How to adjust car primer? How to adjust car paint?

Like other paints, the color of automotive paint is carried out according to the color of the paint sample or sample, and the general blending method is as follows.

1. First of all, pay attention to the clean environment and fire safety of the color mixing place, and prepare color matching containers, tools and testing instruments, such as clean mixing tools, standard color cards or samples, colorimeters, color meters, etc.

2. Consult the information, determine the main color and color composition of the color mixture by experience or computer measurement, and prepare the materials before the color mixing.

3. According to the most advanced automotive coating varieties and conditions in the market, select the real primary color pigments or color pastes required for the main color coatings and color mixing.

The color paint participating in the color matching, respectively, into the container, first weigh its gross weight, after the color is completed, weigh it again, the difference between the two weighing, you can find the quality of the various color paints participating in the color matching.

5. In the process of color matching, the color paint participating in the color matching should be based on the color of a certain color paint, and a small amount of paint of other colors should be added slowly and intermittently. And constantly stir, take samples at any time, compare the sample, adjust and see, you must be patient to adjust, in order to make the color meet the requirements.

6. When matching the color paint, set aside half of it as a spare, in case it is overmatched, you can add it to it, and then carefully re-mix.

7. If the sample is a dry sample, it is necessary to wait for the paint to dry before comparison. If time does not allow, before it dries, it can be judged empirically whether the paint film after drying is consistent with the original sample. If the sample is wet, then you can mix the sample paint solution thoroughly, drop a drop next to the paint being prepared for comparison, and adjust it until it is registered.

8. After the sample is registered, the number of color paints that should be matched is preliminarily obtained, and then the large sample is matched according to the proportion of various color paints participating in the paint, and the method is the same as above.

9. When matching color paint, it should be on a sunny day or under a standard light source, do not continue to observe the color, and let the eyes rest for a while before adjusting. When comparing base paints, it is necessary to thoroughly stir the paint up and down each time, and then take samples for comparison, so as to reduce errors.

10. When matching color paint, the base material of the color paint used must be the same, otherwise it will cause resin precipitation, floating, precipitation, and even scrapping.

Generally, there is only one gray color for car primers, which can be used by diluting them proportionally with special thinners, and there is no need to adjust the color or anything.

It is not difficult to adjust car paint, remember the car paint and color mixing formula, and check the car paint color matching table.

1. Red and yellow turn to orange - less yellow and more red to dark orange - less red and more yellow to light yellow;

2. Red plus blue turns purple - less blue, more red turns purple, and then more red turns into rose red;

3. Yellow plus blue turns green - less yellow and more blue becomes dark blue - less blue and more yellow turns into light green;

4. Red plus yellow and less blue turn brown - red plus yellow and blue turn gray and black (a variety of different shades of color can be adjusted according to the amount of weight);

5. Red plus blue turns purple and then white turns light purple.

6. Yellow plus less red becomes dark yellow and white becomes earthy yellow - yellow and less red becomes dark yellow - yellow and blue become green and white becomes milk green.

7. Red plus yellow plus less blue and white to light brown - red plus yellow and blue to gray, black and more white to light gray.

8. Yellow plus blue turns green and blue turns blue-green.

9. Red plus blue turns purple, then red and white turn pink, purple and red (rose).

10. Less red and white turn pink.

There are two kinds of paint mixing: computer paint mixing and manual paint mixing.

1. Computer paint mixing, that is, first find the same code name or color as the paint on the car in the computer paint mixing system or paint mixing color card, and the computer will appear the composition of the paint, and then use the electronic scale to weigh it out in proportion.

2. To mix paint by hand, it is necessary for the paint mixer to carefully analyze the composition of the paint. After adjusting the approximation, observe it from different angles to see if the color is consistent, and add what color is still missing. Because there are too many masterbatches, it takes a lot of experience, such as the paint difference red that is adjusted, but there are many kinds of red, and what kind of red to add depends on your own experience.

