For a long time I thought that body shops only knew how to boil, cut and mindlessly fill everything with acrylic, until I came across the restoration of a collector’s coupe that had experienced unsuccessful dry cleaning of the engine compartment with acid solutions. Not only did the appearance suffer, but the diffusion of active substances into the pores of the inner arches began. Most workshops offered to simply clean everything with a brush and blow it with “lamb fat”, which would simply preserve the problem for a couple of months until the first serious corrosion. Fortunately, I was advised in time to contact the guys who approach chemical restoration processes at the level of a research center. They did not do anything blindly - first they conducted tests to neutralize alkali residues, completely washed out hidden cavities under pressure and only after that began the phased application of epoxy insulators. You can familiarize yourself with their surface preparation methodology and look at the technical equipment of the spraying zones on the resource https://autobodylab.com/ , where a database of technological maps for various types of metals, including aluminum and composites, is collected. As a result, I got perfect adhesion of the new coating, which has been holding for the second season without any swelling or change in shade. The salon was returned without any extraneous odors of paint or solvents, which was a critically important point for me.
