Ultra Purge™ speeds up color changes and removes carbon

Chem-Trend’s Ultra Purge™ PO extracts the material residues that can build-up in hot runner systems and cause hang up spots in injection molded parts weeks after a color change.

A recent trial demonstrated that Ultra Purge™ PO purging compound can also pull carbon chunks from injection molders’ hot runner systems. Industry experts from Chem-Trend, a developer of release agents, mold maintenance products and purging compounds, indicate that switching to Ultra Purge™ can boost efficiency in industrial packaging injection molding processes and reduce costs.

When a large injection molding business reported hang ups after color changes in bucket production runs, the hot runner supplier recommended using Ultra Purge™. At the bucket manufacturer’s site, Chem-Trend’s European Sales Manager for Ultra Purge™ Graziano Pestarino observed that using Ultra Purge™ PO cut production downtime and scrap by half compared to the purge compound used previously.

Pestarino said, “The trials with Ultra Purge™ PO showed chunks of carbon being pulled from the hot runners. As for the color change, Ultra Purge™ PO was not only pulling out the red from the previous production run but also an old color that had been used two weeks prior. While the screw and barrel cleaning provided by the bucket manufacturer’s previous purge compound had been adequate, it was failing to purge the hot runner systems. That lingering contamination is what led to excessive downtime and scrappage.”

It was noted that the bucket manufacturer had also been using double the purge compound dosage needed. So switching to Ultra Purge™ PO, which also cleans the screw and barrel, was more economical.

Chem-Trend has invested extensively in R&D to develop grades of Ultra Purge™ that are compatible with a wide range of hot runner technologies supplied by the world’s leading hot runner systems manufacturers.