The issue of the corrosion resistance of Chinese cars has long remained one of the most pressing for Russian car enthusiasts. Even a decade ago, there was a strong opinion that cars from the Middle Kingdom began to “bloom” immediately after leaving the showroom, unable to withstand even one harsh winter with reagents on the roads. However, the industry has made a tremendous leap forward, and today the situation has changed dramatically. Modern factories in China introduce advanced technologies for painting and anti-corrosion treatment, often not inferior to European standards.
Understanding that which Chinese cars are galvanized, is critical for any buyer planning on long-term use of the vehicle. The body is the most expensive element of a car, and its destruction leads to a catastrophic loss of market value. In this article, we will analyze in detail the protection technologies used by leading brands and make an honest rating of models with the best anti-corrosion protection.
It is important to note right away that the term “galvanization” is often used by marketers as a synonym for “anti-corrosion protection”, although the physical processes may differ. Galvanic galvanization, thermal and zinc metal spraying - all these methods give different results. Next, we will look at which manufacturers actually use zinc as a rust barrier, and which rely only on high-quality primers.
Anti-corrosion protection technologies: what is hidden behind the terms
Before moving on to specific models, it is necessary to understand the terminology, since this is where the main confusion lies. Manufacturers often claim “full galvanization,” meaning only partial processing of individual elements. There are three main methods of body protection that are used in the modern automotive industry.
The first and most reliable method is hot galvanizing. In this case, the body or its elements are immersed in a bath of molten zinc at a temperature of about 450 degrees Celsius. The resulting alloy of iron and zinc creates an extremely durable coating that has the property of “self-healing”: when damaged, the zinc continues to protect the steel, oxidizing first. This method is often used by concerns that have common platforms with European brands.
Second method - galvanic galvanization. It occurs in an electrolytic bath, where, under the influence of current, zinc ions are deposited on the surface of the steel. The thickness of this coating is usually less than with the hot method, but it provides excellent surface smoothness, which is important for aesthetics. Third option - zinc metal coating (Zincrometal), where zinc-containing pigments are added directly to the primer or paint. This is the least reliable method, which formally allows us to talk about the presence of zinc, but it provides little real protection against through corrosion during deep chips.
⚠️ Attention: The presence of zinc in paint or primer does not guarantee protection against through corrosion in case of mechanical damage to the metal. Only full zinc coating (electroplating or hot method) works as a protector.
Chinese engineers, collaborating with German and Japanese technologists, are actively implementing the first two methods on their flagship models. However, in the budget segment, a combination of methods is often found: the bottom and sills can be galvanized, and the roof and hood can only be covered with high-quality primer. Therefore, when choosing a car, it is important to know not only the brand, but also the specific platform.
Market leaders: Chery, Geely and Haval
If we talk about which Chinese cars are galvanized completely, then first of all it is worth mentioning the “big three”: Chery, Geely and Haval. These concerns were the first to introduce standards close to European ones, and their factories are equipped with modern cataphoretic immersion equipment.
Company Geely, which owns Volvo, actively uses the technologies of the Swedish brand. Models built on the CMA platform (for example, Geely Monjaro or Xingyue L), undergo a full cycle of anti-corrosion treatment, including galvanic galvanization of the body. This is confirmed by the long-term guarantees against through corrosion that the manufacturer provides for these models - often up to 10-12 years.
Concern Chery also focuses on durability. Flagship models such as Tiggo 8 Pro and Omoda C5, have bodies with a high content of galvanized panels. Hidden cavities are treated especially carefully, into which special wax compounds are pumped under pressure. This allows you to avoid the appearance of “saffron milk caps” from the inside, which was the scourge of old Chinese cars.
Brand Haval, a division of Great Wall, uses advanced painting lines at its Tula plant. Model bodies Haval F7 and Jolion are subjected to multi-stage processing. That Haval often uses the double galvanizing method for the most vulnerable areas: arches, sills and the bottom of the doors.
- 🚗 Geely Monjaro: Full galvanized, Volvo platform.
