How to use cannon fat when processing a car

Treating the underbody and hidden cavities of a car with cannon fat begins with careful preparation of the surface, since applying a heated composition to rust or dirt will lead to peeling of the protective layer after one winter season. Cannon fat is Petroleum Jelly with the addition of mineral oil and oxidized paraffin, which requires strict adherence to the temperature regime to penetrate the micropores of the metal. If you ignore the need for degreasing or apply too thin a layer, moisture will reach the body, starting irreversible corrosion processes under the protective film.

The wrong choice of heating tool often causes damage to the material or creates a fire hazard, so it is important to immediately decide on the method of heating the composition. Using an open flame without a water bath or heat gun can ignite the vapors, and insufficient heating will not allow Petrovax or analogues become sufficiently fluid for high-quality impregnation. In this article we will look at how to properly prepare a car, select equipment and apply a preservative to ensure long-term protection against aggressive reagents.

Preparing the vehicle and selecting consumables

Before starting work, it is necessary to ensure access to all areas to be treated, which often requires the dismantling of plastic protective screens and wheels. Anti-corrosion treatment will be effective only if the composition lies directly on the metal, and not on a layer of road dirt or old bitumen mastic. To work in hidden cavities, you will need special elongated spray nozzles, which allow you to deliver the hot composition to hard-to-reach places on the side members and sills.

It is important to prepare all the necessary tools in advance so that the process is not interrupted, since lard cooling in a container quickly thickens and loses its penetrating properties. You will need not only a heat source, but also personal protective equipment, since you are working with hot chemicals. It is critical to use a respirator and safety glassesso that vapors of solvents and splashes of hot composition do not enter the respiratory tract or mucous membranes.

• 🛠️ Construction hair dryer or industrial burner for local heating of metal and composition.
• 🧴 Special guns for thick mastics with the ability to heat the hose.
• 🧼 Alcohol or solvent based degreaser for final cleaning.
• 🛡️ Rags, gloves and safety glasses for safe work.

The choice of a quality product determines the durability of the protection, so you should give preference to proven brands that have proven themselves in harsh climatic conditions. Modern modifications of gun lard often contain corrosion inhibitors and additives that improve adhesion to metal surfaces. Do not skimp on materials, as reworking low-quality anticorrosive coating will cost much more than the initial professional treatment.

Necessary equipment and temperature conditions

The key to successful processing is maintaining the correct temperature of the compound, which typically ranges from 80 to 90 degrees Celsius. At lower temperatures preservative remains too viscous and is not able to flow into microcracks, and if overheated above 100 degrees, it may lose its properties or boil. To monitor the process, it is necessary to use a thermometer lowered into a container with melting material so as not to rely on visual assessments.

Heating is best done in a water bath or using special thermostats, which eliminates local overheating and burning of the material to the bottom of the container. If you use a hair dryer, direct the flow of hot air evenly, constantly stirring the mixture to achieve a uniform consistency. Sudden temperature changes can lead to separation of the components included in the composition. Petrovax or its analogues.

⚠️ Caution: Never heat cannon lard over an open fire without using a water bath, as the vapors may ignite instantly.

For application into hidden cavities, special guns are often used, connected to a compressor, which have the function of preheating the supplied mixture. This allows the material to remain fluid throughout the entire processing cycle, even in a cold garage. If specialized equipment is not available, you can use a regular medical syringe with an extended needle for pinpoint application into small holes.

Technology of application to the bottom and arches

Exposed surfaces such as underbody and wheel arches require a thicker coat than hidden cavities. Preheated cannon fat Apply with a brush or spray, trying to create an even layer without gaps or drips. Particular attention is paid to welds and attachment points of units, where corrosion most often begins to develop.

Before the main application, it is recommended to heat the metal itself with a hair dryer to improve the adhesion of the material to the surface and ensure deep impregnation. Cold metal can cause the first layer to harden quickly, which will lead to the formation of air pockets and reduce the protective properties of the coating. Movements with the brush or nozzle of the gun must be confident and consistent, covering the entire area of ​​the workpiece.

• 🚗 Thoroughly clean the arches of dirt and sand before starting work.
• 🔥 Warm up the metal to 40-50 degrees for better adhesion.
• 🖌️ Apply the composition with cross movements for uniformity.
• 👁️ Visually check the absence of “bald spots” and untreated areas.

