Defining pulse sealing parameters.

Pulse sealing works best when small packets of heat are allowed to penetrate layers of materials to be sealed.  All standard programming includes four pulse sealing parameters.  So, for a rather lightweight vinyl material, by example, and example setting could be:

Pulse Time 1 = 2.5 seconds
Pulse Width 1 = 1.5 seconds
Pulse Time 2 = 2 seconds
Pulse Width 2 = 4 seconds

For a heavier vinyl material, values could be:

Pulse Time 1 = 3 seconds
Pulse Width 1 = 2 seconds
Pulse Time 2 = 3 seconds
Pulse Width 2 = 6 seconds

If the heat sealed material seems to pull apart when the upper sealing bar completes the seal, then that could mean that the Pulse Width 2 was too short.  Adding more time to Pulse Width 2 will fix that problem.  If time permits, often an ideal setting for Pulse Width 2 is equal to the sum of Pulse Time 1, Pulse Width 1 and Pulse Time 2. 

For seals made with Novaseal’s specially formulated Sealing Tape, parameters could be:

Pulse Time 1 = 2 seconds
Pulse Width 1 = 2 seconds
Pulse Time 2 = 1.5 seconds
Pulse Width 2 = 4 seconds

One of the outstanding features of Pulse Sealing is the fact that similar materials will use the same sealing parameters.  Similar could mean all lightweight materials, or all vinyls, or all materials using sealing tape.  Determining the best sealing parameters will take some experimentation.