Depew, N.Y. — The Dyna-Purge division of Shuman Plastics Inc. has introduced a hybrid purging compound for polypropylene color changes.
Dyna-Purge A that combines key features of both mechanical and chemical products.
According to the Depew-based company, the products reaches all stagnation areas, breaking down color contamination.
The company commissioned Penn State Erie to compare the material with other commercial purging compounds. In testing, the purging process transitioned from black to natural PP in seven shots using Dyna-Purge A.
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