Long-term efficacy combined with low environmental impact

  • UltraPole™ NXT is an oil-borne preservative that makes poles easy to climb.
  • The active ingredient in UltraPole NXT and UltraArm NXT is not a Restricted Use Pesticide and is not persistent in soil.
  • UltraPole NXT and UltraArm NXT have low to no odor.
  • UltraPole NXT and UltraArm NXT use less energy, fossil fuels, and water to produce; with lower ecotoxicity than other materials used in poles.
  • UltraPole NXT and UltraArm NXT have a wider range of disposal options at the end of life. 
  • UltraPole NXT and UltraArm NXT are the only oil-borne preservative-treated poles and crossarms with a 50-year limited warranty. 
  • DCOI, the active ingredient in UltraPole NXT and UltraArm NXT, earned the EPA’s President’s Green Chemistry Challenge Award in 1996 for its use as an alternative to tributyltin (TBT) compounds in marine antifoulant coatings. 
  • DCOI is also the active ingredient in Ecolife®, the best performing, non-metal based, above-ground residential deck preservative on the market. 

Ultrapole Nxt
Ultrapole Nxta
Ultrapole Nxtb

The first major innovation in treated wood pole protection with decades of stake performance data

  • DCOI – Oil-borne preservative for the utility industry
  • Standardized by the American Wood Protection Association (AWPA)
  • UltraPole NXT and UltraArm NXT are the only oil-borne wood pole and crossarm preservative in the industry with a 50-year warranty.
  • Perfect for industrial wood pole and crossarm applications in all ground contact decay hazard zones
    • Crossarms – both Southern yellow pine and Douglas fir
    • Utility poles – Southern yellow pine
    • Barn poles – Southern yellow pine
    • Posts (guardrail and fence) – Southern yellow pine

Product Applications

Utility Poles and Crossarms

  • Ultrapole Nxta

    Utility Poles - UltraPole NXT provides long-term efficacy with low environmental impact.

  • Ultrapole Nxt Crossarms

    Crossarms - UltraArm NXT performs in all decay hazard zones for both Southern yellow pine and Douglas fir.

The Qualities That Matter to You

Ultrapole Nxt Poles With Horses

Lower Environmental Impact

  • The effectiveness of DCOI at lower retentions translates to fewer chemicals overall in the environment.
  • DCOI is non-persistent in the soil and breaks down readily into harmless compounds.
  • Compared to other materials such as steel or concrete, DCOI treated UltraPole NXT poles and UltraArm NXT crossarms use less energy, fossil fuels and water; while producing less acid rain, eco-toxicity, and greenhouse gases.
  • DCOI is not a restricted use pesticide.
  • At the end of life, instead of disposing in increasingly restrictive and expensive landfills, UltraPole NXT poles and UltraArm NXT crossarms have a wider range of disposal options.

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Performance and Standards

  • Twenty-eight years of field data conducted by a leading utility industry research group and university show that the UltraPole NXT and UltraArm NXT provide effective protection against wood destroying organisms. Long-term stake tests indicate performance that is superior to the most common oil-borne pole treatment while using much lower amounts of preservative. Presented to the AWPA in 1999, data from a Mississippi State University test showed that DCOI is approximately three times more effective than pentachlorophenol after 14 years exposure in the Dorman test plot.
  • DCOI has been standardized as a wood preservative by the AWPA since 1989, and ground contact uses were added in 2017. AWPA currently lists DCOI in the P-39 standard. Standardization continues today, with data packages submitted in 2017 supporting preservative retentions that are one-third of those for pentachlorophenol.

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The Active Ingredient - DCOI

  • DCOI, the active ingredient in UltraPole NXT AND UltraArm NXT earned the EPA’s Presidential Green Chemistry Challenge Award in 1996 for its use as an alternative to tributyltin (TBT) compounds in marine anti-fouling coatings.
  • DCOI's formulation is 4,5-Dichloro-2-N-Octyl-4-Isothiazolin-3-One.
  • DCOI is used in, and currently sold as:
    • a marine antifoulant
    • an algaecide for cooling towers
    • a wood preservative fungicide/insecticide component in the AWPA standardized EL2 formulation used for Ecolife® treated wood. 
  • DCOI is very effective when used as a fungicide/bactericide for in-can paint formulations.

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Pole hardware

Pole hardware that is suitable for penta and CCA poles are also suitable for UltraPole NXT and UltraArm NXT.

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50-Year Limited Warranty

UltraPole NXT and UltraArm NXT are the only oil-borne wood pole and crossarm preservatives in the industry with a warranty. Viance confidently warrants UltraPole NXT and UltraArm NXT against structural damage caused by termites and decay for 50 years. See UltraPole™ NXT and UltraArm NXT Warranty for terms and conditions.

Troy Carpenter, Foreman J.F. Electric, Edwardsville, IL

Working to rebuild an electric distribution line for South Central Power Company

In replacing utility poles with DCOI treated UltraPole NXT utility poles, Troy Carpenter said, “Unlike the other poles, these didn’t smell and they don’t cause me to sneeze.”

Brian Murch, Electric Distribution Supervisor

City of Painesville, OH

"The first things I noticed were the poles were odor-free and dry to the touch."

Product Information

UltaPole Resources

AWPA Use DescriptionAWPA Use CategoryApplications
Exterior Construction Above Ground
UC3B
Crossarms
Ground contact or freshwater Non-critical components
UC4A
Utility Poles and Crossarms
Low decay
Ground contact or freshwater Critical components or difficult replacement
UC4B
Utility Poles High decay
Ground contact or freshwater Critical structural components
UC4C
Utility Poles Severe decay

Three retentions for DCOI reflect the varying decay hazard situations that are encountered in the field.

Retentions for Southern pine, Red pine and Douglas fir poles

Kg/m3(kilograms per cubic meter)Use CategoryPCF (pounds per cubic foot)
  • Southern pine 1.6
  • Douglas fir 2.4
  • Red pine 2.7
UC4A
  • Southern pine 0.10
  • Douglas fir 0.15
  • Red pine 0.17
  • Southern pine 2.1
  • Douglas fir 2.4
  • Red pine 2.7
UC4B
  • Southern pine 0.13
  • Douglas fir 0.15
  • Red pine 0.17
  • Southern pine 2.4
  • Red pine 3.2
  • Douglas fir 3.2
UC4C
  • Southern pine 1.5
  • Douglas fir 0.20
  • Red pine 0.20

Retentions for Crossarms

Kg/m3(kilograms per cubic meter)Use CategoryPCF (pounds per cubic foot)
  • Southern pine1 2.1
  • Douglas fir2 2.1
UC3B
  • Southern pine1 0.13
  • Douglas fir2 0.13
  • Southern pine1 2.4
  • Douglas fir2 2.1
UC4A
  • Southern pine1 0.15
  • Douglas fir2 0.13

1 - Includes Southern, Mixed Southern, Radiata, Patula and Caribbean pines

2- Douglas fir is coastal variety