While EVA hotmelts are an excellent solution for many industrial applications, the high temperature of the process needs to be carefully controlled to avoid smoke problems. When hot melt adhesives are heated, they inevitably release some fumes. That’s the smell detected when working close to the hot melt nozzle. While some smoke is normal, too much smoke indicates a problem with your process that needs attention.
Our team has seen examples of hot melt adhesive smoking and has some tips on how to make adjustments to reduce the amount of smoke.
Check the production process
To stop hot melt adhesive smoke, check your various hot melt process parameters:
Temperature: The temperature of the melt gun or gluing equipment is critical. When too low, the adhesive cannot melt and flow properly. Too hot and the adhesive will become too runny and it will give off a nasty and irritating fumes. In some cases, charred adhesive discolors the final glue and may also cause charring. Adjust the temperature settings based on the manufacturer’s settings for the fuser equipment and the manufacturer’s recommendations for the temperature of the specific glue you’re using.
Dispensing equipment and work area cleanliness: Adhesive residue near the dispensing equipment, applicator head and work area can cause melt problems and smoke. Adhesives that have burned and dried are more likely to smoke than fresh, unmelted hot melt adhesives. A common source of fumes is spent dry adhesive that builds up on application equipment.
At winlong hot melt adhesives, we can help you understand why your hot melt glue dispenser is smoking. Always make sure you follow the manufacturer’s guidelines for your gluing equipment, modules and hoses and the hot melt adhesive you use.
EVA hotmelts are suitable for a wide range of industrial applications, so get the most out of your system and avoid uncomfortable and annoying fumes.
