Vale tinplate. Historic car body protection
If we are speaking about a historical car body works and restoration of the body, as the main priority should be mentioned the protection against possible corrosion. For this reason, it is especially important to avoid any contact between a metal body and a polyester scraper.
As times and technologies are changing super fast, so is the car body manufacturing machinery. How else then to explain the fact that the car manufacturers today give up to 12 year body warranty against rust?
But unlike the high-tech body of new vehicles, old car metal sheet body panel is often severely damaged by moisture over a longer period of time. For this reason, owners should pay particular attention on how to get rid of any corrosion if it is present and, of course, do what ever it takes to keep rust from appearing again.
Up till 1980s, plastics and aluminum were used very rarely in vehicle body structures. Structures were made mostly of steel sheet metal, and the biggest enemy of course was water (in all it’s forms), especially the muddy one that has been sprayed on the bottom of the vehicle. Consequently, quite a lot of cars had to be sent to a graveyard. After all, they were so rusted that it was impossible to continue using them on the common roads.
One of critical reasons why the old and valuable car owners allow their cars to be restored (carefully, of course) by doing paint work that costs several thousands of dollars, is to avoid the sad fate described above that could await her it in the upcoming years. Moreover, nowadays the anti-rust protection options are much better than before for decades.
Isolation. Old color layer below the new one
Is the old car paint layer stable? And can I paint directly on it? These are two very important questions that every car owner and his chosen car painter should ask before modern auto paint coating is applied on the old car paint layer, which has already suffered from the tooth of time.
In fact, at that time many car factories used to treat their products with nitro car paints or thermoplastic enamelling. Both these color types are well known as problem sources for car-repainting. In contact with modern auto paint materials, such as existing solvents in 2K grinding soils, this car paint can even peel from the metal surface. If you encounter this problem, it is not just a problem of adhesion – all furnishings look something like a crocodile skin and everything will have to be done once more, righ from the very beginning. Thus such color layers are not suitable for modern car paint materials, and it is advisable to clean the metal surfaces, and start all from the beginning – with an acid or a quality epoxy primer. Whether or not auto paint layer tolerates the solvent or not, you can find out by dripping a cloth in the solvent and applying it to a car paint layer for a minute or two. If the surface becomes soft, you must remove the old paint layer completely. It’s not an easy job, but gives a perfect result.
Old car bodywork and painting and renovation work is just like building a new house – a lot of patience and huge effort. And if the basics are put in correctly as well as each subsequent operation is carried out carefully and by using only high quality materials, you can avoid 99% of problems in the future. Car will retain its value in worse case scenario, but skyrocket in the best case scenario.