How to deal with rust on a car body? Videos and Tips
Rust on a car body is a nightmare for any car owner. If corrosion is not eliminated in time, then after a short time it will quickly spread throughout the body and bottom and corrode the metal up to holes. To avoid such negative consequences, it is necessary to know about the various methods of rust control.
Before talking about various methods of struggle, you need to figure out why the car body rusts. This process is described in detail in chemistry textbooks: when iron interacts with water, air, acids and alkalis, chemical reactions occur, as a result of which we get iron oxide and hydrogen.
Since the body of any car is a thin sheet of steel with a layer of paint applied to it, the main task of anti-corrosion treatment is to protect the steel from direct contact with the environment.
They do this using various means, we have already written about many of them on Vodi.su:
- Ceramic Pro protective coating - effectively repels water from the surface of the machine;
- Dinitrol 479 - anti-corrosion protection of the body and sound insulation;
- vinyl films such as Carbon - covering the body with them, you avoid the appearance of small scratches and chips;
- waxing is an effective method, especially on the eve of the coming winter, when tons of reagents are poured onto the roads;
- galvanization - one can say the most reliable method, although expensive;
- electrochemical - controversial methods using devices such as "Rust Stop" or "Final Coat".
When you buy a new car, it usually has gone through all the necessary anti-corrosion treatment. In this regard, German and Japanese cars are famous, since their manufacturers use all available means - the same Dinitrol for the bottom and wheel arches, special water-repellent paintwork materials, galvanization. It is easy to verify this by comparing the state of some Audi A100 of 1990 and the domestic VAZ-2104.
Chinese budget cars, such as Chery Amulet or Lifan X60, do not have good rust protection, so the body rusts very quickly in the most problematic places:
- thresholds;
- wheel arches;
- places of articulation of parts.
Thus, if you want the car to last as long as possible, use any of the above methods.
But what to do if the first traces of corrosion appeared on the body?
Rust removal
The slightest chipped paint, when the metal base opens, must be immediately eliminated.
There are several options:
- minor damage that does not reach the base - polishing;
- a layer of soil is visible - local painting;
- deep cracks - treatment of the damaged area, followed by painting, varnishing and polishing.
It is worth saying that often such scratches are not visible due to a layer of dirt and dust, but after washing they are clearly visible. Polishing shallow chips comes down to applying a clear varnish or a special polish. If soil and metal are visible, then it is necessary to select the appropriate paint and varnish - we already wrote about the selection of paint on Vodi.su.
Deeply ingrained corrosion is much more difficult to defeat, for this you will have to buy a rust converter.
The algorithm of actions is as follows:
- we clean the damaged parts of the body - sandpaper or grinding nozzles of medium grit on a drill are suitable;
- or treated with anti-corrosion compounds (WD-40, Rust Killer, Rust Treatment) - they not only dissolve iron oxide, but also degrease the metal;
- then proceed according to a simple scheme - puttying (if there were dents), applying a primer, then paint and varnish;
- polishing.
It is clear that it is better to entrust this work to specialists who can choose the right shade and polish everything correctly - there will be no traces of dents and cracks.
There is also such a service as galvanizing - it is also done at home, when zinc in the form of a thin coating settles on problem areas.
Much is written about electrochemical protection, which protects against the very appearance of corrosion. This method is doubtful for many, since small plates are attached to the body, which are under low voltage. Such devices are quite expensive, and their effectiveness has not been proven, so seasonal anti-corrosion treatment once a year before the onset of winter will be much cheaper.
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