Wood Preservation
This Canadian industry comprises establishments primarily engaged in treating lumber, plywood, poles and similar wood products, produced in other establishments, with preservatives to prevent decay and to protect against fire and insects. Establishments primarily engaged in cutting to size and treating poles, pilings, posts and similar roundwood products are included. Pressure treating is the most common method used. Some common preservatives are water-borne inorganic compounds, such as chromated copper arsenate and creosote.
