PT ZONE: Blow Molding

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Contraction Accelerates Slightly

Third dip in four months.

Second Contraction in Three Months

Slowdown among small-to-mid-size processors drags index down.

Here's Another Process for Foam Blow Molding

After two years of behind-the-scenes development, a new process for lightweight bottles emerges into the open.

BLOW MOLDING: Monitor & Control PET Bottle Crystallinity & Barrier Properties

New QC functions predict shelf-life performance and help optimize physical properties based on crystallinity/orientation.

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M&A expert offers tips for processors looking to make a big buy.

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Blow Molding


In blow molding, material is melted then formed to create a hollow part. There are various types of blow molding: extrusion blow molding; injection blow molding; and stretch blow molding. Blow molded products can be broadly classified into packaging (such as soda bottles) or industrial (like fuel tanks).

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» Purging Compound

Sooner or later you will need to purge your machine. Which material should you use to purge your screw and barrel?

Product Announcements

BLOW MOLDING: Monitor & Control PET Bottle Crystallinity & Barrier Properties
BLOW MOLDING: New Leak Tester and Economical Takeout/ Deflasher
Proco Machinery Inc. 6/1/2015
CONTROLS & DRIVES: Slew of Control Packages For All Processors
Siemens Industry Inc., Solutions, Automation & Drive Technologies 5/18/2015
PURGING: Device Makes Purging Safer, Simpler
Dyna-Purge, Div. of Shuman Plastics, Inc. 4/28/2015
BLOW MOLDING: All-Electrics Debut in North America
Hamilton Plastic Systems Limited 3/31/2015

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Paratherm Corp.
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