Ask Dr. Dave: We noticed that there are a lot of brown particle in the dispenser we use for hot-melt adhesives. What is it?
Examining char in hot-melt adhesives.
Question: In the dispenser we use for hot-melt adhesives, we noticed that there are a lot of brown particles in the adhesive when it is received in the head. What is happening? Can the formulation burn? The adhesive bond’s heat resistance is good.