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Kenplas Forum ==> Trouble Shooting -- PET Preform Injection Molding ==> Milky Preform Bottom (Crystallinity)
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1. Reduce heat transfer from hot manifold to caivty bottom;
2. Increase temperature setting of nozzle heater (inapplicable for hot plate mold);
3. Increase melting temperature of PET resin in barrel;
4. Speed up injection;
5. Reduce holding pressure;
6. Reduce cooling water flow.

Fine
9
 Poor
4
 2/15/2006 11:07:02 AM By Kenplas
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