Everyone in his life glued or sealed something. In childhood, it was most likely football balls and cells of bicycles, and already in adulthood, construction and finishing materials were usually glued and glued. In principle, gluing something is quite a complex process that even has its own technology, which is spreading depending on the type of glued surfaces. In fact, in each case, gluing is based on the use of the adhesive, which is applied with a thin layer, on those surfaces that must be glued. There is nothing complicated here.
How to seal a hole: what to pay attention to