Irregular patches of roughened, discoloured, partly stripped or disintegrating surface, possibly with crazing or cracking in the affected area. Traces of the attacking substance may be present.
Chemical corrosion of the paint film. This is often due to:
Light damage may be remedied by flatting, compounding and polishing. In the event of a more severe attack, remove the paint down to a sound surface, ensure that all traces of contaminants are removed, and repaint.