PolyMax™ PC is an engineering-grade PC filament that stands out with its excellent strength, toughness, heat resistance, and top-notch printing quality. It outperforms many other PC filaments and can be printed at a relatively low temperature. With a heat deflection temperature (HDT) of up to 114°C (0.45MPa), it's perfect for demanding environments with impact, heat, and vibrations.
**Features**
- **Best-in-class Toughness**: Thanks to nano-reinforcement technology, it offers outstanding toughness and mechanical strength, outperforming ABS, ASA, PETG, and PLA in various mechanical tests.
- **Heat Resistant**: It has better heat resistance than many materials, with an HDT of up to 114ºC (0.45 MPa).
- **Improved Printability**: Engineered for compatibility and usability, it has a lower extrusion temperature (250 - 270˚C) and can be used on a wider range of 3D printers. A 90°C+ heated bed is required, and an enclosure is recommended.
- **Uncompromised Quality**: Polymaker's strict quality control ensures reliable and consistent printing across spools and batches.
**Printing Settings**
- Nozzle Temperature: 250°C - 270°C
- Build Plate Temperature: 90°C - 105°C
- Build Surface Material: Works well with most surfaces like glass and BuildTak®. Rigid build plates are recommended.
- Build Surface Treatment: Apply Magigoo PC.
- Enclosure: Recommended.
- Heated Chamber: Highly recommended, especially for some geometries. 70˚C+ may be needed for larger or denser models.
- Cooling Fan: Turn it off for better strength. Low fan speed may be required for printers with active chamber heating.
- Printing Speed: 30 mm/s - 50 mm/s
- Retraction: Settings vary by printer. Direct drive: 1mm retraction distance at 20mm/s. Bowden: 3mm retraction distance at 40mm/s.
- Recommended Support Material: Self-support.
Note that these are based on a 0.4 mm nozzle. Ideal conditions may vary by printer. For high-speed printers, increase extrusion temperature for higher speeds.
Polycarbonate filaments like PolyMax™ PC work better in a hot environment. Pre-heat the build plate for 20 - 30 minutes before printing larger or denser models, especially in cold climates.
**Annealing PC-FR**
For the best mechanical performance, anneal printed parts at 90˚C for 2 hours. Annealing releases internal stress and prevents micro cracks.
**Specifications**
- Net Weight: 3kg
- Material Type: Tough PC
- Density: 1.19 (g/cm3 at 21.5˚C)
**Compatibility**
PolyMax™ PC is designed for compatibility with a wide range of professional 3D printers. It requires a heated bed, and an enclosure or heated chamber is recommended for large or thin models. Test calibration prints before starting a big project as slicer settings may need adjustment.

Using PolyMax™ PC filament for 3D printing is easy! First, set your printer's nozzle temperature between 250°C and 270°C, and the build plate temperature between 90°C and 105°C. Apply Magigoo PC on the build surface for better adhesion. It's a good idea to use a rigid build plate and an enclosure or a heated chamber. This will help you get great results, especially for larger or more detailed models. You can also pre - heat the build plate for 20 - 30 minutes, especially in cold areas or when printing big, dense models.
When it comes to printing speed, keep it between 30 mm/s and 50 mm/s. For retraction settings, they depend on your printer type. If you have a direct - drive printer, set the retraction distance to 1 mm and the speed to 20 mm/s. For a Bowden printer, use a 3 mm retraction distance at 40 mm/s.
Remember, the cooling fan should usually be off for better strength, but if your printer has active chamber heating, you might need a low fan speed.
After printing, to make your parts stronger, anneal them at 90˚C for 2 hours. This will release any internal stress that built up during printing and prevent micro cracks from forming.
Lastly, always do some calibration tests before starting a big project. Since there are so many different 3D printers out there, you may need to adjust the slicer settings to get the best performance from this filament.