Adesione schiuma/lamiera nei pannelli sandwich. Una prestazione da tenere sotto controllo

Tests carried out in ITC on a series of polyurethane sandwich panels showed the great influence of the orientation of panels during manufacture with respect of the wrinkling stress. The adhesion between the insulation foam and the internal sheets of panels may depend on the production system which may privilege one face with the other, for this reason producers should regularly control this performance