Reduce Energy Consumption by 36 percent

Testing proves that dispensing low application temperature (LAT) hot melt adhesive with the InvisiPac HM10 means more efficient cardboard packaging.

Precisely, how much energy can be saved when dispensing a high performance low application temperature (LAT) hot melt adhesive with the InvisiPac® HM10 melt-on-demand system?

An adhesives solutions company asked the packaging experts at Graco's Customer and Innovation Center in Maasmechelen, Belgium, to find out.

Their comparison of lower and standard temperature applications showed a 36 percent savings on energy costs. Let’s have a closer look at the lab test setup, process, and results.

Equipment and Application Setup


The tests used the InvisiPac HM10 Tank-Free™ melter with on-board hopper to compare low and standard temperature hot melt adhesives.

  • For the low temperature adhesive, temperature settings for the melter, hose, and gun were 110° Celsius (230° Fahrenheit).
  • The tests for the standard temperature adhesive application were carried out at 160° C (320° F). 

The hot melt adhesive consumption was ~ 1,7kg/h.

Startup and Production Testing

Application lab engineers monitored how much energy it took to heat up the hot melt adhesive to the right temperature and keep it at the right temperature throughout production.

Heating Up Hot Melt Adhesive

How much energy was consumed to get the adhesive ready to be dispensed? And how much time did it take? 

This comparison shows you can save up to 39 percent on your energy bill during the start-up phase. On top of that, your system can start operating 5 minutes faster.

 Standard temperature adhesiveLow application temperature (LAT) adhesive
Energy consumption440 Wh270 Wh
Start-up time13 minutes8 minutes

Maintaining the Perfect Temperature

The production phase focused on how much energy it took to maintain the adhesive at the perfect operating temperature.

In the energy consumption graph below, the vertical axis shows watt-hour (Wh), the number of energy units used in an hour. The horizontal axis shows the number of minutes needed to keep the adhesive at the right temperature.

Graph shows energy consumption test results. The vertical axis is the amount of Wh. The horizontal axis shows the number of minutes.  The light blue line represents the standard temperature adhesive. The dark blue one shows the results for Kizen™ COOL 3.0, dispensed at a low temperature.

The production testing results in the graph above, show a 36 percent total energy savings

  • The dark blue line shows that the low application temperature (LAT) hot melt adhesive clearly outperforms standard temperature adhesive. Where the light blue line keeps climbing at the same pace, the dark line rises less rapidly.  
  • At around the hour mark, it takes up to 800 Wh to maintain the standard temperature adhesive at the right temperature. In contrast, the LAT adhesive remains below the 600 Wh mark.


What Does This Mean for Your Cardboard Packaging?

In short, if you are still dispensing a non-LAT-adhesive or using a tank-based hot melt system, you are losing time and money.

By switching to InvisiPac Tank-Free™ hot melt delivery, you can save up to more than one-third on energy, lowering energy bills and reducing your packaging line's carbon footprint.

For a more detailed look into the hot melt adhesive testing setup or results, fill out the form below.


Reduce Energy Consumption by 36 Percent

Contact a Packaging Expert

Please enter a value
Please enter a value
Please select
Your email address is required
Please enter a value
Please enter a value

All trademarks and registered trademarks are the property of their respective owners.

Have Questions? Let's Talk.

Call Support

Call Support

7:30 a.m.–5 p.m. Central Time

Email Support

Email Support

Find a Distributor

Find a Distributor

For local sales and service support