Influence of micro structured surface on the bond quality of hardwood

The state of the art requires a closed waiting time of about one hour for the beech glulam production. This has a negative influence on the production costs. Micro structured surfaces showed good performance in combination with coatings. The authors have performed tension-shear and delaminating test in order to investigate the influence of micro structured surfaces on the bond quality of hardwoods. The results are very promising and show clearly improved delaminat-ing resistance for all tested adhesive. No closed waiting time was needed to achieve satisfying results using MUF in combi-nation with beech.