Clean KDN is one of the latest innovations coming from Polytechs Laboratory. He is a purging compound containing a high level of additives semi-abrasive minerals and organic additives based on HDPE. The product in granular form opaque, beige, is used to reduce the cleaning time. This product runs smoothly and can itself be easily removed from the extruder. This product do not contain silica or oleamide. Approved internally and by industry peers – from 2 to 8 shots only to purge & clean challenging color changes.