UV exposure at different wavelengths will cause specific atoms to form a strong bond together. This principle is commonly used for curing UV inks on glossy magazines, bonding glues (e.g. ceramics), and sealing compounds.
In many cases, Quartz glass tubes or Quartz glass plates are used to protect the UV curing lamps from the material which they are curing. For example, when curing ink on large display boards or canvasses, a long rectangular Quartz plate might be used to keep the ink away from the lamp itself.