Decay resistant wooden railroad crosstie and method for...

Details Decay resistant wooden railroad crosstie and method for... Decay resistant wooden railroad crosstie and method for...

B - Operations, Transporting

27

K

B27K 3/20 (2006.01) B27M 3/14 (2006.01)

Patent

CA 2520552

Protection of wooden articles, such as railroad crossties, against decay or rot is improved through incorporation of borate compounds, such as sodium borate, and a protective coating such as creosote or a resin. Such protection is achieved by placement of a dry borate compound into a hole formed in the wooden article. The hole is then covered, and the borate compound then permitted to migrate and become distributed throughout the wooden article to provide the desired protection. Coating of the thus treated wooden article is conducted either shortly following placement of the borate compound in the hole or at a later convenient time.

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