Type of Defect:	Cold Slug
Description:	Type of Flow Mark caused by a particle of cooled (rigid) material
Observation Method:	Visible under polarized light / as a bright line in the flow direction.
Recommendation Upon Observation:
Other Evaluation Method:
Cause	Countermeasure
Cooled (rigid) material in the nozzle nozzle temperature is too low	Adjust nozzle temperature, too low
Remaining PC particle in the sprue	see Drooling and String

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