Now that we’re in the middle of winter, it seems like an appropriate time to look at how low temperatures affect the performance of pressure-sensitive adhesives (PSAs). A quick refresher: PSAs are the glue substance you would find on products like: Post-it notes Self-adhesive envelopes Bandages Price labels Tapes Packaging Lastly, PSAs are visco-elastic polymers.
Adhesives come in a variety of chemistries and forms, and each has unique features that are formulated to solve a particular problem or need. Science has allowed for engineering very specific adhesives, and they tend to come in polar opposites: solvent or acrylic, clear or pigmented, removable or permanent. It’s also possible to have an
Adhesives are typically composed of polymers. This means that their viscoelastic natures, what makes them sticky and stretchy, are constantly affected by any changes in temperature. This effect changes depending on whether the adhesive is plastic or resin based. Since there is such a varying degree of how temperature effects each type of adhesive, some