Skip to page content
USDA Forest Service
  
Treesearch

Research & Development Treesearch

 
Treesearch Home
About Treesearch
Contact Us
Research & Development
Forest Products Lab
International Institute of Tropical Forestry
Northern
Pacific Northwest
Pacific Southwest
Rocky Mountain
Southern Research Station
Help
 

Science.gov - We Participate


USA.gov  Government Made Easy


Global Forest Information Service

US Forest Service
P.O. Box 96090
Washington, D.C.
20090-6090

(202) 205-8333

You are here: Home / Search / Publication Information
Bookmark and Share

Publication Information

View PDF (46 KB bytes)

Title: Corrosion avoidance with new wood preservatives

Author: Zelinka, Samuel L.; Rammer, Douglas R.;

Date: 2006

Source: Wood design focus. Vol. 16, no. 2 (summer 2006): pages 7-8.

Publication Series: Miscellaneous Publication

Description: The increased use of alkaline copper quaternary (ACQ) and copper azole (CuAz) as wood preservatives for residential construction has led to concerns about the corrosion performance of fasteners. Information on the effects of these preservatives on the corrosion rate is limited, although Simpson Strong Tie has published a technical bulletin indicating that both ACQ and CuAz are roughly twice as corrosive as chromated copper arsenate (CCA) and recommends fastener types for a given environment and preservative (Simpson Strong Tie 2005). It is believed that ACQ and CuAz are more corrosive than CCA due to the higher percentage of copper in these preservatives and absence of chromium and arsenic; both are known as corrosion inhibitors. While accelerated tests exist for estimating the corrosiveness of new wood preservatives currently, there is no way to relate the results of these tests to in-service performance. For information about the effect of new wood preservatives on corrosion, and a critical review of test methods used to measure corrosion in wood, see Zelinka and Rammer (2005). Currently, many products are marketed for use with new wood preservatives, in lieu of using stainless steel connectors or fasteners. With so many “corrosion-resistant” alternative products on the market, it is important to know the fundamental principles of corrosion protection to make informed decisions when designing structures. This article focuses on considerations that need to be made when choosing products, other than stainless steel, to minimize corrosion of metals in contact with treated wood.

Keywords: Corrosion, anti-corrosives, wood preservatives, fasteners, joints, coatings, deterioration, connectors, CuAz, copper azole, preservatives, chromated copper arsenate, CCA, ACQ, alkaline copper quat

Publication Notes:

  • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
  • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

XML: View XML

Citation:


Zelinka, Samuel L.; Rammer, Douglas R. 2006. Corrosion avoidance with new wood preservatives. Wood design focus. Vol. 16, no. 2 (summer 2006): pages 7-8.

 


 [ Get Acrobat ]  Get the latest version of the Adobe Acrobat reader or Acrobat Reader for Windows with Search and Accessibility

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.