Ultra Purge™ 5160
Ready-to-Use Purging Compound with Ultra-X™ Technology
Benefits
- High efficiency
- Rapid cleaning effect
- Easy to use
- Operator and equipment safe
- Wide application range
Description
Ultra Purge™ 5160 is a ready-to-use purging compound with Ultra-X™ Technology. It can be used for cleaning in injection molding, hot-runners, extrusion, and sheet extrusion applications. Ultra Purge™ 5160 can also be used for the cleaning of screw, barrel, nozzle, hot-runner and gate of injection molding machines processing thermoplastic resins. The purging concentrate consists of highly efficient cleaning additives and does not contain abrasives.
Ultra Purge™ 5160 can be used at processing temperatures from 190°C (374°F) to 320°C (608°F).
The purging compound is especially recommended for color and material change as well as for the removal of black spots, carbon residues and shut-downs.
Ultra Purge™ 5160 is suitable for following thermoplastic resins:
Resin | Suitable |
Amorphous resins | ++ |
Crystalline resins | |
PA, POM | + |
PET | + |
Polyolefins | |
PS | + |
TPE-TPR | + |
High-temperature engineering resins | |
PVC | |
TPU | + |
Transparent polyamides, CA, CAB, when switching from any resin to PMMA | |
When switching from any resin to PC | |
When switching from any resin to PMMA |
Typical Properties
Appearance Grayish-brown and transparent granules mixed with grayish-brown tablets
Special Notes
- Do not use on mirror-polished surfaces with hardness lower than 45 HRC.
- Do not load Ultra Purge™ through heated feeding line - Ultra Purge™ starts to melt at 80°C / 176°F.
- Do not use more than recommended quantities of Ultra Purge™ per cleaning.
- Do not increase temperatures when dealing with thermo-sensitive resins or additives.
- Do not mold difficult-to-eject parts – when molding Ultra Purge™ you may get a short shot.
- Do not use Ultra Purge™ outside its working temperature range.
Application
This document is a general description on how to use Ultra Purge™. Request your customized instructions by contacting your nearest sales office or local distributor.
Please read carefully the SDS before using Ultra Purge™.
We recommend the following cleaning procedures.
Cleaning of Screw and Barrel – Injection Molding:
- Move the injection unit to the back position. We recommend keeping the barrel full of resin when adding Ultra Purge™ in the machine.
- Manually remove all possible contamination sources in the hopper/mixer/filters.
- Add Ultra Purge™ (1 barrel capacity).
- Make injections until you see Ultra Purge™ being ejected through the nozzle.
- For machines larger than 500 tons, we recommend reducing the shot size to 20% of the maximum allowed shot size.
- Add the next production resin/color directly after Ultra Purge™ and make injections until Ultra Purge™ is displaced from the machine. (In case of material change with different working temperature, empty the barrel from Ultra Purge™ before adding the next production resin and set the temperatures to the next production settings.)
- Make 4-5 injections with the next resin to completely displace Ultra Purge™.
- If contamination persists, repeat steps.
Cleaning of Hot-Runner System – Mold Open - Injection Molding:
- We recommend keeping the barrel full of resin when adding Ultra Purge™ in the machine.
- We recommend increasing hot-runner temperatures (tips and manifold), if possible, and nozzle by 30°C/54°F.
- Manually remove all possible contamination sources in the hopper/mixer/filters.
- Add Ultra Purge™ (1 barrel capacity).
- With mold open, make injections until you see Ultra Purge™ being ejected through the hot-runners.
- For machines larger than 500 tons, we recommend reducing the shot size to 20% of the maximum allowed shot size.
- Add the next production resin directly after Ultra Purge™.
- Continue making injections with Ultra Purge™.
- Make 4-5 injections with the next resin to completely displace Ultra Purge™. Set all the parameters to the next production settings.
- If contamination persists, repeat steps.
Cleaning of Hot-Runner System – Mold Closed - Injection Molding:
- We recommend keeping the barrel full of resin when adding Ultra Purge™ in the machine.
- If possible, we recommend increasing hot-runner temperatures (tips and manifold) by 30°C/54°F.
- Manually remove all possible contamination sources in the hopper/mixer/filters.
- Add Ultra Purge™ (1 barrel capacity) and mold parts until 100% Ultra Purge™ is molded into parts.
- Add the next production resin directly after Ultra Purge™.
- Continue molding parts out of the Ultra Purge™.
- Make 4-5 cycles with the next resin to completely displace Ultra Purge™. Set all the parameters to the next production settings.
- If contamination persists, repeat steps.
Cleaning for Shut-Down and Start-Up – Injection Molding:
SHUT-DOWN
- Move the injection unit to the back position. We recommend keeping the barrel full of resin when adding Ultra Purge™ in the machine.
