Type of Defect:  Silver streak

Cause	Countermeasure
Unsuitable cylinder temperature	Lower the cylinder temperature
Long detention time	Eliminate retention
Unsuitable injection speed	Slow injection speed
Unsuitable gate dimension	Enlarge the gate size
Insufficient pellet drying	Perform predrying as recommended
Unsuitable injection pressure	Reduce injection pressure

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Teijin Kasei America, Inc.
Tel: (770) 346-8949