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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. Flow Mark
    Machine/Pressure
    Related Causes		     Mold Related Causes   Resin Related Causes
  1. Increase Cylinder Temperature
  2. Increase Injection Pressure
  3. Increase Injection Speed
  4. Increase Injection Hold Time
  5. Increase Nozzle Temperature
  1. Increase Mold Temperature
  2. Increase Gate Size
  3. Add More Gas Vents
  4. Uneven Mold Temperature
  1. Resin Contaminated

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