Polycarbonate / PC Filament: Uses, Properties and Printing Guide
A high-heat, tough material family for capable machines, with demanding temperature and enclosure requirements.
Check whether it fits your part
Best uses and poor fits
Commonly selected for
- high-heat functional parts
- tough engineering components
Consider another material for
- low-temperature open printers
- casual first prints
Preparation for the exact spool
Printing difficulty: advanced.
Pure PC and easier-printing PC blends need different preparation. Prusa identifies moisture, warping and the required printing temperatures as practical constraints.
Confirm the exact blend and sheet combination, including any required release layer. Do not generalise a PC Blend surface instruction to every polycarbonate formulation.
These starting points summarise the linked material-family guidance, checked 2026-10-25. Use the exact spool and printer profile for temperatures and drying instructions.
Does a small successful print represent the full footprint?
A small fit sample can answer a local assembly question while a larger footprint introduces a different warping challenge. Keep those observations separate when planning a large guard or cover.
A small check before the full part
Start with the critical mating region, then evaluate a representative base section before a complete large part. Record cooled dimensions and corner lift, not just whether the print finished.
This is a proposed check for your own process, not a test already performed by InspectMesh. Record the product, orientation, settings and observation before applying the result to a larger part.
Equipment evidence before a long print
Published product data: Prusa Polymers - Prusament PC Blend.
Formulation: Polycarbonate blend; not pure PC or PC Blend Carbon Fiber.
The blend identity matters. The sheet separates preparation settings and loaded deflection tests. Its values cannot qualify another PC or a filled variant. A large footprint needs warp evidence beyond a successful small fit sample.
| Published claim | Source and test scope | Still to verify |
|---|---|---|
| Density Prusa Polymers Prusament PC Blend: 1.22 g/cm³ | Prusament PC Blend technical sheet, p. 2, typical properties. Version 1.1; document date 2022-02-16; checked 2026-10-29. Test and setup detailsMethod: Prusa Polymers; load: not specified; specimen: not specified; orientation: not specified; conditioning: not specified; test temperature: not specified. | Filament/material density, not sliced-job consumption. |
| Heat deflection temperature Prusa Polymers Prusament PC Blend: 93 °C | Prusament PC Blend technical sheet, p. 2, typical properties. Version 1.1; document date 2022-02-16; checked 2026-10-29. Test and setup detailsMethod: ISO 75; load: 1.80 MPa; specimen: not specified; orientation: not specified; conditioning: not specified; test temperature: not specified. | Test deflection temperature, not continuous operating capability. |
| Tensile modulus Prusa Polymers Prusament PC Blend: 1.9 ± 0.1 GPa | Prusament PC Blend technical sheet, p. 2, printed-specimen table; p. 3, footnote setup. Version 1.1; document date 2022-02-16; checked 2026-10-29. Test and setup detailsMethod: ISO 527-1; load: not specified; specimen: MK3S; PrusaSlicer 2.1.1; 0.20 mm FAST; 100% rectilinear infill; 2 perimeters; no top/bottom; 275 °C nozzle; 110 °C bed; orientation: Horizontal; conditioning: not specified; test temperature: not specified. | Moisture conditioning and test-room temperature are not specified for this row. |
| Build surface instruction Prusa Polymers Prusament PC Blend: Satin sheet; smooth PEI and powder-coated sheets with a glue-stick separating layer. | Prusament PC Blend technical sheet, p. 1, bed type and footnote. Version 1.1; document date 2022-02-16; checked 2026-10-29. Test and setup detailsMethod: not specified; load: not specified; specimen: not specified; orientation: not specified; conditioning: not specified; test temperature: not specified. | Verify these instructions with the exact installed printer and spool. They do not qualify your finished part. |
- Read the selected printer record: an absent nozzle or bed limit is unknown.
- Verify the exact blend profile and bed capability, then the maker-approved enclosure or skirt arrangement.
- Confirm sheet, separation layer and removal method together. Do not infer a filled-nozzle upgrade.
- Retain a representative cooled footprint observation before committing to the full part.
Your next evidence: Check the full printer profile, bed and surface-release instructions, enclosure guidance and footprint trial before the long guard. A maximum nozzle temperature alone leaves these questions unanswered.
Use this named product's published density in the length calculator.
No physical material testing was performed by InspectMesh. Your observations remain separate from these manufacturer reports.
Read drying instructions with the equipment limits · Check filler requirements and installed nozzle fitment
Printing and design cautions
- Warping
- Moisture defects
- Build surface damage
- Verify the printer and build-surface maker guidance.
- Allow for thermal stress in large parts.
Major limitations and safety notes
- Many printers cannot reach every PC profile.
- Blends may have different requirements.
Use normal good workshop practice and manufacturer safety information. This is generic guidance, not a hands-on spool review or a safety certification.
Related comparisons
Plan material and cost
Sources
Catalogue baseline 2026-09-20. Preparation guidance reviewed 2026-10-25 against the linked family source; no physical spool test is claimed.
Verify the exact blend and printer environment
For an illustrative heat-exposed guard, distinguish an easy-print PC blend from another polycarbonate formulation. The family name and broad temperature range do not establish the correct enclosure, bed preparation, dimensions after cooling or safe service load for your specific part.
Read the product datasheet and printer guidance, verify the full profile and make a representative fit/warp coupon. A 5.0 mm hole can change in the printed process even when its mesh dimensions are correct. Use observed fit compensation rather than an invented universal shrinkage factor.
Illustrative decision scenario, not a physical material test. Check the exact drying guidance and product datasheet before using a numerical cycle.
Check your partial spool against the job · Calculate requested throughput · Compare requirements in the selector