Cu-Bor is a Copper/Boron wood preservative, used to treat the groundline area of standing wood structures such as utility poles. The highly effective active ingredients in Cu-Bor travel deep into the wood by diffusion (osmotic action). Cu-Bor's labeled uses include:

  • Brush-on
  • Spray
  • Dip/Diffusion
  • Pressure Treating

Cu-Bor is also a furnish treatment in engineered wood products and a railroad tie treatment. Cu-Bor is available in bulk and ready-to-use packaging.

Proven Performance

Ten year stake test in Hilo. HI proves the efficacy of Cu-Bor A ten year stake test in Hilo, HI proves that our proprietary formula protects wood against fungal decay and termite attack, even in hostile environments.

Remedial Treatment

The principal cause of pole failure is decay, and the most common area for decay to occur is that portion of the pole from approximately 2 inches above groundline to approximately 18 inches below. The most accurate pole inspection method is to excavate this groundline area. For a marginal cost pole-owners can extend the service life of their poles by applying Cu-Bor externally and wrapping it with a moisture barrier before the excavation is closed.

Wood, however, is a biological commodity that can undergo deterioration by insects, decay fungi, termites, and mechanical destruction. In many ways wood poles, can outlast materials constructed of synthetic materials like concrete, fiberglass, steel and aluminum if well maintained and cared for in a consistent and timely manner.

Mike H. FreemanRemedial Treatment: Economic Benefits, Justification, and Auditing Techniques

Recommended Uses

 New Poles (especially those set in concrete)
 Used/Recycled Poles and Fence Posts
 Wood with Ground Contact
 Utility Poles with Disturbed Groundline or Grade Movement
 Utility Poles Stored for Extended Periods (6 months or more) Prior to Installation

Cu-Bor Brush-on Paste
Cu-Bor formulated as a brush-on paste protects wood in below ground installations like utility poles against decay. Cu-Bor Remedial Paste Cu-Bor formulated as a brush-on paste protects wood in below ground installations like utility poles against decay. Easy to use it goes on fast and adheres to wood for minimal product waste.
Cu-Bor Ready-to-Use Pouches
Cu-Bor pouches are quickly and easily applied with no waste when used in accordance with labeled directions. Cu-Bor Pouch Bandages Cu-Bor pouches are quickly and easily applied with no waste when used in accordance with labeled directions. Our highly effective bandage design provides protection for wood against decay at the critical groundline area. The impermeable poly backing reduces non-target leaching and increases deep wood penetration.

Cu-Bor Documents

16 JUL
2019

Oregon State University Utility Pole Research Cooperative

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While preservative treatment provides excellent long term protection against fungal attack in a variety of
environments, there are a number of service applications where the treatment eventually loses its effectiveness.
Soft rot fungi can then decay the wood surface, gradually reducing the effective circumference
of the pole until replacement is necessary (Figure IV-1). In these instances, pole service life can be
markedly extended by periodic below ground application of external preservative pastes that eliminate
fungi in the wood near the surface and provide a protective barrier against reinvasion by fungi in the
surrounding soil (Figure IV-2).
For many years, the pastes used for this purpose incorporated a diverse mixture of chemicals including
pentachlorophenol, potassium dichromate, creosote, fluoride and an array of insecticides.

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Responsive to Today's Enviroment

 Cu-Bor has two active ingredients: copper hydroxide and sodium tetra borate decahydrate (Borax). The Copper and Boron in these two molecules have very low mammalian toxicity. Accidental or inadvertent worker exposure is unlikely to cause serious or irreversible injury. Cu-Bor is registered by United States Environmental Protection Agency as a pesticide against wood destroying insects and decay fungi. Cu-Bor exhibits volatile organic compound (VOC) content at less than one-sixth the limits defined by South Coast Air Quality Management District (SCAQMD) for the wood preservative category of SCAQMD Rule 1113.Cu-Bor is fully compliant with all EPA and SCAQMD requirements.