Polymaker PC-PBT

Advanced Polymer Blend Polymaker PC-PBT is a high-performance blend of polycarbonate (PC) and polybutylene terephthalate (PBT), engineered to deliver reliable heat resistance and exceptional toughness even at low temperatures, down to -20˚C or -30˚C.

Excellent Chemical Resistance This filament stands out for its robust resistance to a wide range of chemicals, making it a strong choice for applications exposed to harsh environments or industrial settings.

Reliable Mechanical Performance in Cold Conditions Polymaker PC-PBT maintains its strength and durability even in sub-zero environments, ensuring parts remain functional and resilient where other materials might fail.

Ideal for Industrial and Technical Applications Choose Polymaker PC-PBT for projects that require a balance of heat resistance, low-temperature toughness, and chemical durability - perfect for demanding industrial and engineering uses. An enclosure that can trap ambient is heat required.

Parameter
Nozzle temperature	260 – 280 (℃)
Build surface treatment	Texture PEI (Glue when needed)
Build plate temperature	100 – 115 (˚C)
Cooling fan	OFF
Printing speed	50 - 250 (mm/s)
Retraction distance	1 - 3 (mm)
Retraction speed	20 - 40 (mm/s)
Closure Chamber	Needed (100-110˚C)
Recommended support material	-
Drying setting	75˚C for 6h
Annealing setting * Based on 0.4 mm nozzle. Printing conditions may vary	90˚C for 2h

Print Tips

This material should only be printed when you have a heated chamber printer that can reach 100˚C - 115˚C ambient air temperatures.

This means this is an industrial material that should not be printed on standard consumer machines.

• Print slow and hot to help with layer adhesion and warping.

• Keep cooling fans off.

• Set the chamber temp to 100˚C - 115˚C and allow the chamber to heat all the way up before starting your print.

• A dry box or filament dryer is recommended when printing with PC due to it being slightly more hygroscopic.

• Using a larger diameter nozzle will also help with layer adhesion.

• Magigoo PC is a great product to help with polycarbonate build plate adhesion.

• Annealing is required after printing polycarbonate.

• You need to keep your chamber temp at 100˚C - 115˚C for 2 hours after the print finishes. Then allow the print to slowly cool to room temperature.

FAQ

What is annealing?

You can find out more about annealing HERE

Will the spools work in an AMS?

Yes! We have redesigned the edges of our spools so all Polymaker products will now spin great in the AMS.

Does PC absorbs moisture?

The short answer is yes, PolyLite™ PC will absorb moisture slightly faster than regular PLA. We recommend using a dry box to achieve high quality and strong prints.

Why are my parts cracking along layer lines?

You really need to make sure you are using an enclosed printer and that you are keeping ambient air temps as high as possible. You then want to make sure you are annealing the part the moment the print finishes. Keeping ambient air temps high and allowing for very slow cooling is a great way to reduce chances of cracking and to maintain layer strength.

Printing Requirements

• Enclosed printer that can trap heat required.

• Actively heated chamber with minimum 100˚C chamber temp required.

• Large, dense parts will require a heated chamber even more so than small parts.

• Annealing post printing. More info on annealing

• Dryer or drybox recommended.

• Magigoo PC highly recommended to help with bed adhesion.

• All-metal hotend that can reach at least 260˚C

Printing Profiles

Documents

TDS

SDS

Other Docs