Application of protective composition U-Pol Raptor The body panels require strict adherence to the proportions of mixing the two components, since the slightest deviation from the technology leads to defects in polymerization or changes in the surface texture. This material is a high-strength polyurethane coating, which, when used correctly, creates a reliable armor layer on the car, resistant to chips, scratches and aggressive chemistry. Unlike traditional enamels, Raptor. It does not require complex equipment to apply and is often used by SUV owners to create a functional and aggressive style.
The surface preparation process takes up to 80% of the total work time and is a critical step, the neglect of which negates all efforts. The metal must be completely cleaned of corrosion, old paint coating and defatted with special compositions that do not contain silicone. Only after careful machining, the adhesion of the material to the body will be maximum, which guarantees the durability of the coating in real off-road operation.
Characteristics and advantages of Raptor coverage
The basis of the material is a two-component system, where the base component is mixed with a hardener immediately before use. The chemical formula provides high elasticity after drying, which allows the coating to withstand vibrations and deformation of the body without cracking. Unlike hard paint, polyurethane It is able to absorb the impacts of small stones and gravel that fly from under the wheels.
An important feature of the product is its ability to hide small surface defects, such as scratches from branches or scuffs. The texture of the “orange peel” characteristic of this type of coatings not only gives the car a unique appearance, but also makes minor damage that would be immediately visible on glossy paint invisible. In addition, the material has excellent ultraviolet resistanceIt does not fade or turn yellow over time under the influence of sunlight.
Among the key advantages are:
- 🛡️ High mechanical strength and resistance to abrasion.
- 💧 Water repellent properties and protection against corrosion.
- 🎨 The ability to color in any color or apply over the base.
- 🔧 Easy to repair local damage without full repainting.
To increase slippery properties, you can add a special modifier to the mixture if you plan to use the car frequently in dirty conditions.
Necessary tools and surface preparation
Before starting work, it is necessary to prepare the entire arsenal of tools, since the polymerization process is fast, and there will be no time to look for the missing equipment. You will need an air pistol with an anti-gravel nozzle, a compressor that provides stable pressure, a grinder and personal protective equipment. Particular attention should be paid to the respirator, since solvent vapors and fine dust during grinding are harmful to health.
The preparation of the body begins with the washing and complete drying of the car. All elements that are not planned to be painted - glass, pens, moldings, headlights - should be carefully glued with paint tape and covering material. Metal surfaces are cleaned to shine, all rust is removed, and then acid or epoxy soil is applied to prevent repeated corrosion.
For quality results, follow these steps:
- 🧹 Degreasing the surface with a special composition.
- 📄 Grinding the soil with abrasive P80-P120 to create drawings.
- 🚿 Repeated degreasing before applying the finish layer.
- 🌡️ Warming up the body in the chamber to a temperature of 20-25 °C.
☑️ Preparation for painting
Technology of mixing and applying material
The standard equipment includes four bottles of the base and four bottles of hardener. The contents of the hardener are completely poured into the base, after which the mixture must be intensively stirred for 2-3 minutes until a homogeneous mass is obtained. It is important not to use metal objects that can oxidize for stirring, it is better to use wooden or plastic stirring agents. The life of the finished mixture is about an hour at a temperature of 20 ° C, so you need to work quickly and in an organized manner.
Application is made by a pistol with a nozzle of 2.5-4.0 mm under a pressure of 3-4 atmospheres. The first layer is applied thin to ensure good adhesion, and dries for about 30-60 minutes. The second and subsequent layers are applied more abundantly to create the desired texture and thickness of the coating. Between the layers it is necessary to withstand the technological pause specified in the instructions so that the solvent has time to evaporate.
