Industrial glue sticks
are highly specialized, depending on the material you want to glue.
Read carefully the specifications of each type of adhesive, according to the application you want to solve.
At room temperature, hot melt glue sticks are in solid form and as they are applied to the surface of a material they turn into molten form.
When cooled to a temperature below its melting point, hot melt glue results in a strong bond that is guaranteed to last. In fact, hot glue is as permanent as epoxy glue and it is suitable in applications where epoxy is not.
Consequently, it is important to note that hot melt adhesives should not be used to glue something that you may want to remove later on.