Versaperm Vapour Permeability measurement

Seal Integrity Verification
Why Verify?

Defective seals cause consumer complaints and product rejection in food packaging. In electronic packaging, defective seals cause early failure and may be safety related. In medical packaging, biological contamination must be avoided. In most applications the seal needs to be strong enough to hold but gentle enough to allow easy access. Balancing these factors in a manufacturing environment requires careful measurement and tracking. Seal verification provides this essential data and is usually by non-destructive testing.

Seal Integrity Verification

The food packaging industry, in particular, depends on the integrity of the seal of the overwrap to preserve the quality of the products it produces.  The need for a reliable efficient way to test seal integrity is the direct result of the variables in package making equipment control settings and in film selection.

Do you now know exactly:

  •    What percent of the seals are effectively sealed?
  •    What is the peel strength of the seal?
  •    What dwell time and sealer jaw temperature gives these results?
  •    What seal strength range is the package capable of providing?
  •    What is the burst pressure of the package?
  •    How does the burst pressure compare to the peel strength? 
  •    How does the leak rate compare with the dwell and temperature?

Designed specifically for this application, our Gemco S.I.V. III meets the need to evaluate seam integrity in a production line environment through both leak and burst testing capability. 


Acceptable seal leakage parameters established by the user for each of the various food groupings being packaged are programmed into the machine.  The operator simply selects the food code for the packaged products being tested and closes the chamber door to initiate the test cycle.  Lights signal pass or fail at the conclusion of each test.  The machine will accurately test the seal of a product in a bag only or with the bag inside of a box.

Seal strength parameters are also pre-programmed into the test cycle.  Operator selection of the burst test mode automatically test the package to insure that it withstands a minimum force without bursting.  Optionally the operator can select a test cycle that will burst the seal to allow comparison testing.