To be effective also for the protection of the boards toxicants used for the storage of bagasse must be stable during
the production process and not influence the gluing or reduce the quality of the board. Therefore 19 of the chemicals tested above and others were investigated regarding their suitability for preventing fungal attack of the boards. Furthermore board-samples of 400 x 400 x 19 mm were prepared with urea resin glue mixed with the preservative and tested regarding their bending strenght and internal bond as well as mould resistance. The results indicate that 5 preparations are effective in preventing mould without reducing the quality of the boards.
They were also suitable for the storage of bagasse. However, higher concentrations are necessary for the protection of boards than for bagasse. Finally it should be emphasized that by applying preservatives for the storage of bagasse and the protection of the boards the possible influences on the environment have also to be considered.