Gluing — Sticking With Direct Mail

Unfortunately, there are some significant drawbacks with cold applied glue. First, it has to be run through hot dryers, which frequently causes excessive paper curling and cracking. Second, cold adhesives tend to be thicker at the beginning of the glue strip. Sometimes this thick buildup takes longer to dry and forces operators to choose between having either brittle paper or semi-wet remoist glue that may stick to neighboring sheets. And third, a potential fire hazard is created when conveyors stop running, if there is any paper in the oven.