Flow Wrap vs Overwrap Packaging—and When to Use Which Method

Flow wrapping, also known as horizontal bagging, fin-seal wrapping, pillow-pouch wrapping, or crimp-seal wrapping, is a horizontal-motion packaging procedure wherein a product (or a sample product and leaflet) is wrapped in transparent or printed polyethylene (PE), polypropylene (PP) or polyethylene terephthalate (PET) packaging. The finished product features a crimped seal on each end.

Flow wrapping is typically used in the food and beverage and pharmaceutical industries to package products like soap, lotion, and candy bars. Flow wrap packaging is ideal for companies wanting to distribute samples of their products in sealed packaging, along with additional information (like a literature card).