Corrosion a patient and fierce body enemy

Apr 19, 2019 Automotive

Corrosion a patient and fierce body enemy

Corrosion – a patient and fierce enemy of the body
The same oxygen that allows us to breathe and the combustion process in the combustion engine is responsible for the corrosion of car bodies. The formation of the rust layer also involves water, a substance that is also essential for life. The older the car, the greater the problem turns out to be the damage gradually caused by corrosion. This arduous physical phenomenon, however, also applies to new cars, even those on the top shelf and supposedly more carefully protected. What is worse, it is not uncommon to have difficulties with warranty repairs of external corrosion centres. However, this process can be fought against and, to some extent, also prevented.
Rust is not only unsightly, but also weakens the body structure. The American climate, especially wet winters and warmer periods immediately afterwards, is a perfect breeding ground for corrosion. Removing rust is not worth waiting for, because the “infection” will deepen and spread to a larger and larger area. The first place where rust comes to the surface is usually the ends of the wheel arches, as well as the thresholds and lower parts of the door. These elements are most likely to come into contact with chipping stones and other objects that can damage the paint film. In addition, moisture accumulates in the wheel arches, which is a very negative factor, especially in winter, because of the road salt. A wheel arch exposed to water drained off by tyres and covered in dirty snow with salt corrodes much faster. Garaging your car more protects your body from negative weather conditions, and parking “under a cloud” promotes corrosion. The most sensitive areas can be protected to some extent by various types of protective measures.
Corrosion outbreaks can be found on well-cleaned cars. Rust may exist even though it has not yet come out on top, as it is still covered by a layer of crumbling paint. This results in bubbles that can be felt by hand. If there is relatively little rust, you can start removing it yourself. It is best to do this on a warm day and with low air humidity. First of all, the “infected” plate should be carefully sanded so as to get rid of even the smallest pits. Usually coarse sandpaper is sufficient, sometimes you have to use a hard tool or a grinder. It would be wise to use a tape to protect nearby areas so that they are not accidentally destroyed. After this, the component should be cleaned and degreased. A milder abrasive paper and, for example, light extraction gasoline or other solvents will help. Apply a primer to the place prepared in such a way, which can be purchased both in a ready-made spray form and in a dense liquid to be spread with a brush. Sometimes the colour of the primer is important for aesthetic reasons. It may also turn out that the damage is so deep that a bit of smoothness is necessary. The drying of such a layer requires some time, but haste is not recommended here. A lacquer is applied to the dry primer. It is important to choose a precise colour so that it is identical or closest to the colour of the body. This is facilitated by the marking on the rating plate. Usually a few thin layers are applied, of course, waiting even several hours for the applied layer to dry. It is worth buying a ready-made lacquer with hardener. After applying a colored paint, it is recommended to make an additional layer of clear paint. The budget of such a small, local mortar will not exceed several dozen USD. It is rather not worth playing with any car pens or slices, because they do not solve the problem of corrosion and are not a long-term method.
Many cars have special openings with plastic or rubber caps designed to be used in them as an anti-corrosion agent. It is a liquid poured through technological holes, which reaches many corners of metal sheets through the car door. The best way to do this is to have it done by professionals. Comprehensive maintenance costs 500-1000 USD. It secures at least for some time, but not 100%.
Professional services are necessary especially if the rust has already attacked a larger area of the body. The painter has to not only clean rusty sheets, but also patch up large cavities. This requires knowledge and specialist tools. There are dust-free paint application chambers in the paint shop and guns are used as standard. The gun allows aesthetic application of paint layers, which would be very difficult with a brush. Repair of a single element will cost us several hundred USD. When there is even more rust and managed to make a significant devastation better or the only solution is to replace the whole part. In order to prevent corrosion, it is important to wash the car frequently and thoroughly and to use good cosmetics.