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Chemistry

Self-Healing Polymers for Impact-Resistant Coatings

Quick fact

Some self-healing coatings can repair a crack in under an hour when exposed to UV light, restoring up to 80% of the original impact strength.

Why this is interesting

Imagine your car's paint healing a scratch overnight, or a phone screen that repairs its own cracks. Self-healing polymers make this possible—how do they work?