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Clean the surface and remove any loose coating with a scraper and a steel brush.
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Use sandpaper on damaged areas and around the damaged area’s edges.
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Remove impurities, such as dirt and grease, with warm soapy water.
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Rinse with warm water.
The surface must be completely dry before starting maintenance painting.
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Protect the surfaces that will not be painted with tape or paper.
After preparing the surface, coat the surface with paint as soon as possible.