Wide range of plastic purging compounds and plastic materials.
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CAST FILM

CAST EXTRUSION

CHOOSE THE MOST SUITABLE GRADE OF PURGING COMPOUND

To clean an extruder without purging compound is not an easy job. Sometimes a purging operation can last for hours, wasting tons of raw material.
Another solution to this issue is to dismantle the die, losing a lot of time.
With the three ranges of purging compound, we can supply the most efficient and economic purging compound.

COLOR CHANGE OR MATERIAL CHANGE?

Depending on the material that you are processing, we have different cleaning solutions.
In order to suggest the correct quantity and type of purging compound, it’s very important to know which material is processed, the dimension of the screw and of the die, the percentage of masterbatch/pigments and the conditions of the machine. These four factors can influence the quantity needed for a good cleaning.

WHY IS IT BETTER TO CLEAN ALSO THE HOT RUNNERS?

The hot runners are very often full of deposits of old plastic and masterbatches.
It can happen that during the first purging Ultra Plast remove colors which have been processed months before.
Furthermore,by removing old deposits all metal surfaces will be clean and blank.

HUGE EXTRUDER?

In some cases, on big machines the operators prefer to clean without a purging compound, as it seems too expensive to use big quantities of
purging compound in granules.
In case of color change, gels and black spots, there are two different fast and economic solutions available: the concentrate grades, to mix with the raw material, and the ULTRA PLAST LP, a liquid purging solution.