How should car spray putty be scraped?

It is recommended to use the three-pass method.

The purpose of the three-blade method is to reduce the formation of sand holes and save scraping time.

First scraping: Thin scraping under pressure to make putty.

There is adequate filling of small pits.

Second scraping: Scrape a thick layer of soil, fill in the pits, and restore the shape, within the plume edges, slightly below the old paint film.

Third scraping: Scrape a thin layer, slightly higher than the surface of the old paint film.

Hope it helps,!

Scrape putty.

, our first step should be a thin scrape. Then we will touch the direction of our pit, if it is a horizontal pit, we will scrape the vertical pit horizontally, and so on alternately. After about two or three times, we'll basically be able to scrape it flat.

Check the place where the ash is to be hung first, touch it, touch it a little farther away, and find all the places that need to be scraped and repaired. Use sandpaper to grind the place where the ash needs to be hung, grind a little farther, that is, the putty is always in the polished paint surface to fill the deep depression with putty first, there is a trick, the ash knife is a little bit in the flat place where the ash needs to be hung, keep the same horizontal line and scrape downward. To be ash with a gray knife scraping will not rot and then fill the ash, first of all, use your hands to check out those places with deep depressions, and pay attention to fill in a little more when scraping together.

In fact, hanging ash from the plane practice, there are edges and corners, deep depressions first fill in the general shape and then scrape the edges and corners, not deep edges and corners a little ash slowly scrape straight, scrape out the shape. There are various methods that need to be hung with ash, and you can know a lot if you think about it and learn more.

Summary. Dear, I'm glad to answer for you: what should you do before scraping putty:

First of all, the putty is scraped, which is generally carried out after spraying the primer. The process I have been exposed to is to first blast the shot to clean the substrate, and after spraying the primer, you can directly scrape the ash, and there is no longer any need to polish the substrate; If you don't have shot blasting, just use a grinding disc of about 60 mesh to polish and remove rust, it is best to spray primer, if you do not spray primer, you must clean the ash after grinding, and then you can scrape it, but without a primer layer, the general putty adhesion is not good enough!

Dear, I'm glad to answer for you: what should you do before scraping putty: First of all, scraping putty is generally carried out after spraying primer.

I have come into contact with the old process of the stove is to first blast the shot to clean the substrate, after spraying the primer, you can directly scrape the ash, and there is no longer a need to polish the substrate; If you don't have shot blasting, just use a grinding disc of about 60 mesh to polish and remove rust, it is best to spray primer, if you do not spray primer, you must clean the ash after grinding, and then judge that you can scrape it, but without a primer layer, the general putty hidden adhesion is not good enough!

Extended information: In the first step, the angle between the ash knife and the object surface is 45 °-70 ° amplitude, and the ash knife should apply a certain force when scraping, scraping thin, scraping tight, and scraping as much as possible, so as to improve the adhesion of putty and the base bright metal surface, reduce the coating sand hole, and reduce water absorption; In the second step, the angle between the gray knife and the object is 35°-45° amplitude, and the scraping is as thick and flat as possible, and the number of multiple scraping is omitted from the width of the beat, so as to save time and improve efficiency; In the third step, the solution degree between the ash knife and the object surface is about 35°, and the surface of the ash layer is scraped as much as possible to reduce the sand hole. It is worth mentioning that the action should be fast during operation, and it is best to finish coating the putty mixed layer within 3 minutes, if it takes too long, the putty may be cured before it is finished.

Before spraying the halfway primer, it is best to clean the body with a neutral car wash liquid, the meatless blog has tested it in two ways, and the fisheye problem rarely occurs after cleaning the body, and there are many fisheyes without cleaning, so this step is particularly important. I hope this helps, and if you have any questions, you can keep an eye on me and ask me questions.

1. When scraping putty for the first time, the blade should be compacted as hard as possible, because the first scraping of putty is mainly to fill in the larger pits.

