Self-healing paint

The automaker Nissan recently announced it has developed a self-healing coating for automobile paint jobs. It's actually a transparent resin applied over ordinary auto body paint. When scratched, the resin gradually flows back into the tiny grooves, filling in the scratch.

This achievement is a good idea of thinking outside the box: Unlike other companies, which thought the solution to scratches was to develop the hardest, most scratch-resistant paint or coating possible, these researchers turned the problem on its head and developed a coating that is just fluid enough to gradually flow back into any scratches in the surface.

—Mellow Monk

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