Add Überkoll Attivatore to the adhesive in a proportion of 4% to 7% by weight, that is, 4 to 7 parts of activator per 100 parts of adhesive (by weight). The activator + adhesive mixture should be prepared shortly before application. Prepare only the quantity of adhesive-activator mixture needed for immediate use. The mixture must in fact be used within its pot life, generally a few hours. At the end of the pot life, the adhesive becomes difficult to work and its viscosity increases rapidly until it becomes a gel. Store at room temperature in a dry, indoor place, in the original packaging.