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. Short Shots     Machine/Pressure     Related Causes     Mold Related Causes   Resin Related Causes Increase Injection Pressure Increase Cylinder Temperature Increase Feed Setting Increase Injection Speed Increase Back Pressure Decrease Gate Land Area Use Larger Opening in Nozzle Increase Runner, Gate or Sprue Size Add More Gas Vents Change Gate Location Increase Mold Temperature Resin Overdried