Years of sunlight turn ordinary signs into heavy metal-looking logos

Years of sunlight can do more than fade a sign. Ultraviolet radiation breaks down pigments and the materials that hold paint together, causing colors to fade, crack, and peel away. When that happens unevenly, parts of the lettering can survive while the surrounding color disappears. — Read the rest The post Years of sunlight turn ordinary signs into heavy metal-looking logos appeared first on Boing Boing.