What makes it stick?

What makes it stick?  The world of stickers technically known as pressure sensitive labels.

Adhesives are not one adhesive that meets all needs.   We want to be able to successfully match the label material to the application.  We are going to need to know about the surface that the label is applied to, the temperature at the time of application and just what extremes the label is going to endure.  Will the labels be exposed to moisture or solvents?  Sometimes the application is basic, sometimes we need something a bit more information.  Adhesives are not all permanent in the wrong application.   Great advances have been made in adhesives which can be pretty aggressive yet be moved around on different surfaces.    Whatever the application, the fun is in the solution.