Harsh climatic conditions, reagents on the roads and constant humidity create an aggressive environment for any car. In such conditions treating the car with gun fat becomes not just a desirable procedure, but a vital necessity for preserving the body. This time-tested method of protecting metal from corrosion has proven itself to be one of the most effective and cost-effective ways to extend the life of a car.
Many car owners still believe that the factory coating guarantees complete protection, but reality makes its own adjustments. Mechanical damage, chips and microcracks allow moisture to access the unprotected metal, triggering irreversible oxidation processes. This is where it comes to the rescue cannon fat - a thick lubricant that can penetrate hard-to-reach places and create a powerful barrier.
In this article we will analyze in detail the application technology, the necessary tools and nuances that will allow you to complete the job efficiently. You will learn why this method remains popular despite the abundance of modern chemistry, and how to properly prepare your car for the procedure.
What is cannon lard and its properties
Gun lard is a petroleum product that is a thick, ointment-like mass of yellow or light brown color. This material was originally developed for preserving artillery barrels, hence its name. In the automotive industry, it is used due to its unique physical and chemical properties, which make it possible to effectively combat rust.
The basis of the paraffin type composition is mineral oils, ceresin and petrolatum. This combination provides the material with high adhesion to metal and the ability not to be washed off with water even after prolonged exposure. Anti-corrosion properties are achieved by creating a dense film that completely blocks the access of oxygen and moisture to the surface of the body.
Unlike many modern aerosol products, gun lard does not contain volatile solvents that evaporate quickly, leaving a thin and ineffective layer. It retains plasticity over a wide range of temperatures, does not crack in the cold and does not flow in the heat. This makes it an ideal choice for treating hidden cavities and the underbody of a vehicle.
Before purchasing, check the consistency of the material: high-quality cannon lard should be hard at room temperature, but easy to knead with your finger and not crumble.
Advantages and disadvantages of the protection method
When choosing a method to protect your car, it is important to objectively evaluate all the pros and cons. Cannon lard has its own strengths, which make it a leader among budget anticorrosion agents, but there are also features that you need to know about in advance.
The main advantages include:
- 🛡️ High penetrating ability: the material flows into the smallest cracks and microcracks, displacing moisture.
- 💰 Affordable cost: the price of processing is significantly lower than that of professional compounds in specialized centers.
- 🌡️ Heat resistance: retains properties at temperatures from -50 to +90 degrees Celsius.
- 🛠️ Easy to use: does not require complex equipment, can be heated on a regular stove or burner.
However, there are also disadvantages that cannot be ignored. The material has a specific smell and dries for a long time, remaining sticky. If you apply it to external body parts without subsequent washing, dust and dirt will stick to the sticky surface. In addition, cannon fat difficult to wash off from clothes and hands with ordinary detergents.
The Myth of Toxicity
There is an opinion that cannon fat is toxic to humans. In fact, modern purified brands are safe in contact with skin, although it is best to wear gloves to avoid contamination.
Necessary tools and body preparation
The quality of anti-corrosion treatment directly depends on the thorough preparation of the car. You can’t just smear the rust on top - this will only give a temporary effect. The process requires a serious approach and a certain set of tools.
To work you will need:
- 🔥 Heat source: hair dryer, gas burner or electric stove for heating the composition.
- 🧹 Metal brushes and scrapers for removing loose rust and peeling paint.
- 🧼 Degreaser (white spirit, acetone or special degreaser) for cleaning the surface.
- 💉 Large volume syringe or special gun for application into hidden cavities.
- 🧤 Brushes, rags and protective gloves.
The first stage of preparation is washing the car. It is necessary to thoroughly clean the bottom and arches of dirt using a high-pressure washer. After drying, troubleshooting should be carried out: inspect the body for the presence of paint blisters, through corrosion and mechanical damage. All areas of rust must be cleaned to bare metal.
☑️ Preparation for application
It is important to understand that degreasing - a critical stage. If you apply lard to a greasy or dirty surface, it will not stick and will fall off. Pay special attention to hidden cavities where condensation often accumulates.
⚠️ Attention: When working with open fire and heating devices, follow fire safety measures. Do not heat gun lard in an open container over an open flame—use a water bath or electric heat to prevent the vapors from igniting.
