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Defeitos e danos na pintura

Paintwork Defects and Damage

Carroceria · página 480 de 566 · 501-36-18 · parte 5 de 14

Página 480 do Manual de Carroceria: Defeitos e danos na pintura
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501-36-18 Paint - General Information 501-36-18 DESCRIPTION AND OPERATION Cause/damage pattern: ‡ The temperature and contact time are critical. Splashes lead to loss of shine and lightening of color. TO BE UPDATED LATER Repair of damage: ‡ Flush immediately with plenty of water. ‡ The swellings can often be made to recede completely by treatment with the radiant heater or in the paint drying oven at max. 60°C for about 1 hour. Mechanical damage Stone impact damage or mechanical damage Mechanical damage caused by impact of stones or other hard objects and extending down to the metal panel lead very quickly to corrosion and rusting under the paint on the adjoining surface. Cause/damage pattern: ‡ Paint damage caused from the outside, down to filler, primer or metal panel. TO BE UPDATED LATER Repair of damage: ‡ Sand or blast out. ‡ Use anti-corrosion primer. ‡ Apply top coat. Damage due to corrosion Blistering/rusting below Air or water filled blister-shaped raised areas in the paint film. Cause/damage pattern: ‡ Overpainting corroded steel panel. ‡ Condensation in the spray air. ‡ Sanding water not dried out or salt crystal residues. ‡ Road chippings and road winter grit containing salt. E59486 Repair of damage: ‡ Sand the affected area of damage or the body component and re-create the paint finish. ‡ More severe and larger areas of rusting below must be repaired using the corresponding repair painting, Repair Level III or IV. Damage caused by faults in treatment ‡ Craters ‡ Paint boils ‡ Adhesion defects ‡ Adhesion defects - clear lacquer ‡ Sanding scores ‡ Formation of stripes ‡ Peeling/blistering on plastic parts ‡ Blistering on polyester material ‡ Peroxide marks in metallic paints