Burnt gray raid on the torpedo or scuffles on the door cards are often the first signs of aging cabin, which are striking when selling a car or just spoil the impression of owning a car. Recovery polymeric It requires the right chemistry, as the use of aggressive solvents can finally destroy the surface texture. Before starting work, it is necessary to determine the type of material: ABS plasticPolypropylene or soft-touch coating, as each responds to restoration differently.
The renovation process begins with a thorough diagnosis of damage, where it is important to distinguish surface contamination from deep structural changes in the material. If the surface has become sticky or crumbles to the touch, a simple wash will not help, and a deeper one will be required. abrasive Or a complete repainting of the element. Ignoring base preparation will cause even the most expensive reducing agent to peel off after a couple of weeks of operation.
There are several proven methods to return the details of the interior to the factory look, ranging from the use of a hair dryer and ending with the complex technology of staining in the camera.
The choice of the specific method depends on the degree of degradation of the material and your budget, as professional chemistry is not cheap.
In some cases, it is cheaper and more reliable to replace the door lining or steering wheel lining than to try to resuscitate completely sun-damaged plastic.
⚠️ Warning: Before using any aggressive chemical, be sure to test on an inconspicuous area of the cabin to make sure there is no negative reaction of the material.
Assessment of the condition and selection of the method of restoration
The first step in the process salon restoration A detailed inspection of all plastic elements to determine the scope of the work. Visually dull plastic often has microcracks that are not visible without magnification, but they become the foci of further destruction of the structure under the influence of ultraviolet radiation. If the material has lost elasticity and when pressing a finger, white marks or cracks remain, then cosmetic methods like polyroly will give only a temporary effect.
To determine the type of surface, you can use a simple test with water: apply a drop of water to a dry part. If the water is absorbed instantly, the protective layer is completely destroyed and requires deep restoration or painting. In the case when water is collected in drops, the surface has retained hydrophobic properties, and you can limit the quality of the water. cleaner And the protective gear.
Many car owners mistakenly believe that glossy restorers are suitable for all surfaces, which is a gross mistake.
For matte texture plastics, glossy formulations create a “fat film” effect that looks cheap and unnatural.
The correct selection of the tool allows not only to improve the appearance, but also to create a stable layer that repels dust.
Preparation of surface for recovery
The quality of the final result depends on 80% of the time. pre-cleaning surfaces. On the plastic, a layer of skin fat, silicones from previous treatments and road dust accumulates, which prevent the penetration of restoration compositions into the pores of the material. The use of universal salon cleaners is often insufficient, so professionals recommend using special degreasings on an alcohol basis.
The preparation process involves mechanical brushing with soft bristles, which allows you to clean the dirt from the depth of the texture without damaging the relief. After washing and drying, it is necessary to conduct a final degreasing, using lilac-free wipes to avoid getting the villi into the pores. plastic.
☑️ Checklist for surface preparation
Particular attention should be paid to the joints of parts and hard-to-reach places around the buttons and handles.
Residues of old silicone or polyroly can react with the new coating, causing it to swell or dry unevenly.
Only after full preparation can you start applying the main restoration compositions or paint.
Plastic polishing to eliminate scratches
If deep scratches are present on the surface of the torpedo or door maps, they can be eliminated by the method. polishing. This process is similar to polishing a paint body, but requires the use of more delicate materials and less pressure to avoid melting the plastic from friction. To work, you will need a polishing machine with a speed limiter or special hand sponges with an abrasive layer.
The polishing technology involves a gradual decrease in the graininess of the abrasive: first, coarse-grained paste is used to remove the main layer of damage, then fine-grained to create gloss. It is important not to overheat the surface, because thermoplastic They can be deformed and it will be impossible to correct it.
⚠️ Note: Do not use polishing pastes for the body on soft-touch parts, as they can irrevocably spoil the coating.
After polishing, the surface becomes smooth, but devoid of factory texture, which can be striking.
To restore matteness, you can use special mating varnishes or carefully treat the surface with scotch-bright.
The final step of polishing is the application of a protective layer that preserves the result.
Using thermophen to update color
One of the most popular “garage” methods is the treatment of burnt plastic with hot air, which allows it to temporarily return to its rich black color. The principle of operation is based on the fact that under the influence of temperature, the upper oxidized layer polymer It melts and mixes with the lower ones that still retain the pigment, creating the illusion of novelty. For this purpose, a construction dryer is used, tuned to the minimum temperature, or a special heat gun.
