#$%^&*AU2015101142A420151001.pdf#####Abstract According to the present invention there is provided treated wood or engineered wood products, when treated by a method which comprises applying to the substrate a preservative formulation comprising: at least one preservative in a carrier system comprising one or more low aromatic, or substantially low aromatic solvents. The invention also provides for a wood preservative formulation comprising such a carrier. In an embodiment, the carrier is selected from the commercially-available range of Exxsol@ D and Isopar@ fluids.