The crossword solution for the term SCRAPE OR SCRATCH is MAR, which stands for 'mechanical abrasive removal'. This is a process used in the automotive industry to remove paint, rust, and other surface contaminants from metal surfaces. It involves using a tool with an abrasive material, such as sandpaper or steel wool, to scrape or scratch away the unwanted material. This process is often used to prepare a surface for painting or other treatments.