2. When scraping putty for the second time, although it is also to fill the pit, there is no need to press vigorously at this time, and it should be stretched as long as possible when scraping, so as to reduce the gap between the putty and the pit.

3. When scraping putty for the third time, it must be to scrape the pores left by the previous scraping, so that the whole surface is in a smooth state. Then when scraping, it is not only necessary to control a certain force, but also to carefully observe the surface and whether there are pores.

1. The scraping and coating skills of putty are very simple, prepare the materials first, and then clean up the place where you want to scrape and paint early, and do not stick stains, especially oil stains.

2. Then the mixed atomic eggplant ash is smeared to the place to be smeared, of course, if there are bubbles, it should be used to tremble with a spatula in time.

3. After the general scraping, you should also pay attention to some small details and make some filling. It is worth noting that when scraping, make sure that there is no dust on your clothes, otherwise it will affect the effect.

Use the car art paper to paste the line, in the addition of atomic chain ash, in the art paper to pull off, in the place where the art paper is pasted to add putty putty, now the article is obvious to talk about Sun a few times on the ant can be.

The purpose of putty scraping is to fill the depression, and the scraping is divided into filling the pit, collecting the light, and clearing the bottom.

The main techniques are, through the change of the angle of the scraper, change the thickness of the putty scraping, through the strength of the scraper, change the thickness of the putty, and through the amount of putty on the scraper, change the thickness of the scraper.

The larger the angle of the scraper, the thinner the scrape, the greater the strength used, the thinner the scrape, the more putty on the scraper, and the thicker the scrape.

When scraping, it is necessary to control the scope of scraping, and the scope of scraping should be equal to the range of feather edge treatment, if the range of the drawing is greater than the range of feathered edge polishing, there will be unevenness.

Area, you change the spatula to a big one, the bigger the better, preferably from start to finish, and you can scrape it all at once.

In the above answers, I emphasize that you should have a steady hand when scraping ash.

I'm going to take a look, I'm just not good at shaving, I still can't see it, just practice a lot, I think it's going to be fine.

First of all, after shaping, treat the surface, clean and dry, try to be thinner each time, scrape it with a putty knife, and level it with No. 400 water sandpaper after drying, so repeat it several times.

Listen to me, it's best to go to the auto repair shop and let the sheet metal master repair it, if the putty is not handled well, it will crack after high temperatures.

Method:1The first is to choose to hang the putty ruler, over and over again, not thick enough, under normal circumstances, use the large ruler to hang the pit ultra-flat, the pit is hung there first, and then the pit is flattened in the whole with a large ruler ultra-flat, the line and other overall ultra-flat, in a separate hanging line, and then the coarse grinding must be used fine again.

2.After grinding, touch carefully, and then sit down in the pit to mark, fill the putty separately in the place marked with a large ruler, and then use a large ruler to ultra-flatten, and then hang the lines separately, this time must be super up and the putty should be thick enough, and then use coarse grinding, because the sandpaper is too fine to polish the plain ash.

3.Don't grind coarsely in place, leave some putty for fine grinding, and the sandpaper used for fine grinding is between 120-240. If there is a condition, you can apply a layer of toner indicator layer after fine grinding, and if there is no condition, you can scrape and apply the eyefill, and the scraping and eyefill ash must be very thin, and then use 320 sandpaper for grinding, this step in order to treat the sandpaper marks to the minimum, I am afraid that the sandpaper marks are too heavy, and when the primer is sprayed, or it will come out in the future.

The metal surface should be thoroughly cleaned of oil, rust, old paint and water.

Putty is used to make new uses of blister molds, not only the raw materials are easy, the cost is low, it can be formed at room temperature and pressure, the mold has good heat resistance, high mechanical strength, not easy to deform, and the process is simple, easy to process, light weight, high mold finish, long life, easy mold modification, short manufacturing time, easy installation, the use of its production of plastic products is easy to demold, compared with the prior art, from the performance and effect is more ideal.

Spray the primer after smoothing and finishing, and then use the red ash to find the trachoma, and you can spray!

Smooth it out without sand holes.