- Add half barrel capacity of Ultra Purge™.
- Reduce the shot size and make injections until the barrel is completely empty. DO NOT ADD RESIN AFTER ULTRA PURGE™!
- Turn off the machine completely (do not leave heaters in “Maintenance/Idle” mode).
START-UP
- Turn on the machines to production settings, load half barrel capacity of Ultra Purge™ followed by your production resin and begin normal production.
- If contamination persists, follow the standard cleaning procedure. It is normal to see contamination being flushed out on startup.
Cleaning of Screw and Barrel – Extruder:
- We recommend keeping the barrel full of resin when adding Ultra Purge™ in the machine.
- We recommend removing the finest layer of the screen pack. Make sure that the pressure or torque force remains within safety limits when running Ultra Purge™.
- Add Ultra Purge™ (approximately 1.5 times the extruder barrel capacity).
- Extrude at low speed until Ultra Purge™ is ejected from the machine.
- Add the next production resin directly after Ultra Purge™. (In case of material change with different working temperature, empty the barrel from Ultra Purge™ before adding the next production resin and set the temperatures to the next production settings.)
- Extrude the next production resin at high speed to completely displace Ultra Purge™.
- If possible, replace the screen pack during this phase.
- If contamination persists, repeat steps.
Cleaning for Shut-Down and Start-Up – Extruder:
SHUT-DOWN
- We recommend keeping the barrel full of resin when adding Ultra Purge™ in the machine.
- We recommend removing the finest layer of the screen pack. Make sure that the pressure or torque force remains within the safety limits when running Ultra Purge™.
- Add Ultra Purge™ (1 barrel capacity).
- Purge out until the barrel is completely empty. DO NOT ADD RESIN AFTER ULTRA PURGE™!
- Turn off the machine completely (do not leave heaters in “Maintenance/Idle” mode).
START-UP
- Turn on the machines to production settings, load half barrel capacity of Ultra Purge™ followed by your production resin and begin normal production.
- If possible, replace the screen pack during this phase.
- If contamination persists, follow the standard cleaning procedure. It is normal to see contamination being flushed out on startup.
Cleaning – Sheet Extrusion:
- Before starting the purging process, decrease the temps in the head middle area (-20°C/-36°F) and increase the temps on the sides (+20°C/+36°F).
- Manually remove all contaminations from the feeding area.
- We recommend keeping the barrel full of resin when adding Ultra Purge™ in the machine.
- We recommend removing the finest layer of the screen pack. Make sure that the pressure or torque force remains within the safety limits when running Ultra Purge™.
- Add Ultra Purge™; the amount required for the purging process equals 1 full system capacity (barrel and head).
- Load the next production resin directly after Ultra Purge™.
- When Ultra Purge™ starts to be ejected, increase the screw rotation to the maximum safe speed to flush out all contaminations.
- Set all the parameters to the next production settings and begin normal production.
- If possible, replace the screen pack during this phase.
- If contamination persists, repeat steps.
Cleaning for Shut-Down and Start-Up – Sheet Extrusion:
SHUT-DOWN
- We recommend keeping the barrel full of resin when adding Ultra Purge™ in the machine.
- Manually remove all contaminations from the feeding area.
- We recommend removing the finest layer of the screen pack. Make sure that the pressure or torque
- force remains within the safety limits when running Ultra Purge™.
- Add Ultra Purge™. The amount of Ultra Purge™ required for the purging process equals 50% of the system volume capacity (barrel and head).
- Purge out until the barrel is completely empty. DO NOT ADD RESIN AFTER ULTRA PURGE™!
- Turn off the machine completely (do not leave heaters in “Maintenance/Idle” mode).
START-UP
- Turn on the machine to production settings.
- Add Ultra Purge™. The amount of Ultra Purge™ required for the purging process equals 50% of the system volume capacity (barrel and head). Load the next production resin directly after Ultra Purge™.
- Reduce the screw rotation speed. When Ultra Purge™ starts to be ejected, increase the screw rotation to the maximum safe speed to flush out all contaminations.
- Set all the parameters to production settings and begin normal production.
- If possible, replace the screen pack during this phase.
- If contamination persists, follow the standard cleaning procedure. It is normal to see contamination being flushed out on startup.
Dosage
Please refer to specific cleaning process.
Storage/Handling
Ultra Purge™ 5160 should be stored in a dry indoor area at room temperature. For further information on storage, handling, hazards, etc. please refer to safety data sheet.
Shelf Life
18 months
Packaging
Ultra Purge™ 5160 is available in a variety of package sizes. Please contact Chem-Trend customer service for details.