Anatomy of a Label
Acrylic adhesives are synthetic and are created to stick to a wide spectrum of surfaces and have a good adhesion to polar surfaces such as metals, glass and polyesters. These adhesives are great for surfaces that will encounter wet, rigid and/or uncertain conditions, and they are noted for long-term bonding and UV resistance in outdoor applications. They may have higher initial costs but offer superior durability.
Rubber-based adhesives are widely used for short-term general purpose indoor applications because of their instant bonding to many non-polar, low surface energy materials, but they are a little less versatile. They are the most cost-effective of the two options, but if your product encounters humidity or extreme temperatures, this adhesive will break down over time. If the print head is too hot, the rubber-based adhesive may also ooze as it goes through the print head and cause a sticky mess inside the machine.