Continuous band sealer Continuous band sealers can seal almost any size or length of the bag or stand-up pouch. They're made to seal thermoplastic materials like polyethylene, plastic-lined foil bags, gusseted bags, pillow-type bags, and barrier bags. Some sealers allow you to adjust the height or width to accommodate different bag sizes. Coffee, snacks, cookies, cereals, candy, chocolates, cannabis, dried fruit, pre-baked goods, cake mixes, grains, pasta, flour, MREs, peanuts, almonds, cashews, and other food products can be sealed using vertical continuous band sealers. They are also useful for sealing agricultural products such as cattle feed, pet food, bird seed, and hemp, as well as chemical powders, mortars, dyes, pharmaceuticals, and other items.