A telecommunication element having a durable color identifying polymeric
coating thereon is disclosed. The telecommunication element comprises an
elongated communication transmission medium, such as an optical fiber or
an optical fiber ribbon, and a radiation cured polymeric coating having
an identifying color applied on at least a portion of the transmission
medium. The identifying color in the polymeric coating is provided by
chromophore molecules that are covalently bonded thereto. Coating
compositions and a method are also disclosed.