Glues especially wood glues are used for the gluing of scantlings, HPL- and VPL-panels as well as various other applications. There are respective glues for the different applications which have to meet the requirements. In this connection the glues differentiate themselves in one- or two-component glues as well as hot melts. Furthermore there are so-called casein glues and urea resin glues which all have different properties. Additionally the differentiation between D2, D3 and D4 glues is important because they are confronted with alternative demands. There are prescribed tests which tests appointed properties, whereby glues aren't convenient for every application.