Pressure-sensitive adhesives

Pressure-sensitive adhesives (PSAs) are types of sticky materials that bond to surfaces with gentle pressure, without needing heat or solvents. They are designed to stick upon application and can be removed or repositioned without leaving significant residue. Common examples include masking tape, Post-it notes, and certain labels. PSAs work thanks to their unique molecular properties, allowing them to form a temporary or permanent bond that can be adjusted based on pressure. They are widely used in manufacturing, packaging, and everyday items due to their ease of use and reliable adhesion at room temperature.