Lightfastness
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Lightfastness is a property of a pigment or paint that describes how resistant to fading it is when exposed to light.
Description
Light striking a painted surface can alter or break the chemical bonds of the pigment, causing the colors to bleach or change, in a process known as photodegradation.
Materials that resist this effect are said to be lightfast.
See also
External links
- Lightfastness @ Wikipedia