The application parameters are presented in the table:
| Parameter | Meaning | Note |
|---|---|---|
| Pressure outlet. | 3-4 atm | Regulated by the gearbox |
| Nozzle diameter | 2.5 - 4.0 mm | Depends on the desired texture |
| Time to dry the layer | 30-60 minutes. | At +20°C |
| Complete polymerization | 21 days | Operation in 24-48 hours |
Common Errors and How to Resolve Them
One of the most common problems is the appearance of shaverin or too large texture, which is often due to the wrong compressor pressure or too thick consistency of the mixture. If the pressure is too high, the material may not have time to spread, forming craters. If the mixture is too thick, up to 10% of the solvent may be added, but this may reduce the strength characteristics of the coating.
⚠️ Caution: Applying too thick a layer in one pass can lead to material slipping (“tears”) and increasing drying time, which can lead to dust sticking.
Another mistake is poor surface preparation, which can detach the coating along with the soil after a while. It is also important to prevent moisture from entering the spray gun, as this causes clouding and foaming. polyurethane. If defects do occur, they can be eliminated by grinding and local coloring after complete polymerization.
The Secret to Perfect Texture
Keep the gun strictly perpendicular to the surface at a distance of 30-40 cm. Sharp hand movements or changes in the angle of inclination lead to uneven distribution of the material.
Drying time and operating conditions
Although the surface is no longer sticky after a few hours, the complete polymerization of the chemical structure takes up to three weeks. In the first 24 hours, it is better not to operate the car, and during the first week to avoid high pressure washing and contact with harsh chemicals. The ambient temperature directly affects the reaction rate: in a cold room, the process slows down, in a hot room - accelerates.
Infrared drying can be used to speed up the process, but the heating temperature should not exceed 60°C so as not to disturb the structure of the material. After drying, the coating can be washed with ordinary car shampoos, and to restore the depth of color and hydrophobic properties, it is recommended to periodically treat it with wax polyroles for matte surfaces.
- 🕒 Primary drying: 1-2 hours.
- 🚗 Start of operation: in 24 hours.
- 🧼 High pressure wash: not earlier than 7 days.
- 🧪 Chemical resistance: complete after 21 days.
Comparison of Raptor with Competitors and Analogues
There are many analogues in the market, such as Line-X, BedRug Or a variety of acrylic antigraves. The main difference U-Pol Raptor It is available for self-use and the possibility of buying in small volumes. Professional systems often require special equipment for spraying and heating, making their use in garage conditions impossible.
Acrylic anti-gravel enamel is cheaper, but they are significantly inferior to polyurethane compositions in elasticity and durability. They lose color faster and scratch. The choice in favor of Raptor is justified when a balance is needed between high protection, aesthetics and reasonable cost of work.
The main advantage of Raptor over competitors is the ability to apply with their own hands without losing protective properties.
⚠️ Note: When working with any polyurethane coating, be sure to use nitrile gloves, as the material is very difficult to wash off the skin and can cause irritation.
Can I put Raptor on rust?
It's not recommended. The coating is not a rust converter. If you apply it on top of corrosion, the process of destruction of the metal will continue under the layer of protection, and after a short time the coating will rise and fall off along with the rust. The metal must be cleaned to shine.
How many liters do you need for one car?
For a full painting of the body of an SUV (for example, UAZ or Niva), 4-6 liters of the finished mixture are usually required. For processing only the thresholds and arches is enough 2 liters. The flow rate is highly dependent on the desired texture thickness and color (black covers better, white requires more layers).
How do you dilute Raptor if it thickens?
Only special solvents for polyurethane coatings (e.g. 647 or 646 in small amounts, up to 10%) may be used. Adding more solvent will reduce the strength of the coating. If the mixture began to harden in the bucket, it is useless to dilute it - it is subject to disposal.
Do I need to lay the surface before applying?
Yes, the use of soil is mandatory. On bare metal apply acid or epoxy soil, on the old paint - adhesive soil. This ensures the adherence of the heavy polyurethane layer to the body and prevents peeling.
How to wash Raptor off clothes or tools?
Until the material has frozen (for the first 30-60 minutes), it can be washed with acetone or solvent. After polymerization, it is almost impossible to remove it mechanically, the tools will have to be discarded or soaked in special aggressive paint washes, which is often impractical.