How does light exposure affect paint over time?

Light exposure, particularly from ultraviolet (UV) radiation, has a significant impact on paint over time. When paint is exposed to light, especially sunlight, the energy from the UV rays can break down the chemical bonds in the paint film. This process leads to fading of colors as it degrades pigments, makes the paint less vibrant, and can lead to a chalky appearance on the surface.

Additionally, prolonged exposure to light can cause other forms of degradation, such as brittleness and cracking of the paint film, which may compromise its protective properties. As a result, this degradation not only affects the aesthetic qualities of the paint but also its functional effectiveness, making it essential to consider light exposure when evaluating the longevity and maintenance of painted surfaces.

Other options suggest either an enhancement of the paint’s quality or no impact, which does not reflect the real effects of light exposure on paint materials.