Restoration of anti-corrosion and anti-noise coating of the underbody and wheel arches (Priora 2170)

During vehicle operation, the coating on the underbody is exposed to gravel, sand, salt, and moisture. As a result, the mastic and primer are damaged and worn out. Exposed metal is subject to corrosion. If the D-11A plastisol coating is damaged without disturbing the primer layer, clean the damaged areas from dirt and apply plastisol to the dry surface using an airless spray or brush. Dry the plastisol at 130°C for 30 min.

It is permissible to apply BPM-1 noise-reducing mastic instead of plastisol; drying of the mastic can take place under natural conditions. Before restoring the coating, place the car on a lift, carefully inspect the underside of the body and identify coating defects. Clean the underside of the car body from dirt, remove rust with a spatula, sandpaper or rust converter according to the instructions. Blow compressed air over the underside of the car. Place the car on a lift in the mastic application chamber and remove the wheels. Cover the brake drums and discs with protective covers, insulate the driveshaft, mufflers, cables and other areas that cannot be treated with mastic with thick paper and adhesive tape. Using a rag soaked in white spirit, degrease the areas stripped down to the metal.

Apply primer GF-073 to the cleaned areas by spraying or brushing and leave for 5-10 minutes. Then apply by spraying or manually (with a brush or spatula) bPM-1 mastic on defective areas with a layer of 1.0–1.5 mm. The overlap on the old layer of D-11A coating should be minimal. In the cold season, before using the mastic, keep it in a warm room until the temperature rises to at least 20°C. If the mastic thickens, dilute it with xylene, but not more than 3%. Clean the paintwork from mastic contamination with a rag soaked in white spirit. Dry the mastic at a temperature of 100–110°C for 30 minutes or at 18–28°C for at least 24 hours.