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Ensinger PEI

Dyna-Purge® K Purging Compound
Categories: Polymer; Thermoplastic; Purging Compound

Material Notes: Designed or a broad range of "Low-Temp" resins

General Description:

DYNA-PURGE K is a low-temp, non-abrasive, non-chemical “engineered” thermoplastic purging compound, formulated to flow naturally through the barrel and hot runner system of the injection molding machine, as well as extrusion equipment. A non-melting but softening thermoplastic scrubs the screw and barrel, while the carrier matrix flushes away impurities.

FEATURES & BENEFITS OF DYNA-PURGE K

  • Developed for color changes, resin changes, preventative machine maintenance, and before manual cleaning
  • Excellent for purging through hot runner systems with a minimum clearance of .025 inch (.65 mm)
  • Effective through a wide temperature range 290°F to 550° F (143°C to 287°C)
  • Easy to use – no process adjustment necessary – use at the resident resin processing temperature and RPM speed
  • Non-abrasive, non-melting but softening thermoplastic, which thoroughly loosens carbonized and degraded resin, allowing it to be flushed out of the system
  • Safe, non-hazardous, with no chemicals – ingredients are FDA compliant
  • Heat stable – recommended during shutdown and start-up
  • Low “cost-per-purge” – only small quantity needed to be effective
  • No mixing required – simply use “as is”
  • Unlimited shelf life

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Processing PropertiesMetricEnglishComments
Processing Temperature 143 - 287 °C289 - 549 °FInjection
 143 - 287 °C289 - 549 °FExtrusion
 
Compliance PropertiesMetricEnglishComments
FDA YesYes
 
Descriptive Properties
Amount of Purge (Extrusion)Approx. 10 lbs per diameter inch of screwL:D dependant
Amount of Purge (Injection)Approx. 2 lbs per diameter inch of screw
Minimum Orifice (Extrusion).025in, .65mmDie
Minimum Orifice (Injection).025in, .65mmNozzle
Screen Packs or other flow restrictions (Ext.)Combination of 20, 40, 60 or 80 mesh; 100 or more, use SF or F
Screen Packs or other flow restrictions (Inj.)Must have minimum clearance of .025in (.65mm)
Types of ResinsPP, TPE, TPO, TPR & other low temperature resins

Some of the values displayed above may have been converted from their original units and/or rounded in order to display the information in a consistent format. Users requiring more precise data for scientific or engineering calculations can click on the property value to see the original value as well as raw conversions to equivalent units. We advise that you only use the original value or one of its raw conversions in your calculations to minimize rounding error. We also ask that you refer to MatWeb's terms of use regarding this information. Click here to view all the property values for this datasheet as they were originally entered into MatWeb.

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