a color difference, it will greatly affect the aesthetics of the body.

Millions of car purchase subsidies.

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.