How to identify lacquer and chemical paint when choosing lacquerware?

Identify the pros and cons of lacquer:

Let’s first talk about how to identify good lacquer. In order to distinguish between “raw” lacquer and “cooked” lacquer, this paragraph will not be refined for the time being. The lacquer is called "raw lacquer". As we all know, the properties of raw lacquer are directly related to its place of origin, such as hue, urushiol content, dryness, viscosity, transparency, etc. Each raw lacquer from different origins has its own use points suitable for processing into refined cooked lacquer.

"Compendium of Materia Medica" records: "When testing the paint, it is found that if the paint is thin, it can be dipped with something. It is fine and continuous, and it is broken and collected quickly. It is also better to apply it on bamboo, and it will dry quickly in the shade. There is a saying in the test method: "The light of a slight fan is like a mirror, the suspended thread is as fast as a hook, it turns into amber when shaken, and it seems to be floating."" Nowadays, the industry has summarized the secret formula for identifying paint: good paint is like oil, which can shine on a beautiful woman's head; shaken like amber, it can be quickly harvested into a fish hook. Specifically, there are several ways to identify raw lacquer:

1. Look

At first glance: good paint looks like lard color, or off-white, so everyone says, The first time I saw raw lacquer, I thought it was lard. Of course, this does not mean that the hue of paint from every place of origin is the same. Raw paint from some places of origin, such as the Maoba wood paint in Enshi, Hubei, is brown like tobacco. In order to solve the problem of single lacquer performance in various producing areas, some lacquer manufacturers in the industry now introduce standard lacquers based on raw lacquers from various places. In this way, in fact, the hues of good lacquers that everyone sees are almost the same. Second look: The paint film formed after the surface of raw paint is oxidized. The paint film of good paint is fine and dense, and has good elasticity when flicked with fingers. Third look: After the lacquer has been left for a few days, it will naturally form three layers: a black surface, a yellow waist, and a white bottom. Insert a wooden strip close to the edge of the barrel, and then quickly lift it out. The clearer the color on the wooden strip, it means laccase enzyme. The better the activity, the higher the quality of the paint. Fourth look: color change. When raw paint comes into contact with air, the surface will oxidize and change color. This discoloration process is called color change, which means slowly changing. During the color change, light yellow--yellow--dark yellow--brown-red--brown-black will appear in sequence. You can infer that adulterated paint is mixed with water, some other chemical raw materials and some oils, and raw lacquer dries faster in such an environment, so it is not difficult to conclude that adulterated paint Paint, the color will change quite quickly. Five things to look at: Drop paint onto rough-edged paper and let it flow naturally. Good paint has a small spreading surface and has a jagged edge. Mixed fake paint contains impurities such as fractions and oil, so there will be oil stains and water stains spreading around the edges. , making the diffusion area transparent.

2. Smell

Smell it and you will find that the raw lacquer has a fragrance. This fragrance is indeed a real fragrance, rather than the fragrance of love house and bird. Of course, the aroma of raw lacquer from different origins is also slightly different, some are sour and some are light. Everyone knows that chemical paint and cashew paint also have a "scent", but after smelling it, it is a dizzying "scent" because they contain chemical raw materials.

3. Picking

This is the silk path used to identify the paint liquid. It is picked up with wooden strips. If it forms a thin and long silk, it flows evenly and is elastic. It rebounds quickly into a hook shape, which is undoubtedly a good quality raw lacquer.

4. Burning

Dip paper into paint. If it is flammable and has no crackling sound, it is a good paint. Please note that both of these should be done at the same time. After all, it is mixed with chemical substances. The paint is also flammable, but the sound when burning is different.

Summary: First look, second smell, third pick, fourth burn.

There are many other ways to identify raw lacquer, but since most grinders will find it troublesome or inconvenient to operate, I will not go into details. For example, there are also the shade drying method, the torment counting method, etc.

Purchasing the lacquer that suits you:

First of all, let me say something to attract or stimulate everyone: It would be great if there were small bottles of lacquer for sale, such as bottom Lacquer, transparent lacquer, red gloss, black gloss, tiang, wipe clear, color paint, etc. . . . . .

Now I can tell you responsibly that there are such manufacturers in Fuzhou and Sichuan, but the raw lacquer factory in Sichuan sells clear paint for 500 per kilogram, which is still The cheapest. It should be noted that this was the price the year before last (2006). If any grinders have used the three-component or two-component transparent lacquer called "urushiol varnish", they should still remember that. The obvious smell of cashew nut paint, the boss of a raw paint factory in Shaanxi told me, is actually chemical paint, no longer real raw paint. The day before yesterday, a friend at the station told me that when I was about to buy colored paint, luckily a MM from Mo Meng happened to have the material supply, because the colored paint in Fuzhou was sold for 600 per kilogram. Isn't it just clear paint or gloss paint plus toner? The toner costs tens of yuan per pound. It's not difficult to calculate. Do you still want it?

