Choosing a new car or planning a repainting of the body, most motorists face a dilemma: give preference to the classic "acrylic" enamel or choose a spectacular one. metallic. This type of pavement has dominated roads for decades, and it is no coincidence. Visual depth, play of light and shadow, and the ability to hide small irregularities of the surface make it the undisputed leader of automotive fashion.
However, behind the beautiful appearance hides the complex chemical and physical structure of the paint layer. Metallic It is not just a color, it is a multi-layer system that requires a specific approach to operation and maintenance. Misunderstanding of the principles of aluminum powder in the paint can lead to rapid fading, the appearance of stains and loss of the presentation of the machine.
In this article, we will discuss in detail what is the difference between metallic application technology and monochromatic coatings, how to properly wash and polish such cars to avoid divorces, and what myths surround this popular type of painting. The key difference between metallic is the presence of a layer of base paint with metal particles, which must be covered with a transparent varnish for protection. Without varnish, such a machine will simply crumble under the influence of moisture and ultraviolet in one season.
Composition and structure of paint coating
To properly care for the body, you need to understand what it consists of. Unlike the good old enamels, where the pigment, solvent and resin were mixed in one jar, modern metallic It is a “base + lacquer” system. The base layer contains pigment and the same metal powder, which gives a characteristic shine, but has no gloss and protection.
It is clear varnish (clear coat) takes the brunt of the external environment. It protects aluminum particles from oxidation, and color pigment from burning out under the sun. The thickness of this layer is critical: too thin varnish will be quickly wiped when polished, and too thick can lead to defects like shavern.
There are several types of effects that are achieved by changing the shape and size of the particles:
- 🔹 Classic metallic – medium-sized particles are used to give a smooth, predictable glow.
- 🔹 Nano-metallic – microscopic particles that create the effect of depth and uniform color without pronounced “sparkles”.
- 🔹 Chameleon (color music) is a complex system where color changes depending on the viewing angle due to the multilayer structure of particles.
⚠️ Attention: When locally repairing the body, it is extremely difficult to get into the color of metallic. Even when using the original paint code, the painter must take into account the degree of burnout of the old coating and the direction of spraying, otherwise the stain will be noticeable.
The process of polymerization of lacquer is also different from simple enamel. The final set of strength and evaporation of solvents lacquer layer takes time. Immediately after painting, the machine may look perfect, but the final hardness of the coating is gaining after a few weeks of operation.
Painting technology and common defects
Painting in metallic It is considered one of the most difficult operations in the body shop. Master painter needs not only to properly breed materials, but also to observe the technique of application. Errors at this stage are extremely difficult to correct, often require a complete repainting of the element.
One of the most common defects is the so-called “apples” or spots. They occur if the master unevenly applies the base or uses too much solvent. In light, such spots appear as darker or lighter areas that violate the geometry of color. It is impossible to remove them by polishing, only by repainting.
Another problem is shaven (the effect of orange peel). Although light relief is present on all factory machines, excessive shaft spoils the view. It can occur due to improper pressure in the spray gun, too viscous paint or violation of the temperature regime in the chamber.
Particular attention should be paid to drying. If you hurry and apply varnish to an undried base, after a while bubbles or clouds may appear. The technology requires strict adherence to interlayer exposures, which depend on the air temperature and the type of solvent used.
Why is metal more expensive in painting?
The cost of work is higher due to the complexity of color selection, the need to apply additional layers (base + varnish) and higher requirements for the skill of the painter. Mistakes are expensive.
Proper washing of a car with metal coating
Owners of coated vehicles metallic It is often noticed that after washing in the sun appear small scratches known as "web". This is not a paint defect, but the result of improper use. Aluminum particles under the varnish create a micro-relief that refracts light, making any scuffs more noticeable than on a monochromatic black or white car.
The main enemy of metal is a dirty sponge and automatic brush washes. The brushes drive the abrasive dust deep into the varnish structure. With each subsequent wash, this dust works like sandpaper, leaving circular risks. To minimize damage, follow the rules of contact washing.
The algorithm for a safe wash is as follows:
- 🚿 Pre-rinse with pressurized water to remove the underlying dirt without contact.
- 🧼 Applying active foam and waiting (but not letting it dry!)
- 👐 Washing two buckets: in one pure solution of shampoo, in the other - water for rinsing the mitten.
Use only soft microfiber mittens. After washing, it is better to dry the car with a soft moisture-removing wipe or blow with compressed air to minimize contact with the surface. Remains of water, drying, leave lime plaque, which will also have to be removed mechanically.
