UV radiation
UV rays are part of sunlight and trigger numerous chemical reactions. In extreme cases, the molecular adhesive structure can be destroyed within a few minutes, which is why it is essential to store UV-sensitive adhesives in the dark. Hot melt adhesives and rubber adhesives are particularly susceptible. Butyl and acrylic adhesives, on the other hand, are very resistant to UV rays. In the latter, UV radiation can even be used specifically to increase chemical stability through crosslinking.