Penta is an oil-borne preservative which penetrates all treatable wood species effectively, saving costs for utilities by enabling them to use local trees such as Douglas fir, red cedar and pine. Penta is a highly economical choice for preserving wood over the long-term. The treatment is created from two basic and widely available chemicals; phenol and chlorine. Penta has demonstrated outstanding performance for more than 60 years against fungal decay, moisture and termites. It has become a favorite among linemen for climb-ability. Penta is not considered to be a hazardous waste, so Penta poles can be reused and recycled in a number of ways.