DIS-TRAN Steel Blog

3 Common Crossarm Preservatives

Posted by Melissa Hines on Jun 22, 2015 12:03:00 PM

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Are you treating your wood right?

Wood utility poles and crossarms are common objects seen throughout our communities along the streets and in our yards. These poles and crossarms are used to support and run electrical lines to our homes and businesses - making these products vital to our daily lives. Prolonging the useful life and structural integrity of these items is aided by treating the wood prior to installation.

Wood treatment refers to protecting wood from damage caused by insects, fungi, decay, climate and extreme weather conditions. Treating wood with the right chemical preservatives can extend the useful life and protect it from the harsh environment. Choosing the right wood preservative can save an utility time, frustration and money. The three most common wood treatments include:

  • Pentacholorphenol (Penta)
  • Chromated Copper Arsenate (CCA)
  • Creosote.

Pentacholorphenol (Penta) has been a preservative and maintenance staple of the Canadian and American utility industries for more than 60 years. Penta is a broad spectrum biocide and was previously used in herbicides, algaecides, fungicides and disinfectants. Today, the use of Penta in the U.S. and Canada is limited to wood preservation applied by trained-certified pesticide applicators. The production and use of Penta is regulated by the EPA and is an approved preservative in the American Wood Protection Association. (AWPA) Since its introduction in the utility industry, Penta has become the preferred wood preservative for poles and crossarms and is used extensively for treatment of laminated beams since it will neither wet the wood nor effect the glue joints. Penta can be used as a wood preservative for both Douglas Fir and Southern Yellow Pine crossarms.

Chromated Copper Arsenate (CCA) is a water based wood preservative. It is a mix of chromium, copper and arsenic. Recognized for the greenish tint it imparts to wood, CCA has been extremely common for many decades and is used primarly on Southern Yellow Pine poles and crossarms. DIS-TRAN Wood Products, LLC provides this alternative wood preservation to its customers making up about 5% of the crossarms we supply.

Creosote is one of the oldest of the commercial  preservatives. It is made by distilling coal tar and is often thinned with a light oil such as diesel fuel or mineral spirits. The color of Creosote is usually dark brown to black with an oily appearance and odor. Most wood treated with Creosote is used in marine pilings, utility poles and railroad crossties.

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At DIS-TRAN Wood Products, LLC, we not only manufacture a complete line of Douglas Fir and Southern Yellow Pine crossarms, but we also house our own treatment facility. Our treatment plant is located adjacent to our manufacturing facility in Pineville, LA. DIS-TRAN Wood Products, LLC have three trained-certified applicators onsite who follow all industry and environmental standards. With these three professionals onsite, DIS-TRAN Wood Products, LLC can treat approximately 1,300 arms with Penta on a single eight hour shift. Having our own onsite treatment plant allows us to have a fast response for storm emergenies. About 95% of the crossarms we manufacture are treated with Penta. 

Using the right chemical preservative for treating wood can greatly increase the life span and save a lot of time and money. Is there a wood preservative treatment you prefer to use? Would you like to see DIS-TRAN Wood Products, LLC offer an alternative wood treatment?  Leave us a comment below.  We would love to hear from you.

 

 

Check out our Easy to follow Preparation Plan for when storms are threatening you and your customers.Preparation for Storms

Tags: wood crossarms, southern yellow pine, douglas fir, crossarms, penta, wood treatment, chemical preservative, AWPA, CCA, wood preservative

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