Anticorrosive application technology
The process of applying cannon lard requires compliance with the temperature regime. The material must be heated to a temperature of 80-90 degrees Celsius. When hot, it becomes liquid and fluid, which allows it to penetrate into the most inaccessible places.
It is most convenient to treat external surfaces (bottom, arches, sills) using a brush or sprayer. If you use a brush, apply a thick layer of the compound, rubbing it into the metal. For hidden cavities (spars, pillars, doors), it is best to use a medical syringe with an extended needle or a special gun with a flexible tube. This will allow the hot composition to be delivered deep inside the structure.
After application, the material needs time to cool and polymerize. Although it hardens quickly in appearance, complete hardening and maximum protective properties occur within 24 hours. During this period, it is advisable not to operate the car in the rain and not to wash it.
The main secret of high-quality processing is applying a hot composition to a dry and grease-free surface with the obligatory study of hidden cavities from the inside.
If you are treating your vehicle for the first time, you may need to reapply after a year as some of the compound may have run off or been absorbed. In the future, the procedure is repeated every 2-3 years, depending on operating conditions.
Comparison of cannon lard with other anticorrosion agents
There are many protective compounds on the market, and it is easy for a beginner to get confused. To understand the place of gun lard in this hierarchy, let’s compare it with its main competitors: bitumen mastics and modern oil anticorrosion agents.
| Characteristics | Cannon fat | Bitumen mastic | Oil anticorrosives |
|---|---|---|---|
| Penetration ability | High | Low (superficial only) | Very high |
| Durability | 2-3 years | 3-5 years | 1-2 years |
| Impact protection | Average | High | Low |
| Price | Low | Average | High |
| Difficulty of application | Requires heating | Ready to use | Ready to use |
Bitumen mastics create a thick, durable layer that protects well from stone impacts, but they do not penetrate microcracks. If a pocket of corrosion remains under the mastic, rusting will continue hidden. Oil anticorrosives, on the contrary, penetrate well, but dry out quickly and require frequent renewal.
Cannon fat occupies the golden mean. It combines the good penetrating power of oil and the durability of solid formulations. This makes it a universal solution for middle-aged and older car owners who want to reliably protect the body without overpaying for branded chemicals.
Typical mistakes when processing yourself
Despite its apparent simplicity, self-processing often leads to disappointment due to mistakes made. Knowing these nuances will help you avoid common problems and get high-quality results.
One of the main mistakes is applying the composition to wet metal. The water remaining in the rust pores or hidden cavities is sealed under a layer of lard. This creates ideal conditions for the development of electrochemical corrosion, and the car can rot from the inside even faster than without treatment. Always dry the vehicle thoroughly before starting work.
Another common mistake is not heating enough. Cold or insufficiently heated cannon lard forms clumps, does not spread and does not penetrate microscopic defects in the coating. It just lies on the surface and quickly falls off the first time you wash it or get hit by stones.
⚠️ Attention: Do not try to save time by skipping the rust removal step. Applying anticorrosive coating over swollen paint or loose metal will only preserve the problem, but will not stop the destruction.
Also, do not forget about the protection of plastic and rubber elements. Although modern compounds are relatively safe for rubber, it is better to avoid contact with brake discs, calipers and exhaust system elements, where strong heating is possible.
Frequently asked questions (FAQ)
How often do you need to renew your grease coating?
The recommended frequency of treatment depends on operating conditions. For regions with a harsh climate and an abundance of reagents, inspection and possible updating are recommended once every 2 years. With careful use and garage storage, the protective layer can last up to 3-4 years.
Can gun lard be applied over rust?
It can be applied, but only after mechanical cleaning. It is necessary to remove the loose, flaking layer of rust to a solid base. Gun lard has inhibitory properties and will stop corrosion from spreading further, but it will not restore metal that has already been destroyed.
How can you wash off gun grease if it gets on your clothes or body?
Organic solvents are best suited for removal from the body or tools: Galosh gasoline, white spirit or diesel fuel. Regular car shampoos don't work on it. It is extremely difficult to remove stains from clothes, so you should work in special clothing.
Is gun lard harmful to rubber seals?
High-quality purified gun fat is inert to rubber and plastic. However, if the composition contains aggressive additives or solvents, they can cause swelling of the rubber. It is recommended to first test the composition on an inconspicuous area or choose brands marked “safe for rubber.”