Where leaks start
Most leaks originate at the seal rather than through the film. Product contamination in the seal area, incorrect heat settings or a film change without revalidation all produce weak seals that open under pressure.
Keep the seal area clean
Any gel or moisture left on the sealing surface becomes a leak path. Control the fill level, wipe the seal zone, and inspect for residue before sealing. This single control prevents a large share of field failures.
Match heat settings to the film
Temperature, pressure and dwell time must suit the specific film. Too low gives a weak seal; too high can burn through or distort the film. Revalidate whenever the film supplier or material batch changes.
Verify before shipping
Sample each batch for a compression test and an inverted standing test, checking for seepage at the seal. Where packs face rough handling, add a drop test to reflect real distribution conditions.
About FLORPOLY: FLORPOLY supplies ice-pack grade super absorbent polymer in freeze-thaw resistant and food-contact grades, with 40 to 80 mesh granules and tailored uptake speed and gel strength. Batch test data, freeze-thaw cycling reports and OEM support are available. Contact FLORPOLY for a specification sheet, free sample or application advice.
Da maohua
Zhengzhou Flor New Materials Co., Ltd. specializes in SAP super‑absorbent polymer products. Serving personal hygiene, agriculture & horticulture, pet supplies and other industries, we leverage supply‑chain resources to provide particle‑size selection, performance matching and customized solutions based on clients’ practical requirements.
