From beech lamellaes and four different adhesives (MUF, PUR, EPI and PUR in combination with a primer) we made twelve 4 layered, glued laminated beams (three of each). From these beams we made test specimens for shear test and delamination test. We had to follow different technological parameters for each adhesive, according to the manufacturer's instructions. Shear strenght of adhesives bonds and resistance to delamination, we checked in accordance with SIST EN 14080 : 2013 standard. In the delamination test, we were measuring oppeness of the adhesive bonds, after immersion in water and drying, while in the shear test, we were measuring a maximum breaking force of the test specimens. We have discovered, that in the delamination test, we get the best results with MUF and PUR + primer adhesives. Bonds, made with only PUR adhesive and bonds with EPI adhesive did not meet requirements of the standard. In shear test, all the adhesives that we have used were suitable, however the best results were again with MUF and PUR + primer adhesives.
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