Traditional Culture Encyclopedia - Traditional festivals - I do hand painting. Now I see someone painting the TV wall with a spray gun. How to use this thing? Is the color good for transition? Are you studious?

I do hand painting. Now I see someone painting the TV wall with a spray gun. How to use this thing? Is the color good for transition? Are you studious?

Use of spray gun

1. The spraying distance between the nozzle of the spray gun and the surface of the coated object should be 30~60 cm. If it is too close, the coating will be poorly dispersed.

If there is accumulation, the coating will be too thin and too thick due to flying paint, and flying dust may be produced to adhere to the film surface.

2. The moving speed of the spray gun should be 3 ~ 4m/s, and even coating cannot be obtained if it is too fast or too slow.

3. The operation of the spray gun should be perpendicular to the surface of the object to be sprayed, so spraying should rely on arm action rather than wrist action, because arm action is used for spraying.

It can achieve the goal of equality and verticality, and the wrist movement will produce an arc movement with the wrist as the fulcrum, which will make the spraying uneven.

4. The spraying operation sequence is generally from left to right, then from right to left, from top to bottom, and then from bottom to top, and spraying is repeated continuously until it is completed.

Spray the entire sprayed surface. At the same time, when spraying, the spraying surface of the latter stroke should overlap with 1/3~ 1/2 of the coating surface width of the previous stroke.

In order to make the coating uniform and compact, the thickness of each spray is generally one "ten", one and a half "ten" or two "ten"

"Words to control. Generally speaking, a horizontal line, a vertical line and two vertical lines sprayed on the whole spraying surface are all drawn as crosses.

Hand-painted walls are very common equipment.

Comprise an air pump and a spray gun.

Generally, a hand-painted wall can be made with a small air pump.

As for the spray gun, you should choose it according to your own needs.

There are many models. Generally, paragraph 2.3 is enough.

It's not very expensive, more than 500, just so-so.

Spray gun [paint]

The spray gun is a small pen-like device, which can spray high-pressure water-based pigments to obtain layered pictures. The word is also used in digital image processing systems, which refers to functions similar to traditional spray guns. The operator can control the size, pressure and color density of the tool with graphics tablet's electronic pen or mouse.

Related knowledge of propylene pigment

Acrylic pigment is a new painting material discovered in the 20th century. The propylene pigment originally invented is oil soluble, and 1947 appeared in the United States. During World War II, a group of American painters found that propylene has the advantages of light resistance, sun resistance and rain erosion resistance, so they used propylene, a widely used substance in industry, to modulate pigments and draw large murals on street walls. 10 years later, a water-soluble acrylic pigment was invented, which can be painted as thick as oil painting, extremely diluted like watercolor, and keep rich and beautiful colors. It has a wide range of applications and is widely adopted by painters all over the world. With the rise of comprehensive material performance technology, the material characteristics of propylene pigments have been further developed. Experiments show that it has many advantages that other pigments can't match: it is a flexible film after drying, strong and wear-resistant, water-resistant, corrosion-resistant, naturally aging-resistant, colorfast, non-deteriorating, non-reflective, easy to wash after painting, and suitable for painting on shelves, indoor and outdoor murals and so on. It can be stacked layer by layer to draw a heavy feeling; You can also add powder and appropriate amount of water to cover the overlapping parts with gouache-like painting, so that the picture level is rich and clear; If you add a lot of water to the pigment, you can achieve the effect of watercolor and meticulous painting. Through baking and dyeing layer by layer, the effect is pure and transparent.

Propylene pigment is a synthetic polymer pigment, which is made of pigment powder and acrylic latex. Acrylic latex is also called acrylic polymer latex. There are many kinds of propylene resins, such as methacrylic resin, so there are also many kinds of propylene pigments. Foreign pigment manufacturers have produced a series of propylene products, such as matt propylene pigment, semi-matt propylene pigment and glossy propylene pigment, as well as propylene matt oil, varnish and plastic ointment.

There are some pictures on the car with public finished self-adhesive decals, which can be purchased in the related accessories market. Of course, there are also hand-painted, but not many.