With the increasingly fierce industry competition, protective film manufacturers aim to effectively control costs by reducing the coating thickness (amount) of adhesive while ensuring adhesion performance and reliability. On the other hand, pressure-sensitive adhesives (PSAs) are required to be applied to more surfaces of difficult-to-bond materials, such as anti-fingerprint screens. (Anti-fingerprint technology involves coating a fluorine-containing coating with extremely low surface tension on glass coverslips, endowing them with properties like hydrophobicity, oleophobicity, scratch resistance, fingerprint resistance, and a smooth tactile feel.) These developments have imposed higher requirements on the performance of pressure-sensitive adhesives.