Pentachlorophenol is on its way out as a utility pole preservative.

Ultra Pole-billboard-for-ICUEE-1170xp
DCOI Today's Choice for Environmentally sustainable wood preservation
Courtesy of Ian Watts, Dupont

Viance has introduced another game-changer with it's innovation of UltraPole NXT. The article below mentions DCOI, the active ingredient UltraPole NXT, whose "time has come now that the environment is such a big consideration.“ I think you will find it difficult to find anything better than DCOI in that respect,” Bob Baeppler, Viance's business development manager for industrial products notes.

 "A Viance forebear, Rohm and Haas, developed DCOI in the 1980s. In 1996, Rohm and Haas won one of the first US Presidential Green Chemistry Challenge Awards, for the use of DCOI in a marine antifoulant coating. DCOI has also been used as a fishnet preservative and an algicide for cooling towers, Baeppler says."

UltraPole NXT with DCOI has low environmental impact due it is not a Restricted Use Pesticide, is not persistent in soil, and uses less energy, fossil fuels, and water to produce; with lower ecotoxicity than other materials used in poles.

Article in Chemical and Engineering news, April 2020 issue

Read more how UltraPole NXT treated poles benefit utilities and the environment.