Four corner seals give a genuinely rigid pack that holds its square under heavy fills.
A quad seal bag adds two corner seals to the side gusset, which locks the sides out and produces a rigid rectangular pack. It resists bulging under 10 kg and 20 kg fills where a stand-up pouch would round out, and the flat sides stack tightly without wasted pallet space.
That rigidity costs a little film and a heavier seal pattern, so we balance seal width against fill weight rather than using one spec for every size. For very heavy fills we also add a reinforced base gusset.
| Common sizes | 2 kg – 20 kg (4.5 lb – 44 lb) |
| Typical structures | PET/VMPET/PE, PET/AL/PE, mono-PE |
| Corner seals | Typically 8–15 mm, sized to fill weight |
| Gravure up to 9 colours; digital for short runs | |
| MOQ | 3,000 pcs (digital) / 10,000 pcs (gravure) |
| Lead time | 15–25 days after artwork approval |
Choose quad seal when the fill is heavy enough that a flat-bottom pouch rounds out, or when pallet cube efficiency matters more than printable panel area.
Yes — patch or die-cut handles are common from 10 kg upward, and we load-test the handle before production.
Usually a similar gauge; the rigidity comes from the seal geometry rather than thickness. We confirm with a fill test.
Send your size, material and quantity — we reply within one business day.
Other formats: Stand Up Pouches · Flat Bottom Bags · Side Gusset Bags · Spout Pouches · Retort Pouches · Window Bags · Kraft Paper Bags · Mono-Material · Compostable · Green & Recyclable · High Barrier · Resealable Zipper · Treat Packaging · Bulk Bags · Sample Packs · Custom Printing
