Injection Molding Colour Change with EasyPurge Purging Compound
PA6 FG 45% Black to PA6 FG 45% White
Goal: Reduce color change purging cost
Material: PA6 FG 45%
Colour: Black to White
Purge: 140 ml
Time: 20 mins
Factory Location: Germany
First, The barrel was emptied before the purging process.
Doses of 70ml of Easypurge purging compound were added into the hopper followed by virgin material.
Easypurge purging compound increases the volume of the melted mass, allowing purge to reach negative flow sites.
After the second pass of purging compound, the PA6 FG 45% white had no presence of colour contamination.
Purging Compound used
Purging Compound Cost
Colour Time Change
Pellet Purging compound
Comment by the Process manager:
“ The machine operator appreciated the fact that he just need to pour a small dose of the purging compound versus climbing into the machine with a 25 kg bag of pellet purging compound we normally used ”.