Paint mixing ratio: plain paint ratio: paint: curing agent: thinner 2:1: add as appropriate).

Metallic Paint Ratio: Lacquer: Thinner 1:1 Non-reinforcing agent, can be sprayed with oil.

Pearl Paint Ratio: Lacquer: Thinner 1:1 No reinforcing agent, can spray oil.

Varnish (bright oil) ratio: Varnish: curing agent: thinner 2:1: add as appropriate) must be sprayed twice, the first time is sprayed, the pressure gun is 1 2, and the second time the pressure gun is 3 4 (white, ** do not have to be compacted).

Matte paint ratio: matt paint: hardener: thinner 1: :1

Primer ratio: Primer: Thinner 1:1

Plastic primer ratio: spray directly without adding any substance.

Extended Information:Composition of Paint:

Automotive paints generally have four basic components: film-forming substances (resins), pigments (including physique pigments), solvents, and additives.

1. The film-forming substance is the main component of the paint, and its function is to keep the pigment in a bright state, make it strong and durable and can adhere to the surface of the object, which is the substance that determines the type of paint.

Generally, it is made of natural resins (such as rosin), artificial resins (such as dehydrated malic acid resin), synthetic resins (such as methyl methacrylate, polyurethane, polystyrene, polyvinyl chloride, etc.) modified from dry oil or semi-dry oil.

Plasticizers and catalysts are often added to adjust and improve its durability, adhesion, corrosion resistance, abrasion resistance and toughness.

2. Pigment is one of the two non-volatile substances in paint, which gives the topcoat color and durability, and at the same time makes the paint have hiding power, and improves strength and adhesion, changes gloss, improves fluidity and coating performance.

3. Solvent is a volatile component in paint, and its main function is to fully dissolve the resin in the paint film, so that the paint can be applied normally. High-quality solvents improve the spreadability and film properties of the topcoat, enhance gloss and reduce paint reticulation, thus reducing the amount of polishing required, while also facilitating more precise color matching.

In addition to the solvent already present in the paint, it is also used as a thinner to dilute the paint so that its viscosity is suitable for the coating requirements.

4. AdditivesIn the past ten years, the paint process has undergone tremendous changes, and the use of additives has become more and more common. Although additives do not account for more than 5% of paints, they play a variety of important roles.

There are curing agents that speed up drying and enhance gloss, retarders that slow down drying, and matting agents that reduce gloss, and some additives play a combined role: reducing wrinkles, speeding up drying, preventing whitting, and improving chemical resistance.

Summary. Hello, the primer is divided into two types of 1k and metallic paint, just use thinner to dilute can be sprayed, and it dries quickly, but 1k metal primer needs to be sprayed with varnish on the surface, varnish is also known as varnish. 2K is called plain paint, this paint is similar to varnish, it must be reinforcing agent to dry, and the ratio of 1K primer to thinner is 1:

1 or so. The ratio of 2K paint to hardener and thinner is 2:1.

The ratio of varnish to hardener is close to 2k. Second, the ratio of paint, curing agent and thinner is: 1:

1：！There is no dead definition of this! Third, the general polyester paint ratio is 1::

Target. The paint is 1. The curing agent is:

How to mix car primer.

Hello, the primer is divided into two types of 1k and metallic paint, just use thinner to dilute can be sprayed, and it dries quickly, but 1k metal primer needs to be sprayed with varnish on the surface, varnish is also known as varnish. 2K is called plain paint, this paint is similar to varnish, it must be reinforcing agent to dry, and the ratio of 1K primer to thinner is about 1:1.

The ratio of 2K paint to hardener and thinner is 2:1. The ratio of varnish to hardener is close to 2k.

Second, the ratio of paint, curing agent and thinner is: 1:1:!

There is no dead definition of this! Third, the general polyester paint ratio is 1::Target.

The paint is 1. The curing agent is: Thinner is.

What about the proportion of imported primers?

