General Injection Moulding
General-purpose injection moulding grades with medium-to-high flow, balancing toughness, hydrolysis resistance and cycle efficiency — for structural parts, thin walls and precision small parts.
01 Material Overview
The general injection moulding series is the entry point to POK and also the largest volume family. M330A is the medium-flow reference grade, with melt flow suited to most conventional wall thicknesses; M130F is the highest-flow food-contact grade, aimed at thin walls, long flow paths, restricted gate locations, precision small parts and multi-cavity tools.
What the family shares is hydrolysis resistance and low water uptake. Compared with PA66, POK does not swell noticeably in humid conditions, so dimensional drift stays small and assembly clearances remain stable. For structural parts that work long-term in hot and humid environments, this often matters more than strength itself.
Dry the material thoroughly before processing (80–100 °C for 3–4 hours), keep the melt temperature below the recommended ceiling, and avoid long residence times that cause degradation. Refer to the TDS of the specific grade for the exact processing window.
02 Included Grades
| Grade | Features / Notes |
|---|---|
| M330A | Medium flow, the general reference grade |
| M130F | Highest flow, food-contact grade, for thin walls and precision small parts |
03 Supply & Specifications
| Material system | POK terpolymer |
|---|---|
| Process | Injection moulding |
| Colour | Natural / custom colours |
| Packaging | 25 kg bag |
| Certifications | FDA, EU 10/2011 (F series) |
| Full properties | See the TDS of the grade |
* Typical values, not guaranteed specifications. For design purposes, always refer to the latest TDS of the grade concerned.
