Type of Defect:	Void (1/2)
Description:	Vacuumed area or air inclusion
Observation Method:	Visible with microscope
Recommendation Upon Observation:	Better visibility under polarized light / visible as bright speck
Other Evaluation Method:
Cause	Countermeasure
Unsuitable molding condition (caused by air inclusion)	Adjust back pressure (too low)
Unsuitable molding condition (caused by air inclusion)	Adjust screw rotation (too fast)
Unsuitable molding condition (caused by shrinkage)	see Sink Mark

Home   Site Map   Contact Us   Privacy Statement   Terms of Use
Company Profile   Products   Data Sheets   Product Selector   News   Technical Help   Applications

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