Quad Bags are securely sealed on all four sides of the pouch. Quad sealed gusseted bags are used to package those heavier in weight products as the sealing of all four sides of the pouch ensures extra strength.
A quad-seal style has seals off to the four corners of the bag. This gives the bag a reinforced structure and helps the filled bag hold its shape better on the shelf. With the absence of a back seal you can enjoy uninterrupted front and back panels for greater flexibility on valve and label placements.