Technical Support Testing method

All zippers of PROSEAL^®, AQUASEAL^® and FLEXSEAL^® are individually pressure tested for leaks prior to shipment.
No air bubbles coming up for periods* will ensure to pass the test.

* For example, no air bubbles for 20 seconds will guarantee 0.3bar for No.10 AQUASEAL^®.
Water tightness performance differs depending on zipper type and size.
Please visit each product information page for detail.