NCT Grade | High-Temp Extrusion Purging Instructions

Asaclean® NCT Grade Extrusion Purging Instructions for High Heat Resins 175°C – 360°C (345°F – 680°F)

Empty the system of production resin. Do NOT remove die.
Make sure feed areas are clean.
Flush the machine by running 1-4 system volumes of clean, natural HMW-HDPE. Run system empty.
Add Asaclean® NCT at normal screw speed until the purge extrudes uniformly from the die.
Soak the system with the screw turning at minimum controllable rpm for 20-30 minutes (if sealing, turn off all heaters with the system full of Asaclean® NCT).

Note: If transitioning to a resin with a lower processing temperature, stay at initial operating conditions until the system is clean. Asaclean® NCT is heat activated and works best in the 260°C - 315°C (500°F - 600°F) range.
Empty system.
If contamination is visible as the last of the Asaclean® NCT exits the die, repeat steps 4-6.
Set temperature profile for next resin to run.
When safe, displace the Asaclean® NCT with the next resin.
Begin production under normal processing conditions.

To request detailed technical bulletins or technical support, contact us at Asahi Kasei Plastics North America Inc.

Phone: (800) 787-4348 / (973)257-1999
Fax: (973) 257-1011
Website: www.Asaclean.com
E-mail: sales@Asaclean.com