Movements should be fast and uniform to prevent local overheating and the appearance of bubbles or burns. This method gives an instant visual effect, but it is not a durable solution, as it does not protect the material from further exposure to ultraviolet.
The secrets of working with a hair dryer
Keep the dryer at least 10-15 cm from the surface |Constantly move the airflow without lingering in one place |Use this method only for black plastics, colored plastics can change shade |The effect lasts from 2 weeks to 2 months depending on operating conditions
Often, after cooling, the plastic becomes sticky, which indicates a violation of technology or incompatibility of the material with the method.
This method is suitable as an emergency measure before the sale of the car, but not as a full restoration.
To consolidate the effect after the hair dryer, it is recommended to apply a layer of heat-resistant protective composition.
Painting of plastic elements of the cabin
The most effective and effective way to recover is to painting interior details with special paint for plastic. This method allows not only to change the color, but also completely hide defects, scratches and scuffs, making the detail visually new. The key here is to use paint with elastic additives, which does not crack under vibrations and temperature changes.
The process of staining requires the creation of ideal conditions: no dust, normal humidity and temperature. Before applying paint, a special one is necessarily used. archetypal (primer) for plastics that ensure the adhesion of the paint layer to a smooth surface of polypropylene or ABS.
| Type of coating | Necessary soil | Paint type | Resistance |
| :--- | :--- | :--- |--- |
| Hard plastic (ABS) | Universal primer | Acrylic enamel | High |
| Flexible plastic (PP/PE) | Special primer for PP | Paint with plasticizer | Medium |
| Soft-touch coating | Insulating soil | Matte polyurethane | Low (prone to stickiness) |
| Textured plastic | Not required (during varnishing) | Structural paint | High |
Tip: For painting large parts, such as a torpedo, it is better to use paint in cans with a fan nozzle or spray gun for a uniform layer without stripes.
Apply the paint in thin layers, allowing each of them to dry completely according to the manufacturer's instructions.
Finishing is not always required, many modern paints for the cabin already contain mating components.
Full polymerization of the paint takes from 24 to 48 hours, during which it is not recommended to operate the salon.
Protection and long-term care for redesigned plastic
After successful recovery of plastic cells, it is critical to ensure that they are properly recycled. defenseTo ensure that the result is maintained as long as possible. The main enemies of the updated cabin remain ultraviolet rays and high temperature, so the regular use of protective compounds with UV filters becomes a mandatory procedure. The market offers a variety of products, from sprays and milk to gels and napkins.
The best proven compositions on a water-based, which do not create a greasy shine and do not attract dust, unlike silicone analogues. Apply protection should be evenly, distributing the tool with a microfibre wipe, and allow it to soak up before starting movement.
Regular treatment with protective compounds every 2-3 weeks prolongs the life of reconstituted plastic 3-4 times.
Do not leave your car in direct sunlight for a long time without using sunscreens.
To clean the dust, use only soft dry cloths, avoiding aggressive detergents in the future.
Removing stains from coffee or food in a timely manner will prevent the need for repeated deep dry cleaning.
How often should plastic protection be updated?
The frequency of processing depends on the type of means used and the vehicle operating conditions. Cheap silicone sprays are washed off after 1-2 sinks or after a week of heat, so they should be applied often. Quality polymer protective compositions (ceramics for the cabin) can last from 3 to 6 months. Visually, the need for updating will prompt the material itself: if the water stopped rolling down droplets and began to absorb, it is time to update the protection.
Can plastic be painted in a different color?
Yes, painting allows not only to restore the black color, but also to change the interior. However, repainting light plastic into dark requires more layers and perfect preparation so that the factory texture is not visible. When changing color to contrasting (for example, white to red) there may be problems with the old base translucent, so a dense soil filler may be required.
What if the plastic becomes sticky after restoration?
Stickiness (the effect of “that”) often occurs when using poor-quality reducing agents, violation of painting technology or degradation of soft-touch coatings. If stickiness has appeared after painting, the solvent may not have dried or a too thick layer is applied. This can be eliminated by thorough degreasing and applying a special mating varnish or talc, but in the case of degradation of the material often helps only a complete replacement of the skin.