Now I can tell you responsibly, no, no manufacturer will sell it to you just for one or two, unless Momeng one day produces all the lacquers in these categories. to solve everyone's problems. In fact, no matter what kind of paint it is, the more scattered it is, the greater the waste will be. If a little bit is stained here and there, the loss will be huge.

Now I can tell you responsibly, yes, how come, do it yourself, come with me and do it yourself, it is actually very simple, too simple. Don't tell me that it's troublesome for you, then I can tell you responsibly that if you find it troublesome, you shouldn't use lacquer. Using lacquer is a hassle in itself.

Let me tell you how to buy lacquer. Just buy good quality standard raw lacquer and black polish. If you think I'm too arrogant or deceptive, you can come back to this post after a while. Anyway, you can leave a comment, and then we'll discuss it more vigorously.

In fact, having said that, raw lacquer can be used directly for lacquer art. Due to the emergence of refined lacquer, more and more people are becoming more and more obsessed with cooked lacquer. Our ancestors have been using it for thousands of years, so that’s all. Of course, then again, the reason why mature lacquer is processed is that it does change the properties of raw lacquer, and the effect is of course better. For example, smooth lacquer must be processed, but these can be prepared by yourself. Let's put it this way, as long as you have standard raw lacquer, you can make almost all refined lacquers, of course, with the exception of tight polishing, which must be made with a suitable origin lacquer to be more effective. However, I will not consider it in this article, because to be honest, there are not many grinders, that is to say, there are very few such enthusiast grinders after all.

Friends who don’t have equipment, such as UV lamps or too lazy to buy big light bulbs, can go directly to the balcony, sit in the shade, and put the paint in the sun, drying it while stirring. That's fine. After all, most grinders just play around or feel the charm of lacquer, so the amount used is not large. For example, you don't even know that it will take you years and years to make a pound of polished paint, but it only takes two or three hours to process a pound of cooked paint yourself. Because it is a high-quality standard raw paint, the moisture content is much less than that of the original paint. Speaking of this, some friends may want to interrupt and talk about how other manufacturers process it, how it takes more than eight hours of mixing and drying, how professional it is, how the master chef has been in the industry all his life, etc. Then I will also say, did you see it? Did you guard it for more than eight hours? Are their operations necessarily so professional and dedicated? Speaking of which, I have to clarify that I am not saying that manufacturers cut corners, but that the one that suits you is the best. Why do you say this? In fact, the "degree" of lacquer is very important. You can control the degree to which it is processed and the heat at any time. If anything is excessive, the extreme will be reversed. As we all know, painters mix their own paint, and they can mix whatever they want. So, why don't we mix it ourselves? It won't be wasteful and it won't be expensive. Especially in this way, we will slowly understand lacquer better. On the other hand, cooked paint is too expensive and can easily fool people.

For example, how many people have tested the water content inside? How many people would argue that the cooked paint produced by this factory is thinner than that produced by that factory? Haha, don’t tell me, I really don’t believe that any manufacturer can control time and temperature to nano-level precision when processing cooked paint. After all, the processing of refined paint is done manually.

For those who are new to raw lacquer or have fun with raw lacquer, of course it is best to learn how to make it yourself. Moreover, if the demand for cooked paint increases in the future, we should mix it ourselves, should we all buy it? After all, the cost is too high, so you have to consider the cost issue.

By the way, let’s talk about a few minor issues: some manufacturers will use primer, topcoat, and so on as soon as they open the door. Now let me remind you that there is a trick in the industry. Those who use primer are fools. Primer is mixed with a lot of water, oil, and impurities. In this case, is there any reason to buy it separately? You must know that what you sell is better than what you buy. If the primer costs 50 per kilogram, the real raw lacquer content will definitely not be as high as that of 100 per kilogram. This is a simple arithmetic problem. For example, some grinders will say that good raw paint is so thick that it is impossible to mix tile ash with putty. For this problem, it is just a little experience. First add water to mix the tile ash, then add raw paint after it is wet. You will find that the original raw paint primer is too smooth. . . . . .

The reason why I put in some black lightening is because it is really troublesome to do it myself, so I just prepare some black lightening.

Finally, it is recommended that when buying lacquer, you should buy at most one kilogram for the first time, and not too much, because there is no spectrum or standard for raw lacquer, and you have to see a real sample before you can buy it. Say yes or no.