In-House Plastic Resins The large volume of resin needed to displace the resident material results in a substantial loss in production time. Resin may “displace” resident material, but will not “clean.”

In-House Plastic Resins Some virgin resins are hygroscopic and will need to be dried before using. Reground resin loses some of its properties when initially processed and also, must be ground, stored and set aside for purging. Temperature and RPM settings may need to be adjusted to enhance the viscosity of the resin to be effective.

In-House Plastic Resins Generally 4 times the capacity of the complete machine is needed – more in most cases.

In-House Plastic Resins are designed for processing – not purging and cleaning.

In-House Plastic Resins filled with glass or minerals are abrasive to your equipment. Through repeated use, filled resins may cause pitting, wear, change to machine tolerance, or other damage. Few resins have start-up temperature stability. Incorrect shutdown procedures will result in decomposition and carbon buildup. Some resins may not be FDA compliant and may produce irritating or offensive fumes.

Chemical Purge Products Most chemical purging products require soaking in the barrel to allow the chemical reaction to occur.  Soaking time means lost productivity. Also, chemical products are formulated to alter the viscosity of the resident material to allow it to flow out of the machine; less viscous products will not remove carbonized material.

Chemical Purge Products Many chemical products are concentrates that require accurate measurement and letdown into a carrier resin. These products must be evenly dispersed and blended to be effective.  This adds complexity and room for error. It also adds time and reduces overall productivity. Some chemical products require adjustments to the temperature and RPM settings. These changes can lead to additional downtime.

Chemical Purge Products Concentrated chemical products require mixing with a carrier, adding a “hidden cost.” Accurate measurement of the concentrate is required. Too much increases the cost without improving the performance. Too little may give poor results. Time wasted by measuring, mixing and blending means lost productivity. Chemical products have a limited shelf life and may expire; liquid concentrates may evaporate/dry or cake.

Chemical Purge Products “One product fits all” solutions cannot deliver optimal results.

Chemical Purge Products Some chemical products have active chemical ingredients that may react with some resins to release noxious fumes or with the metal surface in the barrel and screw causing staining, pitting or other damage. Some chemical products may require special handling for disposal. Some chemical products are not heat stable or safe to be left in the barrel for shutdown. Incorrect shutdown procedures will result in carbon buildup at start-up. Some chemical products may not be FDA compliant and may produce irritating or offensive fumes.

Mechanical Purge Products Some mechanical purging products incorporate chemical additives. These types of mechanical products require soaking in the barrel to allow the chemical reaction to occur. The soaking period means lost productivity.

Mechanical Purge Products Some mechanical products are concentrates that need to be let down into a carrier resin. These products must be evenly dispersed and blended manually to be effective.  This adds complexity and room for error. It also adds time and reduces overall productivity. Some mechanical products require adjustments to the temperature and RPM settings. Such changes can lead to varying results.

Mechanical Purge Products Concentrated mechanical products require mixing with a carrier, adding a “hidden cost.” Accurate measurement of the concentrate is required. Too much increases the cost without improving the performance. Too little may give poor results. Time wasted by measuring, mixing and blending means lost productivity.Concentrated mechanical products require mixing with a carrier, adding a “hidden cost.” Accurate measurement of the concentrate is required. Too much increases the cost without improving the performance. Too little may give poor results. Time wasted by measuring, mixing and blending means lost productivity.

Mechanical Purge Products “One product fits all” solutions cannot deliver optimal results.

Mechanical Purge Products Chemical ingredients in some mechanical products may cause metal surface damage, such as staining or pitting. Other mechanical products are filled with glass, calcium or other inert ingredients that may cause wear and change in machine tolerances or other damage. Some mechanical products may require special handling for disposal. Some mechanical products are not heat stable or safe to be left in the barrel for shutdown. Incorrect shutdown procedures will result in carbon buildup at start-up. Some mechanical purging products may not be FDA compliant and may produce irritating or offensive fumes.