Troubleshooting to common hot melt adhesive and equipment problems.
PROBLEM: POP OPENS
POSSIBLE CAUSES:
- Insufficient Glue Amount
- Temperature Too Low
SUGGESTED SOLUTIONS:
- Increase Pressure or Nozzle Size
- Increase Temperature
PROBLEM: SMOKE
POSSIBLE CAUSES:
- Temperature of Adhesive Too High
- Excessive Esxposure to Air
SUGGESTED SOLUTIONS:
- Remove Temperature
- Keep Pot Covered at All Times
PROBLEM: SPLASHING FROM SUBSTRATE
POSSIBLE CAUSES:
- Temperature of Adhesive Too High
- Air Pressure Too High
- Incorrect Nozzle Position
SUGGESTED SOLUTIONS:
- Lower Temperature
- Lower Air Pressure
- Change Angle of Nozzle
PROBLEM: CHARRING OR GELLING OF ADHESIVE IN RESERVOIR
POSSIBLE CAUSES:
- Temperature Too High
- Overheating Reservoir Walls
- Faulty Heating Control
- Oxidation of Adhesive
- Incompatible Adhesives
SUGGESTED SOLUTIONS:
- Lower Reservoir Temperature
- Keep Reservoir Full of Adhesive
- Check Control & Replace if Necessary
- Maintain Level of Adhesive in Reservoir. Keep Reservoir Covered With Adhesive. Nitrogen Blanket May be Necessary
- Change Adhesive, May Have to Flush System with Neutral Material
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