How to apply primer? Primer spraying steps

First, the first step to enter the construction site needs to determine the exact location of the construction, and must not mistake the wall and color, especially which line of the wall is used as the dividing line.

Second, the second step is to paste the color separation paper, remember that the color separation paper must be straight and sticky, otherwise there will be curves, or spots, affecting the quality of the project.

3. The third step is to mix the primer with 30 water and mix the new primer with 30 water. Then mix in the required color paste, from light to dark adjustment, be sure not to put too much color paste, a little bit, step by step. Finally, the primer is stirred and folded in half 10 times in two containers before applying.

4. Cover the ground with newspapers or other items.

5. Wet and squeeze the wool roller brush with water. Evenly stained with primer, evenly rolled on the wall, not too much wool roll sticky, don't make all the primer, generally use the material box sticky.

6. Soak the wool brush with water and squeeze it dry. Slip evenly and be careful not to get anywhere outside of the work area.

7. After the first coating, you must wait for the surface of the paint to dry and paint for the second time. so as not to peel the wall.

8. Brush both sides of the light-colored primer and three to four times the dark-colored primer.

9. Serious attention: Do not rub in one place during the painting process, which will cause the wall to peel. It is also necessary to wipe off the roll marks left by the primer during rolling.

10. After the primer surface is completely dry, the wall art paint construction is carried out.

Invasion, spraying, brushing, rollering, electrophoretic coating, scraping, electrostatic spraying, rubbing.

Dip coating, spraying, brushing, roller coating, electrophoretic coating, scraping coating, electrostatic coating, rubbing coating.

Dipping Dipping is the direct immersion of the surface treated coated material in a large amount of liquid paint, using the surface of the coating and the surface of the coated object.

Spraying Spraying is the use of special spraying equipment (mainly spray guns) to atomize the paint and apply it to the surface of the coated object.

Brushing Brushing is a coating method in which paint is applied to the surface of an object with a brush made of animal hair or plant fibers. This kind of painting.

Roller coating Roller coating is a roller made of cotton or chemical fibers, and the paint is evenly applied to the surface of the object through the rolling of the roller.

Primer spraying steps: The spraying steps of the primer are as follows: 1. Sheet metal should be used to repair the damaged steel plate. 2. Spray the first anti-rust primer.

Its main function is to prevent rust for the metal body, have better protection for the steel, and improve the adhesion between the substrate and the paint, which is a very important part of the paint, and the tung is similar to the foundation. 3. Apply a layer of putty on the primer, which is commonly known as putty. But these are painted on the body of metal putty, and his ** is several times that of ordinary putty.

Depending on the season, the maintenance shop will use different putty putty. After the putty is coated, it is polished, and after the grinding is completed, it is necessary to scrape and apply fine scraping putty (red ash, eyefill ash) to fill in the small defects. Grinding is carried out with a special dry mill.

4. Spray the toner indicator and polish it to check for small defects, and then do follow-up spraying. 5. Apply a layer of putty again for polishing. 6. Spray the primer on the middle coat.

The function of the medium paint is to make the adhesion of the topcoat and color paint better, and also play a role in anti-corrosion. It highlights the particles and impurities on the body, which is convenient for grinding and maintenance. 7. Then apply the toner indicator to check the small defects.

8. Primer grinding, that is, painting in Yuchang grinding. In this way, the whole paint surface is smooth and smooth, which is convenient for the next process of talking about the void. 9. Color paint spraying.

This process is usually sprayed three times. The first spraying is fog spraying, and the speed of the gun can be relatively fast, so that the repair area or the whole car is sprayed as thin as a mist, so that the paint can be bonded with the middle coat paint coating film. The second coat of paint is painted in the cover, and the speed of the gun can be slightly faster.

The third coat is to correct the unevenness of the spraying such as the stains generated during the second coating. In general, it is the standard to make the color coverage of the repair area or the whole car uniform. 10. After spraying the color paint, flash drying makes part of the solvent volatilize, and the coating film becomes dry before spraying the first spraying of the mask varnish is mainly sprayed with fog spray, which can not be sprayed too thick, and sprayed to the extent that it can appear glossy, and the running speed of the spray gun can be slightly faster.

