Gun lard is used to protect the underbody of a car from corrosion, preserve parts during long-term storage and create a waterproof layer on hidden body cavities. This viscous material based on petroleum oils and additives is able to penetrate microcracks, displacing moisture and blocking the access of oxygen to the metal, which makes it an indispensable tool for preventing rust in hard-to-reach places.
Unlike bitumen mastics, which crack over time, cannon fat Retains elasticity even at extremely low temperatures, without dripping in summer or chipping in winter. It is used both for the initial treatment of new cars and for restoring the anti-corrosion protection of used cars, where deep impregnation of already damaged surfaces is required.
The main scope of application covers the lower part of the body, wheel arches, sills and side members, where the risk of contact with aggressive reagents and water is maximum. Due to its high adhesive properties, the substance is securely held on vertical and inclined surfaces, forming a durable protective barrier that does not require frequent renewal.
Main areas of application in the automotive industry
The main purpose of this material is to create a reliable barrier between the metal and the external environment. Anti-corrosion treatment underbody is a classic use case, where a layer of substance a few millimeters thick prevents the metal from oxidizing under the influence of road salts and moisture.
Particular attention is paid to hidden cavities such as side members, door pillars and the inner surfaces of the sills. The material is often supplied to these areas under pressure so that it penetrates into all the cracks and preserves the metal from the inside, where visual inspection is impossible.
- 🛡️ Processing of welds and joints for sealing
- 🚗 Preservation of cars before long-term parking or transportation
- 🔧 Lubrication of threaded connections exposed to water
- 🔋 Protection of battery terminals from oxidation
It is important to note that the material is inert to rubber and plastic elements, which allows it to be applied in mixed areas without the risk of damaging the seals. This sets it apart from some aggressive solvents or bitumens that can destroy rubber.
Underbody and wheel arch protection
The lower part of the body takes the brunt of the impact from stones, sand and chemicals flying from under the wheels. Cannon fat here it works as a shock-absorbing lubricant, dampening micro-shocks and preventing paint chips, which become centers of corrosion.
When applied to wheel arches, the material fills all irregularities and technological holes, creating a monolithic film. Unlike hard mastics, it does not burst when the body is deformed or hit by gravel, continuing to protect the metal.
⚠️ Attention: Before application, it is necessary to thoroughly clean the surface of dirt and old rust, otherwise the protective layer will preserve moisture underneath, accelerating the destruction of the metal.
The application technology involves heating the composition to a liquid state for better penetration into the pores of the metal. After cooling, a dense but elastic layer is formed, which retains its properties for years without drying out.
☑️ Anticorrosion check
Preservation of equipment and hidden cavities
For long-term storage of equipment, be it a car, agricultural equipment or military equipment, reliable preservation is required. Preservative properties cannon fat allows you to create a layer impenetrable to moisture and oxygen for up to 5-10 years.
It is especially effective when used in hidden cavities where it is impossible to reach for regular maintenance. When heated, the liquid fraction flows into the smallest gaps, and after hardening, it reliably blocks the access of corrosion.
The material is often used to protect threaded connections that can become sour over time. Treated bolts and nuts remain movable even after years of use in harsh conditions.
| Parameter | Meaning | Unit of measurement |
|---|---|---|
| Dropping point | not lower than 55 | °C |
| Penetration at 25°C | 200-300 | 0.1 mm |
| Mass fraction of water | no more than 0.5 | % |
| Temperature range | -50...+60 | °C |
Chemical composition and additives-->
spoiler: The secret of efficiency: It is based on high-viscosity petroleum oils thickened with ceresin and paraffin. Special additives enhance anti-corrosion properties and adhesion to metal.
Comparison with bitumen and polymer mastics
Unlike bitumen mastics, which form a hard crust, cannon lard remains plastic. Over time, bitumen oxidizes, cracks and flakes off, allowing water to access the metal, while conservation lubricant self-tightens for minor damage.
Polymer compositions often create a film that is too strong, but fragile, and is susceptible to pinpoint impacts. The oily base of the material under discussion provides a “self-healing” effect and deep penetration, which is not available for aqueous emulsions.
However, it is worth considering that the material is not a sound insulator to the same extent as thick bitumen sheets. Its main function is chemical protection, not acoustic comfort, although some damping effect is present.
Expert advice: To enhance the effect, you can add a little graphite lubricant to the heated lard, which will improve the sliding and anti-friction properties of the coating.
Correct application technology
The quality of protection directly depends on surface preparation and application temperature. Cold material will not be able to penetrate microcracks, so it must be heated to 80-90 degrees Celsius using special heaters or a water bath.
The composition can be applied with a brush, spatula or a special heated sprayer. For hidden cavities, long tubes with nozzles are used, which allow the material to be evenly distributed inside the profile.
- 🔥 Heating the composition to operating temperature (liquid state)
- 🧹 Thorough cleaning and drying of the treated area
- 🖌️ Applying the first layer to impregnate the pores
- 🛡️ Formation of the final protective layer of the required thickness
It is important not to overheat the material, since at temperatures above 100 degrees, light fractions may burn out and lose some of their beneficial properties. Work should be carried out in a well-ventilated area.
⚠️ Attention: Do not apply the material to a hot engine or exhaust system - this may lead to fire or smoke in the interior.
Service life and operating conditions
If applied correctly and there is no mechanical damage to the base layer, the protection lasts from 3 to 5 years. In an aggressive urban environment with a large number of reagents, it is recommended to check the condition of the coating annually.
The material is resistant to salt water, alkalis and acids, making it ideal for cold climates where roads are heavily salted. The key advantage is that there is no need to remove the old layer when updating the protection, just clean the surface and apply a new layer on top of the old one.
Temperature stability allows the composition to be used from arctic cold to hot summer without fear of dripping or cracking. This is a universal solution for year-round operation of equipment.
Main conclusion: Cannon lard is a time-tested means for deep preservation and protection of hidden cavities, superior to modern analogues in penetrating ability.
Is it possible to apply gun lard to rust?
Yes, the material has high penetrating ability and displaces moisture, stopping the corrosion process. However, for maximum effect, it is better to remove loose rust mechanically before processing.
How to dilute cannon fat if it has frozen?
For liquefaction, you can use kerosene, white spirit or diesel fuel. However, it is better to simply heat the composition to operating temperature to restore its properties without changing the chemical composition.
How to wash gun fat from clothes?
A fresh stain can be removed with gasoline or kerosene, then washed with laundry soap. Old stains require pre-treatment with a solvent and repeated washing.
Is gun lard harmful to rubber parts?
The high-quality composition is inert to rubber, plastic and paint coatings. It does not cause swelling or destruction of seals, unlike products based on aggressive solvents.