Why does hot melt fail to bond corrugated?

There are many reasons why hot melt fails to bond corrugated paper substrates together.

Some of the reasons are as follow:

- In case erecting and sealing improper compression and substantial memory in the board can be the problem.

- During the winter months the temperature of the corrugated may be low enough to set the adhesive too fast.

- Very often the hot melt is the wrong product with the incorrect open time, set time and chemical makeup.

- The use of recycled paperboard can also present a challenge to the bonding process with hot melt adhesives.
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Why does hot melt fail to bond corrugated? - by Pierce Covert,
Glue Machinery Corporation
www.gluemachinery.com