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*A small as .030″ (.75mm) in diameter.
When purging the first time with Purgex, it is recommended to use 1-1/2 to 2 barrel capacities of Purgex. When using Purgex on a regular basis, 1 to 1-1/2 barrel capacities is sufficient for efficient, effective cleaning.
Yes, Purgex grades are formulated for versatility and perform across a wide variety of resins, eliminating the need for multiple purging compounds.
Yes. Mixing nozzles, check rings, melt pumps, etc., have numerous small crevices where resin and colorant build up. Purgex has the capability to penetrate and clean those hard-to-reach areas.
Yes, all Purgex purging compound grades are recommended for use in hot runner systems with gates as small as .030” (.755mm).
Yes, Purgex purging compounds can be molded. This procedure is especially useful in certain circumstances such as larger parts with intricate areas, like speaker grilles.
Yes and no, depending on the particular situation. Because all commercial purging compounds contain ingredients in addition to resin, this question must be considered on a case-by-case basis.
Purgex purging compounds can safely be used to clean melt pumps and extrusion dies with at least a 1-inch wide opening.
The term “rinse” is used to describe the process of removing Purgex from the machine, hot runner system, die, etc., with the next resin.
Yes, Purgex is recommended for machine shutdown to help make start up faster, more efficient, and less problematic.
The carrier resin used in most Purgex grades is virgin polyethylene.