- 🚙 Chery Tiggo 8 Pro Max: Double-sided galvanization of most panels.
- 🏎️ Haval F7: Enhanced protection of sills and arches with zinc-containing compounds.
- 🚐 Exeed TXL: Premium line with a full cycle of anti-corrosion protection.
List of models with full and partial galvanization
For ease of analysis, we have compiled a table reflecting the current state of affairs on the market. The data is based on the technical documentation of the factories and the results of laboratory studies of the paintwork. It is important to understand that configurations may differ, and in basic versions the manufacturer sometimes saves on the number of galvanized parts.
| Brand | Model | Type of galvanization | Body coverage |
|---|---|---|---|
| Geely | Monjaro / Xingyue L | Galvanic | 100% (Full) |
| Chery | Tiggo 8 Pro | Galvanic + Zinc metal | 85-90% (Partial) |
| Haval | Jolion | Zinc metal spraying | 60-70% (Thresholds, bottom of doors) |
| Exeed | TXL / VX | Galvanic | 100% (Full) |
| Lixiang (Li Auto) | L9 / L7 | Hot galvanizing | 100% (Full) |
As can be seen from the table, premium sub-brands such as Exeed and Lixiang, do not skimp on materials. In their case, either full-fledged galvanizing is used, even hot-dip galvanizing, which puts them on par with German-made business class cars. Mid-range models, e.g. Haval Jolion, are often galvanized only in critical areas exposed to sand and moisture.
It is worth noting separately that the term “partial galvanization” in the table means that only the external panels (doors, roof, hood) are treated with zinc, while the internal reinforcements and frame can only be protected by phosphating and primer. This is standard practice even for many European budget and mid-range brands.
Budget segment: where the risks lie
The situation with budget Chinese cars looks different. If you are considering models costing up to 1.5–2 million rubles, the probability of finding full galvanization there tends to zero. In this segment, manufacturers use cheap and fast protection methods to maintain a competitive price.
Most often used here phosphating metal before painting. This creates a microscopic film that improves paint adhesion, but is not anti-corrosion in the full sense of the word. Soils with the addition of zinc dust are also widely used. Such cars may not rust for a long time under ideal conditions, but the first serious chip to the metal in the Russian winter will become a source of corrosion.
⚠️ Attention: Budget crossovers (for example, early versions of Changan CS35 Plus or some FAW models) often do not have a zinc layer. Their body requires mandatory additional anti-corrosion treatment immediately after purchase.
Models that you should be wary of in terms of corrosion include:
- 🚙 FAW Bestune T77: High-quality assembly, but data on galvanizing is contradictory; there is a high probability of using only zinc-containing primers.
- 🚗 Changan CS35 Plus: In basic configurations, protection is minimal; careful inspection of hidden cavities is required.
- 🚐 Dongfeng (selected models): Some SUVs have a body-on-frame construction, where the frame is often not galvanized at all.
When buying a car in the budget segment, you actually take on the risks of preserving the body. However, this does not mean that the car will rot in a year. Modern epoxy primers and multi-layer paint (often 5-6 layers from the “Chinese”) provide good protection from external influences, if their integrity is not compromised.
Why do manufacturers save on zinc?
Galvanizing is an expensive and environmentally complex process. For a budget model, savings at this stage can reduce the final price by 5-10%, which is critical for competitiveness in the market.
How to check the quality of protection yourself
It is not always possible to look into the technical documentation of a plant. However, there are indirect signs that allow us to judge how well the body of a particular specimen is protected. Before purchasing a new or used Chinese car, it is recommended to conduct a visual and instrumental inspection.
The first thing you need to pay attention to is thickness of paint coating (LPC). Use a thickness gauge. Most modern Chinese cars have a fairly large layer of paint and varnish (120–160 microns on body parts). If the thickness gauge shows values in the region of 60-80 microns on new parts, this may indicate an economical painting technology, where the layer of zinc primer may also be minimal.
