Shear adhesion, or holding power, is one of the most important pressure sensitive adhesives (PSA) performances. Shear adhesion is the ability of a tape to resist the static forces applied in the same plane as the backing. It is usually expressed in time required for a given weight to cause a given amount of tape to come loose from a vertical panel.

What is the determining molecular parameter that can significantly affect shear adhesion? Most adhesion researchers propose that Me (Molecular weight between two entanglements) is the controlling factor of shear adhesion. In practice, it is found that all the following parameters can affect shear adhesion to certain extent… Read Article >>

Shear Adhesion of Pressure Sensitive Adhesives
- by Pierce Covert, Glue Machinery Corporation