The remains of the varnish, caught on the body in the form of dust or shaking, immediately after drying, make the surface matte and rough. It is to eliminate these defects and restore gloss that the finishing treatment of painted elements is carried out. If you ignore this stage, the new paint will not look as bright as the factory coating, and the transitions between the repaired area and the rest of the body will be noticeable to the naked eye.
The process of polishing after painting is a mandatory procedure in professional body repair, since even in the conditions of an ideal paint chamber, microscopic dust settles on the surface. In addition, the paintwork (varnish) when applied forms a characteristic texture known as “shagrin”, which, without machining, remains visible. Removing these imperfections requires the use of abrasive pastes and special polishing machines, which allows you to level the layer of varnish to the ideal state.
It is important to understand that polishing This is not just a gloss pointing, but a technological stage that affects the durability of the coating. Unevenly polished lacquer can eventually become cloudy or lose its protective properties, especially if the paint was made errors in drying. Therefore, the answer to the question of whether the car is polished after painting is unambiguous: yes, it is necessary to achieve a high-quality visual result.
Why you need to polish fresh paint coating
The main purpose of polishing a freshly painted car is to eliminate the so-called “orange peel” or shavern. This effect occurs due to the fact that the liquid varnish, lying on the surface, does not spread into a perfectly smooth mirror, but freezes with small irregularities. Abrasive polishing It allows you to remove the microscopic top layer of lacquer, leveling these irregularities and making the surface optically transparent.
In addition to visual alignment, polishing performs the cleaning function. Even in specialized chambers, it is impossible to achieve absolute sterility, and the smallest villi, dust or insects can stick to the drying varnish. Deep polishing allows you to carefully remove these foreign inclusions without damaging the main layer of paint, which is impossible to do by other methods without repainting the element.
It is also worth noting that polishing helps to hide the boundaries of color transition during local repairs. By extinguishing the edges of the repair zone, the master makes the border between the old and new paint invisible. Without this stage, the repair site will stand out against the general background, giving the fact of bodywork.
Use only specialized pastes for fresh varnish, as conventional formulations can be too aggressive and damage the not completely polymerized coating.
The impact of painting quality on the need for polishing
The need and intensity of polishing directly depend on the quality of the paintwork. If the painting was done professionally with all technologies, the layer of varnish lies flat, and only light finishing is required to remove dust. In cases where application technology is broken or poor-quality materials are used, the shaft may be so strong that serious intervention is required.
There is a direct relationship between the thickness of the applied varnish and the possibilities of polishing. The thicker the layer, the greater the supply of material for removal with abrasive. However, if the varnish is applied little, deep polishing can lead to rubbing the coating to paint or even soil, which will require a complete repainting of the element. Therefore, before the start of work, measurements of the layer thickness are often carried out.
⚠️ Warning: Excessive diligence in polishing a thin layer of varnish can lead to irreversible damage. Always evaluate the residual thickness of the LCP before aggressive treatment.
The quality of the varnish used also plays a role. Cheap varnishes can have worse spreadability, forming a rougher shaver that is harder to remove. Expensive two-component varnishes with high dry residue (HS-lacquer) are usually laid more flat, but still require finishing to obtain the effect of "wet glass".
Stages of polishing after painting
The process of bringing fresh varnish to its ideal state consists of several consecutive stages. The first step is always washing and degreasing the surface to prevent dirt from getting under the polishing circle. Then follows the main stage - abrasive polishing, followed by finishing treatment to give gloss.
☑️ Checklist for polishing preparation
At the abrasive processing stage, a hard circle and a paste with a large grain are used. This allows you to cut the top defective layer of varnish and level the shaver. Movements of the machine should be uniform, without strong pressure, so as not to overheat the surface. Overheating can lead to boiling of the varnish and the appearance of new defects.
After removing the main shavern surface is wiped and move to the finish polishing. Here soft circles and fine abrasive or abrasive compositions are used. This stage removes the risks (holograms) left by the rough abrasive and gives the surface a deep shine. Completes the process of applying a protective composition that seals the pores and protects fresh varnish.
| Work phase | Type of pasta | Rigour of the circle | Purpose |
|---|---|---|---|
| Primary processing | Large-abrasive | Tough (Orange/White) | Shaking and dust removal |
| Average processing | Medium-abrasive | Medium-severity | Eliminating risks from the first stage |
| Finishing polish | Fine abrasive | Soft (Black/Blue) | Giving gloss and depth |
| Protection | Wax or pottery | Soft microfiber | Protection and hydrophobic effect |
Tools and materials for polishing
For high-quality polishing of the car after painting, it is not enough just to buy a paste. A specialized tool is required that ensures a stable rotational speed and no vibrations. Professional polisher They are divided into rotary and orbital (DA). For beginners and finishing work, orbital ones are more often recommended, since they are safer and do not leave holograms.
