Problem & Solution

Practical answers to common plastic material challenges

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HDPE film bubbles and pinholes

Material Drying HDPE; film; bubble; pinhole; moisture; drying

HDPE injection molded product strength decline

Strength decline with normal appearance = a material history problem.

Material Drying HDPE; strength; regrind; degradation; weld line

HDPE injection molded product bubbles

First distinguish vacuum bubbles from air bubbles.

Material Drying HDPE; '2079851475616104452; bubbles; vacuum bubbles; regrind

HDPE '2079851475616104457 parison bubbles

For parison bubbles, check water first, then wear and regrind.

Material Drying HDPE; '2079851475616104457; bubbles; moisture; screw wear

HDPE '2079851475616104457 parison streaks

Streaks are investigated along three lines: pressure, regrind, and moisture.

Material Drying HDPE; '2079851475616104457; streaks; back pressure; moisture

EVA adhesive film moisture absorption during storage

Material Drying EVA; adhesive film; moisture absorption; storage; bubbles; inventory

EVA Photovoltaic Film Bubbles

Material Drying EVA; photovoltaic film; bubble; lamination; vacuum; moisture absorption

COC '2079851475616104452 Defects

Material Drying COC; '2079851475616104452 defect; temperature; speed; pressure; drying

COC Packaging Insufficient Barrier Property

Material Drying COC; barrier property; packaging; oxygen; multilayer; shelf life

COC Moisture Absorption Management Misunderstanding

Material Drying COC; moisture absorption; drying; silver streak; storage; management

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