The same is true for imported lacquer.

varnish ratio.

Theoretically, there is a description of car paint, generally solid color paint, varnish and reinforcing agent, the proportion is to, and metal paint does not need a curing agent, but it still needs to be diluted.

Car paints are generally baked paints. In the depot, after the frame and body are welded (and sometimes repaired by hand), the next process is painting. In general, the first is the primer.

Dip the bare car shell into a syrup-like paint tank and remove the drying primer; Then send it to the dust-free workshop and spray the paint with the electrostatic spraying process. It is then dried at a temperature of around 200 degrees. If you are elegant, you will apply another layer of varnish.

In this way, the painting process is complete. There are several types of general topcoats: ordinary paint; metallic paints; Pearlescent lacquer.

Needless to say, ordinary lacquer, resins, pigments and additives. Metallic paint has more aluminum powder; So it looks bright when it's done. The pearlescent lacquer is added with mica grain.

Mica is a very thin piece of things, so the reflection is directional, and it has a colorful effect. If it is metallic paint with a varnish layer, the paint of the car will look very bright and beautiful. In terms of color, white is undoubtedly the cheapest.

For example, world-class brand red pigment is about 25 times more expensive than world-class brand titanium dioxide; The amount of titanium dioxide in white paint is about 5 times that of red pigment. As a result, red paint costs up to 5 times more for color than white paint. That's why there are so few varieties of colors in some domestic cars:

Simple and low at the same time.

No matter what color paint is, its pigment will fade in the sun. In fact, not only paint, but anything with color can fade in the sun. At this time, the additives added to the paint are very important.

For example, light stabilizers, such as antioxidants, etc. Unfortunately, good additives are expensive and expensive. Many times, the quality of the additives determines how the paint feels.

One would surely think that some kind of paint that starts to fade significantly after 2 years is worse than a paint that is shiny as new after 5 years. But in reality, there is no paint that does not fade. In many cases, the factory is more concerned about:

Fade evenly. Try not to make color differences in different parts of the car.

There are two types of automobile paint mixing methods: computer paint mixing and manual painting mixing. There must be natural light in the place where the paint is mixed, and when mixing colors and distinguishing colors, natural light must be directed to the swatches and the physical objects, that is, the human body stands with its back to the light, and the light can be directed to the swatches to distinguish the colors with the hand-held swatches, and the most accurate and ideal light should be from 9 am to 4 pm.

1. Computer color grading. Computer paint mixing is to first find the same code or color as the paint on the car in the computer paint mixing system or paint mixing color card, the computer will appear the composition of the paint, and the paint manufacturer will produce the base paint with a fixed pigment ratio, and then use computer control measurement, the concentration and tinting strength of the stable special color paste into the base paint, and then use the mixer to fully mix the base paint and the color paste.

2. Hand color matching. According to the interrelationship between colors, first determine which hues are composed of the color of the paint to be blended, which is the main color and which is the secondary color. When blending, attention should be paid to adding the main color first, and then adding the secondary color.

If you need to mix a large number of colors, you can try to match the sample first, determine the combination ratio of various colors, and then formally mix. When adding a secondary color to the primary color, it must be added patiently and slowly, stirring constantly, and sampling at any time until the desired color is achieved.

Photo by Zhang Guiye) 2019

The trick is that it can be adjusted according to the color of the body itself, and it can be matched according to the configuration, so that the background color of the car can be better deployed, which will make the color of the car look more natural, and it can also be adjusted according to the color palette, and it can also be adjusted according to the vehicle accessories.

Adjust the deployment of the car primer, control the color difference of the car, pretreat the surface of the treated plate, carry out the corresponding degreasing and dust blowing, and the hand strength should be large when spraying, the hand should be stable, the spraying speed should be uniform, and the spraying should be comprehensive.

It needs to be pretreated, cleaned, and dusted before it can be operated, so that the color can be better blended, and the color contrast should be paid attention to.