Cheap and easy to make, they held the color well and lasted for a long time.

Types

Pigmented

Through the 20th century, paints used pigments, typically suspended in a liquid.

Structural

In the 21st century, "paints" that used structural color were created. Aluminium flakes dotted with smaller aluminium nanoparticles could be tuned to produce arbitrary colors by adjusting the nanoparticle sizes

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