Wolman > Wood preservation > Treatment of constructional timber > Products. Products for non-pressure processes. For brushing, spraying or dipping, fixating or non-fixating, colourless or pigmented – Wolman products leave nothing to be desired. Wolsit® EC. Wolsit EC preservatives are water-soluble concentrates, based .
For most treated wood, preservatives are applied in special facilities using pressure.. In those cases, preservatives can be applied using methods that do not involve pressure vessels.. These have since been used successfully on utility poles, timbers, millwork , and a variety of other wood products.
Although wood material has many advantages with its unique properties compared with other materials, there are three deficiencies limiting its use:. Since creosote gives off odours tainting foods and the volatile fractions are poisonous to plants, creosoted timber is not normally used in food containers and seed boxes.
Apart from structural wood preservation measures, there are a number of different preservatives and processes that can extend the life of wood, timber, wood structures or engineered wood. These generally increase the durability and .
15 Aug 2017. Advantages of the pressure treatment over the non-pressure processes are: Deep, uniform penetration; Better control over retention; Wood can be pre-conditioned in the treatment chamber; Faster and more reliable process; More easily controlled and regulated. The effectiveness of a wood preservative .