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Dyna-Purge Engineered New Hybrid Dyna-Purge® A for PP Color Changes

Published on 2016-06-27. Author : SpecialChem

Hybrid Purging

The Dyna-Purge® has introduced Dyna-Purge® A, a breakthrough technology engineered for Polypropylene (PP) color changes. Dyna-Purge® A combines key features of both mechanical and chemical purging products, with advanced ingredients reaching all stagnation areas breaking down the color contamination.

Dyna-Purge® A - Hybrid Purging Compound

According to Tim Cutler, Dyna-Purge® Vice President, the company commissioned Penn State Erie, The Behrend College, of Erie, PA to conduct an extensive independent study on Dyna-Purge® A in March 2016, at the Burke Center - School of Engineering. The study compared commercial purging compounds and an in-house resin to Dyna-Purge® A. In purging and post purge results, only hybrid Dyna-Purge® A left the injecting molding machine clean and free of contamination.

Fig. 1: Dyna-Purge®

"The independent study on Dyna-Purge® A demonstrates that it is more effective than mechanical (abrasive), chemical purging compounds and in-house resins for purging during Polypropylene color changes," Cutler explained. "Dyna-Purge® A saves time and money as it lowers purging costs and scrap rates."

In testing, the purging process successfully transitioned from black to natural PP in only seven shots using Dyna-Purge® A. The hybrid purging compound is engineered to exit the machine with the next production resin, leaving behind no residual purging compound. It is versatile for a variety of applications including hot runners, profile, sheet and cast film, with no minimum clearances. Dyna-Purge® A, unlike most chemical purging compounds, is very easy to use, with no soaking or temperature alterations required, no noxious fumes and odors, and no residual left behind. Furthermore, ingredients are safe and non-hazardous.

About Dyna-Purge®

Dyna-Purge® is the division of Shuman Plastics, Inc., Depew (Buffalo), NY, USA. Dyna-Purge is among the leading suppliers of non-chemical, non-abrasive purging compounds, formulated for safe and effective cleaning, and is a clear choice over in-house plastic resins, regrinds or other commercial products.

Source: Dyna-Purge®

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