Restoring paintwork is always a balance between the desire to save money and the need to get the perfect result. When chipped or scratched on the body, the owner faces the most difficult task: to find an emulsion that will be indistinguishable from the factory. Even a minimal difference in shade can turn a quality repair into a noticeable defect that catches the eye in sunlight.
The modern industry offers a variety of solutions, from ready-made aerosol cans to complex computer coloring systems. However, the ease of buying a can labeled "for Ford Focus" is often deceptive. MetallicsPearl and complex three-layer coatings require an individual approach, since the factory color over the years of operation could undergo changes, and in the enamel party the shades can “walk”.
In this article, we will analyze all the stages of searching for the perfect match. You will learn where to look for codes, why computer matching isn’t always accurate, and how to properly interact with a colorist to avoid repainting the entire item. Understanding the physics of color and process chemistry will help you make the right decision.
Finding the factory code of paint: where to look and how to read
The first and most important step is to identify the factory hue. Car manufacturers do not call colors by simple words like “red” or “blue”, but assign them unique numerical and letter designations. These codes allow the colorist to find the basic formula in their database. However, it is not easy to find this plate, since its location depends on the brand and year of release of the car.
Most often, information stickers or metal labels are located in doorways, under the hood or in the luggage compartment. For example, cars Volkswagen Group The code is often on a sticker in the spare wheel niche or on the body rack. Japanese brands, such as Toyota or MazdaThe color code nameplate is usually located on the central pillar of the body from the driver's side.
⚠️ Attention: Never focus only on the visual similarity of color in the catalog or on the fan. The same color code can have different modifications depending on the year of model release, so checking the VIN code with the official dealer or in specialized databases is mandatory.
A code can consist of different combinations of symbols. Sometimes it’s just three digits, sometimes it’s a complex combination of letters and numbers separated by a slash. It is important not to confuse the paint code with the interior code or the configuration code. If you find a sticker, but are not sure of the decryption, it is better to take a picture of it in its entirety and show it to a professional.
- 🔍 Look for a sticker that says “Color,” “Paint,” “C/TR,” or “Farbe.”
- 📸 Take a clear photo of the nameplate in good lighting to avoid glare.
- 📚 Use online directories by VIN code to double-check the data.
- 🚗 Note that two-color cars will have two separate codes.
Computer-based paint selection: principle of operation and accuracy
After receiving the code, computer selection technology comes into play. This is the process by which a color specialist mixes different pigments and binders according to a digital formula. But the formula is just a starting point. Computer-assisted selection It is not a magical solution that guarantees 100% hit the first time, as factory tolerances can vary.
The process begins with weighing components on high-precision scales. Even a deviation of 0.1 grams can change the hue, especially in light or saturated tones. Modern programs take into account thousands of nuances, including the type of pigment (metallic, acrylic, mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of mother of child of child of child of child of child of mother of child of child of child. But the human factor and the quality of the original components play a crucial role.
The colorist should take into account the age of the car. Over the years of operation, the paint coating burns out under the influence of ultraviolet light, oxidizes and changes its chemical composition. New paint mixed strictly by code, can look brighter or darker than the burnt out body. Therefore, professionals often do a “stretching” or “stretching”, slightly adjusting the formula.
Always require a coloring (a sample on a metal plate) before buying a large volume of paint. Let it dry and compare in different lights.
The cost of such a service is higher than buying finished enamel, but the result is worth it. A good color center always has spectral analysis equipment that helps determine the exact composition of the current coating on the car if the code is lost or unreadable.
Spectral analysis and work with complex colors
When the paint code is lost, and the car was repainted earlier, the help comes. spectrophotometry. This is a high-tech method that allows you to “read” the color of the surface with a special device. The spectrophotometer analyzes the reflection of light from different angles and builds a digital color model, which the program then tries to recreate by selecting a formula.
It is especially difficult to work with three-layer coatings (tricoates), where the base color, layer of mother of pearl and varnish are applied separately. An error in the proportion of pearl pigment can completely change the perception of color: from green it can become turquoise or even grayish. Here without professional equipment and an experienced eye colorist can not do.
Spectral analysis is also indispensable when selecting colors for local repairs, when you need to get into the shade of a neighboring element that already has traces of aging. The device helps to understand the degree of fading and adjust the enamel recipe, adding the necessary micro-pigments.
| Selection method | precision | Cost | Implementation time |
|---|---|---|---|
| Factory code. | Medium (requires adjustment) | Low. | 1-2 hours |
| Computer-assisted selection (manual) | Tall. | Medium | 2-4 hours |
| Spectral analysis | Maximum | Tall. | 30-60 minutes. |
| Finished aerosols | Low (reaching 60-70%) | Low. | Instantly. |
Why can a new color be different from the old even with the same code?
