Impregnation of wood materials, to resist weather effects, immerses the material in a prepared solution together with ultrasonic pressures from a sonotrode

摘要

To impregnate a material, wholly or partially of wood, the wood is immersed in a solution containing 0.1-2.0% 3-iod-2-propinyl butyl carbamate, 3% copper sulfate and 2% boric acid. At the same time, pressures are applied to the solution by ultrasonics from a sonotrode, at least at 500 W and with a pressure of at least 1.5 bar for at least 30 minutes and for a maximum of 10 hours The material for impregnation can be of spruce, fir, pine, beech or a mixture of woods.