Use a wax-containing shampoo or ceramic spray after each wash. This will fill in the micro-scratches and make the "web" less noticeable, as well as make it easier to remove dirt in the future.
Polishing and restoring shine
Sooner or later, even the most careful owner will face the need to polish. For cover metallic This is the main way to get back to the old gloss. The essence of the process is to remove the microscopic layer of lacquer along with the defects, returning the surface to perfect smoothness and transparency.
It is important to distinguish between restorative and supportive polishing. Recovery is carried out with abrasive pastes and requires the removal of the protective layer, so it is often impossible to do it. Supportive (finished) polishing with soft compounds refreshes the look and can be done regularly, for example, once a season.
Before starting work, it is necessary to assess the thickness of the paint coating (LCP) using a thickness gauge. If the layer of lacquer is critically thin (less than 30-40 microns), aggressive polishing can wipe it down to the base, resulting in costly repairs.
| Type of polishing | Tool. | Frequency of application | Risk to LCP |
|---|---|---|---|
| Abrasive (reconstructive) | Polishing machine, hard circles | 1 time 2-3 years | High (removal of layer) |
| Finished (holograms) | Car or hand, soft circles | After the abrasive | Low. |
| Protective (waxy) | Manually or by machine | Every 2-3 washings | Absent. |
After polishing, it is necessary to apply a protective composition. Nude, albeit polished varnish, very quickly loses its appearance without protection. It can be synthetic wax, polymer or ceramic.
Protective coatings: wax, polymer or ceramics?
Protection of the body for owners metallic It is especially acute, as dull, burnt metallic looks worse than simple matte paint. The market offers a lot of solutions, and it is important to choose the right one for your operating mode.
Traditional waxes (Carnauba) give a deep, rich shine, but they do not last long - from 2 to 5 sinks. They are perfect for winter or as a means of express. Synthetic polymers last longer, up to several months, and are better at resisting chemical reagents.
Ceramic coatings (liquid glass, SiO2) create a solid mineral layer on the surface. They not only protect against scratches, but also give a spectacular hydrophobic (water rolls balls). For metallic ceramics is useful because it increases the transparency of the varnish, making the color deeper.
☑️ Choice of protection for cars
Applying any protective composition requires a perfectly clean and low-fat surface. If you apply ceramics to the dirt, you can preserve the defects, and you can remove them only by complete polishing. So preparation is 90% success.
Myths and Reality about Metallic Paint
Around the subject metallic There are many legends that often prevent you from making the right decision. We’ll break down the most popular misconceptions so you can rely on facts, not rumors.
Myth One: Metallic is better at hiding scratches. This is true only for large chips, where a glaring structure plays a role. Small "spiderweb" from washer metallic, on the contrary, emphasizes more than monochromatic light colors. Black metal in this regard is the most ruthless to the owner.
Myth Two: “Paint with metallic effect can not be polished.” That's a dangerous misconception. You can and should polish, the main thing is not to overdo it with an abrasive and not wipe the layer to the base. Modern varnishes are strong enough for several polishes for the service life of the car.
⚠️ Attention: Do not use polishes with abrasive for daily care or frequent washing. Abrasive polishes are intended only for machine polishing in order to remove defects, and not to give shine to a clean machine.
Myth Three: “Metallic rusts faster.” Aluminum powder does not rust by itself. Corrosion occurs only when the LCP is damaged to the metal of the body. High-quality applied and protected metallic has been used for decades without signs of rust.
FAQ: Frequently Asked Questions
Can I paint a car in metallic over ordinary enamel?
Technically, this is possible, but requires a complete cleanup of the old coating or application of insulating soil. Just apply the base over the old glossy paint is impossible - it will not lie flat and eventually rise. Surface training is required.
Why do you see divorces in the sun after washing?
Divorces are the remains of dried detergent or dirty water. On metal, they are more noticeable because of the play of light. To avoid this, never wash your car in direct sunlight and thoroughly flush the chemistry with plenty of water.
How often should you polish a metallic-coated car?
Abrasive polishing is enough to do as defects appear, on average every 2-3 years when stored in a garage. Protective compositions (wax, sprays) are recommended to be updated every 3-5 sinks to preserve hydrophobic properties and shine.
Does the color of the metal affect the cost of insurance?
Yeah, it does. Metallic is considered more expensive to repair because of the complexity of color selection and painting technology (base + varnish). Therefore, the coefficient in calculating the insurance premium may be higher than for ordinary colors.
Metallic is a beautiful but demanding type of coating. Its durability and appearance directly depend on proper washing without brushes and regular protection of the lacquer layer.