Polycarbonate moisture-control decision
Polycarbonate filament drying temperature: 75–100°C examples
Polycarbonate filament does not have one safe drying preset. Polymaker publishes 75°C for one current PC, Bambu Lab publishes 80°C for its PC, Prusa lists 85–90°C across three PC products, and Creality's family guide reaches 100°C. The product and drying method must remain attached to the number.
A 70°C dryer is below every cited PC recovery cycle on this page. An 85°C dryer fits the cited 75–85°C products on paper but not Prusa's 90°C PC variants or Creality's 100°C upper bound. A 110°C system clears the cited temperatures, provided the exact spool and maker instructions permit that method.
Direct answers
The questions that change the equipment decision
What temperature should polycarbonate filament be dried at?
Use the exact product instruction. The official examples here span 75°C for Polymaker PolyMax PC, 80°C for Bambu PC, 85–90°C for Prusa PC products, and 80–100°C in Creality's PC family guidance.
Is a 70°C filament dryer enough for PC?
Not for any recovery cycle cited on this page. SUNLU says its 70°C S4 can dry PC, but the purchased PC data sheet—not the dryer preset—decides whether 70°C is sufficient.
Does PC need to stay dry while printing?
Creality marks PC as requiring drying both before and during use. Polymaker also recommends a dry box or dryer while printing PolyMax PC. Follow the exact product's humidity and storage guidance.
Product-specific evidence
Official temperatures with the product and method attached
| Official product guidance | Temperature | Time | Method and limit |
|---|---|---|---|
| Polymaker PolyMax PC | 75°C | 6 hours | Product drying setting. An official 75°C PC cycle exists, but it applies to this formulation. |
| Bambu Lab PC | 80°C | 8 hours | Blast drying oven. Bambu also documents a 100°C heatbed method for 12 hours; the methods are not interchangeable. |
| Prusament PC Blend | 85°C | 5 hours | Prusa drying guidance. An 85°C appliance is an exact paper match with no temperature headroom. |
| Prusament PC Blend CF / PC Space Grade | 90°C | 4–6 hours | Prusa drying guidance. Filled or specialized PC can move beyond the ceiling of common 85°C systems. |
| Creality PC family guidance | 80–100°C | 8 hours | Blast dryer. A family range is a screening boundary, not a replacement for the purchased spool's data sheet. |
Do not average these settings. The range shows why a material-family preset cannot replace the current instructions for the purchased spool.
Capability screen
How documented dryer ceilings compare
SUNLU FilaDryer E2
Clears 75–100°C on paper. Its documented 35–110°C range covers every temperature cited here, but the spool heat rating, method, load, and uniformity still require confirmation.
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Check FilaDryer E2 at SUNLUSUNLU FilaDryer S4 Pro
Fits only the 75–85°C examples. Its 85°C maximum can match PolyMax PC, Bambu PC, and Prusa PC Blend on paper. It remains below the cited 90°C and 100°C cases.
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Check FilaDryer S4 Pro at SUNLUCreality SpacePi X4
Fits only the 75–85°C examples. Its 85°C ceiling has the same material-screening boundary: it cannot satisfy a 90°C or 100°C requirement by specification alone.
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Check SpacePi X4 price at CrealityA maximum is a rejection screen, not a performance test. It does not prove chamber uniformity, recovery time, sensor accuracy, or the temperature at the center of a loaded spool.
Three checks before buying
Keep the requirement separate from the appliance
Identify the exact PC product.
PC, PC Blend, PC-CF, and specialty PC are not one drying recipe. Keep the brand, formulation, and method attached.
Confirm the reel tolerates the cycle.
High-temperature drying can deform a reel even when the filament itself requires the heat.
Plan low-humidity feeding.
Recovering the spool and then exposing it during a long print can undo part of the preparation.
Decision path
Resolve the drying workflow in this order
- 01Read the purchased spool's current instructions.
Record temperature, time, method, spool limit, and any target humidity.
- 02Reject dryers below the required temperature.
Do not invent a longer, lower-temperature substitute unless the filament maker documents it.
- 03Choose capacity and storage after capability.
Once the cycle fits, compare spool dimensions, feed paths, chamber layout, timer, sealing, and support.
Primary source trail
Manufacturer documents used for this decision
Related drying decisions
Continue with the exact job or material.
Use the reference chart to find the requirement, then move to the material or workflow guide that answers the purchase question.
Start with product-specific examples from 55°C through 100°C.
Open decision →PETG troubleshootingDecide whether PETG needs dryingUse symptoms, storage history, and exact maker cycles before buying hardware.
Open decision →PLA moisture controlCompare official 45–60°C PLA cyclesSee why product, method, time, and spool safety must stay attached.
Open decision →High-temperature dryingScreen dryers for PA6-CFCompare consumer-dryer ceilings with cited 80°C and 100°C requirements.
Open decision →PLA-CF moisture controlCheck the cited 55°C PLA-CF cyclesKeep temperature, time, method, and abrasive-nozzle requirements separate.
Open decision →ASA capabilityMatch a dryer to a 65–80°C ASA cycleSee why a 70°C ceiling fits some official examples but not all of them.
Open decision →Separate ordinary PC, PC Blend, and PC-CF before screening dryer temperature.
You are hereSee which 70°C examples fit—and where a higher documented ceiling matters.
Open decision →PPA-CF capabilityScreen 100–140°C composite cyclesUnderstand why 85°C dryers fail and a 110°C system is only a partial answer.
Open decision →Drying versus storageChoose a dryer, dry box, or bothSeparate active moisture removal from keeping a verified-dry spool dry.
Open decision →Confirm the spool heat rating, approved method, ventilation, electrical requirements, fire-safety instructions, and current manufacturer guidance before applying heat.