11. Coarse wax grinding can effectively remove the oxide layer of the paint surface.

Summary. The pros are as follows; Painting the wall requires an iron red cathode electrophoresis primer. It is suitable for priming metal parts, especially suitable for priming iron and steel products.

Aminoalkyd acid two primers. It is suitable for use on primed and sanded putty layers to fill the sand holes and lines of the putty layer. New type of wood closure primer.

Suitable for wood closure primers, decorative and architectural coatings. New zinc-rich primer.

The pros are as follows; Painting the wall requires an iron red cathode electrophoresis primer. It is suitable for priming metal parts, especially suitable for priming iron and steel products. Aminoalkyd acid two primers.

It is suitable for use on primed and sanded putty layers to fill the sand holes and lines of the putty layer. New type of wood closure primer. Suitable for wood closure primers, decorative and architectural coatings.

New zinc-rich primer.

1. Epoxy grease primer of various colors: suitable for coating light metal surfaces. 2. New metal primer:

It is used as a primer for metal surfaces. 3. Phosphate primer: used for priming essence substrate.

4. Iron red alkyd resin primer: used to coat the surface of steel with a relatively uniform rust layer. 5. New type of wood sealing primer:

Suitable for wood closure primers, decorative and architectural coatings. 6. Zinc yellow polyurethane primer: suitable for the bottom coating of railways, bridges and various metal equipment.

7. New zinc-rich primer: used in underwater metal surface coating and chemical anti-corrosion metal primer in shipyards. 8. Aminoalkyd acid two primers:

For intermediate coatings. It is suitable for use on primed and sanded putty layers to fill the sand holes and lines of the putty layer.

It is good to paint the walls with these primers.

Summary. The four commonly used methods of automobile spraying are introduced as follows:

1. Transverse spraying method. The spraying pattern is straight, the right hand holds the spray gun, starting from the upper left side of the operator, moving the wrench, and proceeding from left to right. When the distance is reached to a junction (the distance is controlled by the individual, generally 800 1000mm is appropriate), quickly go down to the left and round trip.

The joint is generally 4, which can be mastered according to the paint variety. When one area is sprayed, the other side is sprayed sequentially. Depending on the custom, it can also be sprayed from the opposite direction, i.e. from the lower right side of the operator.

2. Longitudinal spraying method. The method is similar to the horizontal spraying method, except that the nozzle pattern is changed to horizontal, and the gun runs back and forth from the upper left or upper right down. It can also be run back and forth from the bottom right or bottom left upwards.

3. Vertical and horizontal crossing method. When spraying, the first time is sprayed longitudinally, and the second time is sprayed horizontally, and the direction of the pattern must be changed each time.

4. Horizontal dual method and vertical dual method. The spraying direction remains unchanged, and after the first spraying, spray according to the original method.

Bottom paint technique.

The four commonly used methods of automobile spraying are introduced as follows: 1. Li Yi transverse spraying method. The spraying pattern is straight, the right hand holds the spray gun, starting from the upper left side of the operator, moving the wrench, and proceeding from left to right.

When the distance is reached to a junction (the distance is controlled by the individual, generally 800 1000mm is appropriate), quickly go down to the left and round trip. The joint is generally 4, which can be mastered according to the paint variety. When one area is sprayed, the other side is sprayed sequentially.

Depending on the custom, it can also be done in the opposite direction, i.e. which coarse stove is sprayed upwards from the lower right side of the operator. 2. Longitudinal spraying method. The method is similar to the horizontal spraying method, except that the nozzle pattern of the spray gun is busy changing the stool cluster to the horizontal direction, and the spray gun runs back and forth from the upper left or upper right down.

It can also be run back and forth from the bottom right or bottom left upwards. 3. Vertical and horizontal crossing method. When spraying, the first time is sprayed longitudinally, and the second time is sprayed horizontally, and the direction of the pattern must be changed each time.

Thank you. It's okay dear, can you like it?

The process of applying the first coat directly to the surface of the substrate to be painted is called priming (commonly known as priming). The resulting primer coating is the basis of the entire coating, and the adhesion to the substrate and the corrosion resistance of the coating are mainly achieved by it.

1 Covering. 2. Dust removal and oil removal.

3. Gun adjustment.

4. Spray primer.

5. Drying, spray gun cleaning and maintenance.