Impulse Sealing vs. Direct Heat Sealing – Your Questions Answered

We often get this question:  What is the difference between impulse sealing and direct heat sealing and how do I choose??

Impulse sealers – require no warm up time and seal by applying a pulse of energy to the sealing  area, followed immediately by cooling.  Impulse sealers only use power when the jaw is lowered.  **So if you are just sealing your every day poly bags, an impulse sealer will do the trick.**

a 5mm impulse sealer will do the trick for this poly bag

Direct heat sealers (constant heat) – maintain constant heat in both jaws.  Direct heat sealers use power as long as the machine is turned on.  As a result, direct heat sealers possess better heat penetration in order to seal thicker materials.   **If you are sealing thicker materials such as kraft paper or anything with gussets, go with a direct heat sealer.**

Gusset bags require direct heat sealers

Use our handy little chart to help you make a decision but if you still are unsure, please contact us or one of our distributors for assistance!