Antiblocking properties are crucial in plastic films for flexible packaging and industrial applications. This is because plastic layers tend to stick together and can cause blocking. To avoid this, an anti-blocking agent is added to create space between two plastic layers. Multilayer structure films mostly use anti-blocking agents since they offer the highest benefit. Blocking is mainly associated with polyethylene and polypropylene films. It is less of an issue in extrusion-coated or laminated products.