When choosing between hot melt adhesives and water based adhesives, it’s difficult to know which one would work best. They both have many advantages, and based on your gluing needs, some potential challenges.
So how do you know which is right for you?
One way to tell is by looking at the substrates.
For starters, the substrate’s porosity is a key factor in determine the type of chemistry required.
Porous examples include Kraft, SBS, and chipboard while non-porous examples include film, foil, and any barrier coating.
Additionally, having substrates that are treated ensures a better bond. This allows for you to use a less aggressive product. In turn, this costs less and has better clean up.
There are three types of treatment: flame, corona, and plasma.
Flame Treatment induces an ionized air stream that alters the surface of the substrate. The oxygen becomes reactive by the high treatment temp.
Corona treatment involves voltage buildup which ionizes the air in the air gap thus increasing the surface tension.
And plasma treatment deposits functional chemical groups that enhances adhesion.
As you can tell, there’s a lot that goes into deciding which adhesive to use.
If you have any questions, contact us here or give us a call today at 1-800-352-0012