The second sign is an inspection of the edges of the doors, hood and trunk lid. On high-quality galvanized bodies, the edges have a smooth, even structure without a hint of roughness or swelling. If you see microscopic bubbles or imperfections on a new car, that's a red flag. Also pay attention to the inside of the gas tank flap: in well-protected cars, a characteristic grayish tint of the zinc layer or very dense soil is often visible there.
☑️ Check the body before purchasing
The third method is to examine the warranty. If a manufacturer offers a 6, 10, or 12 year warranty against perforation corrosion, this almost always means there is zinc in the body structure. A 2-3 year warranty usually indicates that protection is limited only to the paint's resistance to fading and peeling, not to metal rusting.
Is additional anti-corrosion treatment necessary?
Many owners of new Chinese cars are wondering: is it worth spending money on additional “anti-crust” if the car already has protection from the factory? The answer depends on the region of operation and the specific vehicle. For fully galvanized premium segment models (Exeed, Geely Monjaro) additional processing of hidden cavities may be redundant, but processing of the bottom and arches is useful.
The fact is that even a galvanized body is vulnerable in places of welds and technological holes. Aggressive reagents used by utility services in winter can penetrate under the plastic arch linings and accumulate there. If you live in a major metropolitan area where roads are treated with chemicals year-round, or in a coastal region with humid, salty air, a little extra protection won't hurt.
The optimal solution for modern Chinese cars is not to completely “roll” them into bitumen, but to use ML oils (oil anticorrosives) for hidden cavities and thresholds, and application of elastic polymer compounds on the bottom. This will allow the zinc to work without completely blocking the air supply, but will create an additional barrier to mechanical damage from the gravel.
Use only oil-based penetrating compounds to treat hidden cavities. Wax and bitumen compounds can clog vents, leading to condensation and rotting from the inside.
Comparison with competitors: China versus Korea and Europe
For an objective assessment, it is worth comparing the situation with Chinese cars with what competitors offer. Korean brands (Hyundai, Kia) have been using the hot-dip galvanizing method for several years now for most models produced in Russia and other countries. In this regard, the top “Chinese” have already caught up, and sometimes even surpassed the “Koreans” in terms of paint quality, which is often thin among the latter.
European cars are traditionally considered the standard, but there are nuances here too. Budget models of European brands, assembled on different continents, may have different degrees of protection. Chinese manufacturers, focusing on exports, often rely on the “wow effect” and declare super-durability as a key advantage, equipping cars with a thicker layer of varnish and actively using zinc-containing materials even in the middle class.
Japanese cars (Toyota, Mazda) were historically famous for the durability of the body, but in recent years they have switched to more environmentally friendly, but less durable water-soluble paints. In this context, many Chinese models look advantageous, offering a thicker and chemically resistant varnish coating that resists chipping longer.
Modern Chinese premium and middle-class cars are not inferior in the level of anti-corrosion protection of the body, and often surpass mass-produced European and Korean models, especially in the thickness of the paint coating.
FAQ: Frequently asked questions
Is it true that all Chinese cars rust after 3 years?
No, this is an outdated stereotype. Cars that were 10-15 years old actually had problems with corrosion. Modern models (after 2018-2020 production) from major brands (Chery, Geely, Haval) have a guarantee against through corrosion for up to 12 years and show excellent results in tests.
How can you find out for sure whether a particular car is galvanized?
The most reliable way is to request a VIN code and contact an official dealer or brand technical center to decipher the body specification. You can also use a thickness gauge: the presence of a zinc layer often gives specific readings that are different from plain steel, but this requires experience. An indirect sign is a long-term guarantee against through corrosion in the contract.
Is it worth buying a Chinese car without galvanization?
Yes, if the price is attractive and you are ready to monitor the condition of the paintwork. Even without zinc, modern soils and high-quality assembly provide 5-7 years without problems. The main thing is to touch up chips in a timely manner and do preventive treatment every 2-3 years.
What is the difference between "full" and "partial" galvanizing?
Full galvanization means that a zinc coating is applied to all metal parts of the body, including internal reinforcements and side members. Partial (or selective) involves processing only external panels (doors, roof, hood) and the most vulnerable places (sills, arches), while hidden elements are protected only by soil.