Emulsion manufacturers can change pigment suppliers. In addition, the batches of raw materials have natural fluctuations. That is why the formula by code is just the basis, which often has to be “twisted” manually, adding micro-doses of coloring pastes.
Types of car enamels and their features
Before ordering material, you need to clearly understand what type of coating is applied to your car. This depends on the application technology, the number of layers and the final cost of work. An error in choosing the type of enamel will lead to the fact that the repair composition simply does not lie down correctly or will differ in structure.
The most common type is metallic. Such paints contain aluminum powder, which gives the color depth and overflow. The main difficulty of metallics is the orientation of aluminum flakes when drying. If the technology is broken, the color can become lighter or darker (the “flop” effect).
Pearl coatings contain mica or synthetic crystals that refract light. They are more difficult to apply than conventional metals and require perfectly clean conditions in the paint chamber. Acrylic enamel (non-metallic) is easier to work with, but require mandatory varnishing for protection and shine.
- 💧 Basic enamel (Basecoat): It requires a mandatory coating with varnish, gives color.
- 🛡️ Acrylic enamel (2K): Contains hardener, dries itself, often without varnish (for commercial vehicles).
- ✨ Pearl: It contains mica, gives a deep glow, is difficult to repair.
- 🚛 Grunt enamel: Combined composition for quick repair of chips without complex preparation.
The type of enamel determines not only the appearance, but also the technology of repair. Never apply varnish to materials that are not designed for this purpose, and vice versa.
Factors affecting color matching during repairs
Even a perfectly matched paint can give unpredictable results due to external factors. One of the main enemies of accurate hitting the color is ageing. Ultraviolets break down the chemical bonds of pigments, especially the red and yellow spectra. A red car can turn pink in 5 years, and a white car can turn yellowish.
The technique of application also plays a huge role. Pressure in the spray gun, distance to the surface, the number of passes and the speed of movement of the painter's hand affect how the metal will lie down. Too thick a layer will make the color darker, too thin - lighter and "dryer".
⚠️ Attention: Do not try to dry the freshly painted element with a building hair dryer or in direct sun to speed up the process. This can cause varnish clouding, solvent boiling and a change in the base hue. Follow the temperature conditions specified by the manufacturer of materials.
The environment in the paint chamber – temperature and humidity – also dictate their conditions. At high humidity on the surface can form condensation or matteness, which distorts the perception of color. Professionals always make test colors in the same conditions in which the main painting will be performed.
☑️ Checklist before starting work
Practical tips for coloring and applying
For those who decide to repair themselves or want to monitor the work of the service, there are a number of practical recommendations. The first rule: always buy the material with a stock. Even with a perfect selection, there may be problems with spraying or lack of volume on a large element.
When working with metallics, it is critical to use the right solvent. Too fast solvent will not allow the flakes of aluminum to fit properly, and the color will "float". Too slow can lead to leaks. Choose a solvent depending on the temperature in the room: Slow for the heat, Fast for the cold.
Be sure to use adhesive soils when working with plastic bumper elements. Plastic tends to expand and contract as the temperature changes, and hard paint without an elastic base will simply crack in a few months.
The final polishing should be made no earlier than 24 hours after applying the varnish. Early polishing can leave holograms and matteness, as the polish has not yet gained final hardness. Use abrasives of different gradations, starting with rougher and ending with finishing.
Can I mix paints from different manufacturers?
It's not recommended. Chemical compositions of binders in different brands (for example, Mobihel, Vika, PPG) may differ. Mixing can lead to the paint curling, changing the drying time, or loss of adhesion. Use the products of one system.
How long is the diluted paint stored?
Diluted with a hardener, two-component enamel (acrylic or base with varnish) retains its properties in a closed container from 4 to 24 hours, depending on the type of hardener and temperature. Aerosol cans are stored for years unless the valve is damaged.
Why do paint on a car and on a paint look different?
It's a metameric effect. The color depends on the light source. Color should be compared at different angles and under different lighting (sun, shadow, lamp). Also affects the texture of the surface: smooth coloring and shaft on the body reflect light differently.
Do I need to paint the whole thing or can I make a transition?
For metallics and pearls, painting with “transition” is often used to avoid discordant with neighboring parts. For simple acrylics (non-metallics) usually paint the entire element as a whole, since it is more difficult to make an imperceptible transition on solid colors.