What treatment is used on power poles?
In order to last for decades after they are sunk into the ground, wood utility poles need preservatives that fend off termites, fungi, and the elements. Not many chemicals are up to the challenge. About half the wood poles in the US are treated with pentachlorophenol, known as “penta” in the trade.
What is the process for treating wood?
The pressure-treating process takes place in a cylindrical holding tank. The tank is depressurized to create a vacuum and the treatment solution fills the tank. Pressurization forces the wood to soak up the solution. Once the treatment completes, workers and cranes remove the boards.
How do you treat timber poles?
In the pressure treatment process, an aqueous solution of CCA is applied to the wooden poles using a vacuum and pressure cycle, and the treated wood is then stacked to dry. During the process, the mixture of oxides reacts to form insoluble compounds, helping with leaching problems.
How do you treat and preserve wood?
Ideally, wood that has been treated with a preserver should also be treated with a suitable top coat such as an wood oil, wood paint or wood varnish. These top-coat products seal in the preserver and provide protection against weathering and wear from direct contact.
What is DCOI wood preservative?
DCOI is an organic oil-borne wood preservative that has 28-year stake test data from a study commissioned by EPRI. The appearance is the same as our current product. One big advantage of DCOI is that it is not a restricted use pesticide.
Are cedar poles treated?
Cedar poles can effectively be treated with CCA, although it is more common to see Penta-treated cedar poles-either thermal butt treated or full length treated.
Which is the best method of applying preservative?
The preservatives can be applied on the surface by brush, or when more prolonged effects are required, the treatment may involve dipping, keeping submerged in the preservative tank (open tank application) or injecting the preservative under pressure into the cells of the timber.
What is the best method of applying preservative on site?
Double vacuum is the most effective method of application, followed by immersion and then brush or spray as the least effective method. Preservative resistant to leaching but some lost by evaporation. Non-corrosive and non-staining.
How do you treat outdoor softwood?
Softwood decking and furniture in a sheltered garden Use a wood preservative followed by a decking oil or garden furniture oil. If mould or algae is already present, clean thoroughly with a fungicidal wash or mould and mildew cleaner first. When treated, try to keep free of organic matter.
Can you treat wood with motor oil?
Used motor oil can perfectly preserve the wood. This is because used motor oil cannot completely dry. It keeps sipping deeper into the wood. This action will stabilize the wood by making it strong and durable.
Can I use motor oil to preserve wood?
Used motor oil can perfectly preserve the wood. This is because used motor oil cannot completely dry. It keeps sipping deeper into the wood. It is also one of the less expensive methods for preserving wood as compared to linseed oil and other premium preservatives.
What is the best outdoor wood treatment?
According to them, these are the nine most effective wood sealers:
- Thompson’s Water Seal.
- Rainguard Premium Wood Sealer.
- DEFY Crystal Clear Sealer.
- Anchorseal 2.
- Roxil Wood Protection Cream.
- Eco-Advance Exterior Wood Waterproofer.
- Ready Seal Stain and Sealer for Wood.
- Pure Tung Oil Natural Wood Sealer.
How many pine poles are treated each year?
Freeman estimates a total of 4.2 million poles treated annually with all preservatives. Southern pine species can be treated with a variety of wood preservatives, including waterborne (treatments where the carrier for the preservative is water) and oilborne preservatives (where the carrier is oil or the treatment is creosote).
Why choose a pressure treated power pole?
They are the backbone of overhead line construction, and most of these poles are pressure treated with some type of preservative. Choosing a pole treated with an appropriate wood preservative for the environment can save a utility time, frustration and money. And, there are a number of chemical choices available.
What are the standards for preservative treating wood utility poles?
The standards for preservative treating of wood utility poles are set by the American Wood Protection Association (AWPA) and Canadian Standards Association (CSA) in their respective countries. American treating requirements are detailed in the AWPA Book of Standards and in Canada in CAN/CSA O80 Series-15 – Wood Preservation.
How can remedial treatments improve pole life?
Applying effective remedial treatments to extend the safe, reliable service-life of the pole. Remedial treatment is the key to getting the most out of your investment. The use of remedial treatments will earn dividends via extended pole life and improved plant resiliency.