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A UV coating (or more generally a radiation cured coating) is a surface treatment which either is cured by ultraviolet radiation, or which protects the underlying material from such radiation's harmful effects.[1] They have come to the fore because they are considered environmentally friendly and do not use solvents or produce volatile organic compounds (VOCs), or Hazardous Air Pollutant (HAPs),[2] although some materials used for UV coating, such as PVDF[3] in smart phones and tablets, are known to contain substances harmful to both humans and the environment.[4]