The choice of pasta depends on the hardness of the varnish. For soft varnishes, which are often found on Japanese-made cars or when using certain budget materials, less aggressive compositions are suitable. Hard varnishes, characteristic of European brands, require more active abrasives. Incorrect selection of chemistry can lead to the fact that the defect will not be cleaned or, conversely, the surface will be spoiled.
Pollination circles play an important role. They come from a foam of different density and from microfiber. The porous structure of the circle affects heat removal and paste distribution. The use of dirty or worn circles is unacceptable, as they can leave deep scratches on fresh varnish. Always have a stock of clean laps for different stages of work.
When you can do without polishing
There are rare situations where polishing after painting may not be necessary or minimal. This is possible when using special varnishes with the effect of self-leveling, although even they in 99% of cases require at least easy fine-tuning. Also, polishing may not be done if the hidden body element or the interior of the door is painted, where the appearance does not matter.
Sometimes car owners refuse polishing immediately after painting in favor of waiting for full polymerization of the varnish. Fresh lacquer is softer than completely dried and easier to damage. However, waiting a few weeks before the start of operation of the machine is not always convenient, so light polishing is still recommended for surface protection.
If the painting was done with aerosol spray in garage conditions, deep polishing can be dangerous. A thin layer of paint from the can is easy to wipe to metal. In such cases, they are limited to applying liquid wax or generally refrain from mechanical action, waiting for the varnish to “stay”.
⚠️ Please note: Do not try to polish your car if less than 24 hours have passed since the painting. The polish must gain primary strength, otherwise it will simply smear and clog the abrasive.
Common mistakes in self-polishing
Self-polishing often leads to the appearance of new defects that are more difficult to eliminate than the original shaking. One of the main mistakes is to use too much speed of rotation of the machine or strong pressure. This leads to local overheating of the varnish, its clouding or even swelling. The lacquer should be removed evenly and carefully.
Another common mistake is poor surface preparation. If the body remained dust, it under the influence of circles will turn into an abrasive porridge, which will leave many deep scratches throughout the detail. Careful cleaning and cleanroom work are critical.
Secrets of working with the edges of details
When polishing edges and sharp corners, always reduce pressure and speed. These areas are the most vulnerable, and rubbing the varnish to metal is the easiest here. It is better to additionally paste them with paint tape or pass by a machine next to them, and bring the angle manually with a napkin with paste.
They often forget about the cleanliness of the tools themselves. The dried paste on the circle begins to work as a large abrasive, leaving deep furrows. Circles should be cleaned regularly with a special knife-comb or simply replaced with new ones in the process of work. Ignoring this rule negates all efforts.
The main secret of perfect polishing is not the desire to remove everything in one pass, but the consistent use of pastes from large to small with careful cleaning of the surface between stages.
Frequently Asked Questions (FAQ)
How long after painting can you polish the car?
The optimal time to start polishing depends on the type of varnish and drying conditions. It is usually recommended to wait 3 to 7 days for complete polymerization. Some modern varnishes allow polishing after 24 hours, but it is better to check with the manufacturer of materials. Too early polishing can lead to tightening of the varnish and the appearance of matte spots.
Can I polish my car without a machine?
Theoretically, it is possible, but the result will be much worse, and the effort will be many times more. Manually it is impossible to create a uniform pressure and speed necessary for high-quality removal of shaking. Hand polishing is only suitable for applying protective compounds or processing hard-to-reach places, but not for leveling the varnish.
How many times can you polish your car?
Each polish removes a micron layer of lacquer. With a competent approach, the car can be polished 5-10 times throughout the entire service life without the risk of rubbing the coating. However, the frequency depends on the thickness of the initial layer of the LCP, so before deep work is always desirable measurement of the thickness.
Do I need to wash my car after polishing?
Yes, after completing all the polishing steps, it is necessary to thoroughly wash the body to remove the remnants of the abrasive paste. The remaining paste can crystallize and further scratch the varnish or interfere with the application of protective wax. The wash is carried out using a high-quality shampoo.
What are holograms after polishing?
Holograms are micro scratches arranged in a particular order that are visible in the sun or under bright light. They appear due to the use of too rough paste at the finish line, dirty laps or improper machine working technique. Holograms are removed by re-polishing with softer compositions.