Misumi Purge Agent (20 kg/bag)
Caution
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Product Description
[Characteristics]Misumi Purge removes old molding materials and dirt inside the machine before changing the resin or color inside an injection molding machine.It is also effective for removing carbides that are stuck to screws and cylinders of molding machines.It helps reduce the total cost of molding, by reducing the time required for color change and resin change as well as reducing the percentage of defects caused by foreign matter.It can be used for extruders and blow molding machines in addition to injection molding machines.
Specification Table
| Part Number |
| MPG－HR |
| Part Number | Weight (per bag) | Usable Temperature | Filler | Characteristics | Compatible Resin |
| MPG－S | 20 kg * The order unit is per 1 bag . | 170 to 320°C | None contained | ・ For normal resin. ・ Cleans with non-filler and foaming power of purging agent. ・ As it does not contain any filler, it does not damage screws and cylinders. | PE, PP, PS, ABS, AS, PMMA, PVC (!) POM (!) |
| MPG－HR | 180～370℃ | Inorganic Filler (Non-glass) | ・ For engineering plastic and super engineering plastic resin. ・ Cleans with inorganic filler and frictional force + foaming power. ・ As glass filler is not used, it reduces wear on screws and cylinders. | PA6, PA66, PC, PET, PBT, m-PPE, PPS, PSF, PPO, LCP | |
| MPG－HRC (Discontinued) | ・ A purging agent with soap fragrance for people who are sensitive to smells. ・ For engineering plastics and super engineering plastics, with the same detergency and resin as MPG－HR. | ||||
| MPG－G | 200～380℃ | Glass Filler | ・ For engineering plastic and super engineering plastic resin. ・ Cleans with glass filler and strong frictional force + foaming power. ・ As it contains glass filler, it is suitable for washing persistent dirt such as carbides adhered to screws and cylinders. |
PVC generally has a molding temperature of under 170°C. To use MISUMI PURGE, increase the purge temperature to around 170°C. Although POM is an engineering plastic, it has a low molding temperature. We recommend the use of MPG-S instead. The packaging is 20 kg per bag. Be sure to order in units of bags. For example, when ordering 200 kg, set the quantity to 10.
Usage Example
■ Usage
■Usage Amount Guidelines
| Molding Machine (Mold Clamping Force) | Usage Amount Guidelines |
| 50 to 90 tons | 0.2 to 0.5kg |
| 100 to 150 tons | 1.0 to 1.5kg |
| 200 to 600 tons | 2.0 to 4.0kg |
| 700 to 1,500 tons | 5.0 to10kg |
■ Selection examples by purpose of use
| Part Number | MPG－S | MPG－HR MPG－HRC | MPG－G |
| Retention | ◎ | ○ | Prohibited |
| Holiday Seal (Long-term Filling) | ◎ | ○ | Prohibited |
| Removal of stubborn carbides, etc. | △ | ○ | ◎ |
| Cleaning hot runners | ◎ | ○ | Prohibited |
◎: Recommended ○: Usable △: Unsuitable "Retention" refers to the molding machine not discharging the purge agent from the overheating cylinder during operation, and instead keeping it at the molding temperature for several minutes (3 to 5 minutes) in the heating cylinder. "Long-term filling" refers to filling the inside of the heating cylinder with a replacement purge agent and keeping it with the heater power off or at low temperature for 24 hours or longer. MPG-G cannot be used for retention, long-term filling or cleaning hot runners.
■More Effective Usage
• The purge temperature is the same as the molding temperature of the molded resin, but it is more effective if set higher by 5 to 10°C in the front part of the heating cylinder and the nozzle.
• For stubborn dirt on the nozzle and screw head, it is recommended to retain the purge agent for several minutes (3 to 5 minutes)
and then perform a short purge. This usage method is prohibited for "MISUMI Purge MPG-G".
• If the previous resin remains in the vicinity of the nozzle and check valve, it is recommended to fill the purge material while allowing the nozzle to come in contact with the mold (covering the nozzle hole) to apply back pressure,
then retract the injection table and perform injection two or three times to purge.
• After washing with "Misumi Purge", it may remain if the resin to be molded next is highly fluid.
In this case, it is recommended to perform auxiliary purging using the same type of resin with low fluidity before molding.
■Precautions for Use and Handling
• Be sure to read the SDS (MSDS) before use.
https://jp.misumi-ec.com/maker/misumi/tech/sds/
• Keep the purge temperature strictly within the temperature range of "Misumi Purge".
• Do not retain "Misumi Purge MPG-G" in the cylinder for a long time.
• Do not drink or consume "Misumi Purge", or inhale the gas generated during use.
• "Misumi Purge" is combustible. Keep it away from ignition sources during use and storage.
• Discard "Misumi Purge" and its waste as general industrial waste.
• If pellets spill, collect them and take appropriate measures.