After processing the arch, it is often recommended to install plastic fender liners that will protect the soft layer of anti-corrosion from the abrasive effects of sand and stones. If the fender liners are already installed, it is necessary to remove them for high-quality processing of the outer and inner sides of the niche. Ignoring this step negates all efforts, as dirt will accumulate between the body and the protective screen.

Processing of hidden cavities and spars

The most important and difficult part of the process is the treatment of hidden cavities, where moisture stagnates and causes corrosion from the inside out. For this purpose, special spray nozzles with a spray angle of 360 degrees are used, which are inserted through technological holes in the body. Anticorrosive should cover the entire inner surface with a thin but continuous layer, displacing remaining moisture.

During work, it is important not to overdo it with pressure, so as not to damage the factory seals and not create excess pressure in closed spaces. The movement of the nozzle should be smooth, with gradual removal from the cavity so that the material lies evenly along its entire length. Often, to access the necessary areas, it is necessary to drill additional holes in hidden places, which are subsequently closed with rubber plugs.

Particular attention should be paid to the bottom of doors and thresholds, where water and snow most often accumulate. After treatment, it is necessary to check the operation of all mechanisms, since anything that got inside locks or electric drives Petrovax may thicken and impair their functionality. Before starting work, it is better to insulate all electrical connectors or cover them with temporary plugs.

Safety precautions and protection of surrounding parts

Working with hot compounds requires extreme caution, as accidental contact of drops with the skin can cause serious burns. In addition, vapors from solvents and gun fat itself can be toxic when heated, so the availability of high-quality forced ventilation Mandatory in the work area. All work must be carried out in special clothing that covers exposed areas of the body.

Items not to be treated, such as brake discs, calipers, exhaust system and rubber suspension parts, must be carefully covered. Contact of preservative on brake mechanisms can lead to failure of the brake system, and on rubber pipes - to their destruction over time. The exhaust system is protected from the ingress of grease, since when heated it will burn out with an unpleasant odor and smoke.

⚠️ Attention: Be sure to keep a fire extinguisher on hand, as working with flammable liquids and heat sources carries a risk of fire.

After completion of work, it is necessary to dispose of rags and remaining materials in accordance with environmental standards, preventing them from entering the soil or sewerage system. Once cooled, gun fat hardens and can be difficult to remove from clothing or tools, so use disposable protective equipment or old clothing. Keeping your work area clean will prevent accidental slips and injuries.

Quality control and operation after processing

After the car has completely cooled down, it is necessary to conduct a visual inspection of all treated surfaces for gaps or coating defects. Well applied cannon fat must have a uniform structure, without bubbles or peeling, and fit tightly to the metal. In hidden cavities, inspection can be carried out through technological holes using a flashlight and a mirror.

In the first days after treatment, it is recommended to refrain from driving through wet snow or mud to allow the material to finally stabilize and adhere to the surface. Operating a car under normal conditions does not require special care, but once a year it is advisable to inspect the condition of the anti-corrosion agent. If mechanical damage to the coating is detected, it should be promptly restored to prevent the onset of the corrosion process.

• 📅 Conduct an annual inspection of the bottom and hidden cavities.
• 🚿 Wash the bottom using high-pressure washers carefully, without fanaticism.
• 🔍 Check the condition of plugs and plugs of technological holes.
• 🛠️ Locally repair coating damage immediately after detecting it.

The service life of properly applied gun lard is from 2 to 4 years, depending on operating conditions and climate zone. In regions with harsh winters and a large amount of reagents on the roads, monitoring of the protection status should be more frequent. Regular maintenance extends the life of the car body and keeps its residual value at a high level.

Typical mistakes when processing yourself

One of the most common mistakes is applying the composition to a damp or poorly cleaned surface, which leads to moisture retention under the anticorrosive layer. In this case corrosion continues to develop under the protective layer, and is usually discovered too late, when through rust has already appeared. Thorough drying and degreasing is not a formality, but a necessary condition for the durability of the protection.

Another common mistake is saving material and applying too thin a layer, which quickly collapses under mechanical stress. The grease should be in a layer sufficient to create a barrier, but not so thick that it runs or drips. The balance between the quantity of material and the quality of its distribution comes with experience, so it is better for beginners to practice on unnecessary parts.

⚠️ Attention: Do not try to mix cannon lard with other mastics or oils, this may lead to a chemical reaction and loss of protective properties.

Ignoring brake and exhaust protection can cost a car owner's safety or comfort. Always remember that gun lard is not a universal sealant, but a specific preservative for metal, and it must be used for its intended purpose. Compliance with technology and safety measures guarantees excellent results and peace of mind for the condition of your car.