Restoration of areas affected by corrosion should be carried out immediately upon detection of its traces on the paintwork or in places where the mastic has peeled off.
The most radical method of rust removal is mechanical, although more laborious. The combination of chemical and mechanical treatment of the affected areas is the most appropriate and effective.
Restoration of areas affected by corrosion should be carried out in the following order. For easier rust removal, moisten the damaged area with mineral spirits or auto cleaner «Omega 1». Removal of corrosion products is carried out with metal brushes, scrapers of various shapes, spatulas, grinding wheels and skins on a fabric or paper basis.
Clean the damaged areas from rust, old primer and paint, bituminous or plastisol coating to a metallic sheen. Rinse cleaned areas with water, dry and degrease them.
Apply with a brush a phosphating agent of the type «phosphator» and dry the treated surface for 25–30 minutes at a temperature of 18–20°C.
On the prepared surface, apply a quick-drying, phosphating or passivating-type primer with a low drying temperature, such as «VL-2» or «VL-08» (Phosphating: drying temperature 15–20°C, drying time 24 hours) or GF-073, NTs-097 (passivating: drying temperature 15–20°C, drying time 4 hours). After the first coat has dried, apply a second coat of primer.
Let it dry slightly and paint with decorative enamel.
Effective control of structural corrosion is the most time-consuming and costly. It consists in inspecting the car, its complete disassembly and the replacement of individual elements of the body affected by corrosion or the removal of damaged areas and welding of linings to these places. The installation of overlays does not solve the problem, it only somewhat slows down the development of through corrosion of the body. Replacing damaged elements from the composition of spare parts or manufacturing new elements will extend the life of the body by another 10–15 years.