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Processing

During processing, Yparex® behaves like a standard polyolefin material. Therefore, it does not require any pre-drying step prior to processing as it is not moisture sensitive. Material should, however, be stored dry and away from direct sunlight to ensure storage stability. 

Zone temperatures from a cooled feed entrance may reach up to 200-220 °C, using a relatively flat processing profile in the case of pipe or blown-film extrusion. For cast film and extrusion coatings, the temperatures of the melt will be higher accordingly and may reach 240-290°C. 

There is no need to run purge compounds during production stops as the Yparex® material is adequately thermal stabilised. At the end of the production run, customers may wish to clean out any remaining Yparex® with a standard LLDPE (MFI=1 dg/min).
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