This circumstance led to experiments to ascertain the preservative nature of ... of various processes to impregnate wood with gas tar or its products. The first man whom we find engaged in the ...

Wood selection for preservative testing is often determined by the number ... high temperature and high humidity for a specified time period. Then, the corrosion products are cleaned from the metal ...

which represents 50% of the global market for wood preservatives, is estimated to be 79,000 tonnes 5. The new nano-copper preservatives compete with treatments that contain dissolved or complexed ...

The Pittsburgh Pirates and Koppers, a global leader in treated wood products and wood preservation technologies, collaborated ...