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Q. Flash Q. Sink Marks Q. Warpage Q. Weld Lines
Q. Short Shots Q. Silver Streak Q. Flow Mark Q. Jetting Mark
Q. Discoloration Q. Surface Blisters Q. Brittleness  
Q. Poor Surface Finish Q. Delamination Q. Burn Marks  

 
 
    Q. Burn Marks
    Machine/Pressure
    Related Causes		     Mold Related Causes   Resin Related Causes
  1. Decrease Cylinder Temperature
  2. Decrease Injection Speed
  3. Decrease Injection Pressure
  4. Decrease Back Pressure
  1. Increase Gate Size
  2. Add More Gas Vents
  

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