PC-PBT Polymaker


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49,50 €

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PC / PBT polymer blend that offers good heat resistance and high chemical resistance.

Polymaker PC-PBT is a filament formed by a mixture of both polymers (copolyester and polybutylene terephthalate). PBT (polybutylene terephthalate) is a semi-crystalline thermoplastic from the polyester polymer family, well known in the food industry due to chlorine resistance. In addition, it is characterized by its high strength, stiffness and resistance to thermal deformation. These properties combined with those of PC (polycarbonate) achieve a material with high impact resistance (even at low temperatures) and with good chemical resistance.

Polymaker PC-PBT

Piece made with Polymaker PC-PBT. Source: Polymaker

Thanks to its high chemical resistance (hydrocarbons, alcohols, organic acids, inorganic aqueous salts and diluted solutions of base and acid), the Polymaker PC-PBT is an ideal filament for applications that require resistance to intermittent contact with lubricants, solvents, fuels , oils and other chemicals.

It should be noted that PC-PBT is not resistant to strong alkalis or chlorinated, aromatic solvents, which contain ketones or esters. In addition to the resistance to chemical elements itself, there are certain additional influence parameters of the chemical resistance itself, such as the composition of the surrounding media, the temperature to which the piece is exposed and the duration of exposure. Therefore, it is essential to perform a first resistance test under real operating conditions.

This filament also stands out for its high impact resistance, with excellent toughness at low temperatures, keeping more than 70% of its impact resistance at -30 °C.

Polymaker PC-PBT

Image 2: Piece made with Polymaker PC-PBT. Source: Polymaker

Polymaker Industrial Authorized ResellerPolymaker Industrial Authorized Reseller The PC-PBT filament is part of the range of high-performance filaments oriented to the industry: Polymaker Industrial, of which Filament2Print is one of the select distributors authorized by Polymaker for marketing.

Impact strength (KJ/m2) 21.4
Elongation at break (%) 4.6
Tensile strength (MPa) 41.8
Tensile modulus (MPa) 1986
Flexural strength (MPa) 64.4
Flexural modulus (MPa) 1933
Softening temperature (ºC) 139
Machinable Machinable
Abrasion resistance Abrasion resistance
Moisture resistance Moisture resistance
Chemical resistance Chemical resistance
Hide color variations (Hide color variations)

To ensure good adhesion to the printing base and easy removal, Polymaker recommends using a thin layer of Magigoo PC on a flexible plate.

It is recommended to use a printing temperature of 260 °C with a fully metallic HotEnd to keep the temperature stable, a base temperature of 100 -115 °C and a chamber temperature of 100 - 110 °C. If you do not have a heated chamber, it is recommended to remove the part from the base once the printing is finished, to release the internal residual tension. Regardless of this, the pieces must be annealed at 90 °C for two hours, to eliminate deformations.

General information
Manufacturer Polymaker (Europe)
Material PC-PBT
Format Pack of 50 g
Spool of 1000 g
Density 1.2 g/cm3
Diameter of filament 1.75 or 2.85 mm
Diameter tolerance ±0,05 mm
Filament length ±347 m (Ø 1.75 mm-0.75Kg)
±131 m (Ø 2.85 mm-0.75Kg)
Color Black
RAL/Pantone  -
Print settings
Printing temperature 260 - 270 ºC
Print bed temperature 100 - 115 ºC
Chamber temperature 100 - 110 ºC
Cooling fan Not recommended
Recommended printing speed 40 - 60 mm/s
Raft separation 0.2 mm
Retraction 1 - 3 mm
Retraction speed 60 mm/s
Maximum cantilever manufacturing angle 45º
Recommended support material PolyDissolve S2
Mechanical properties
Izod impact strength -
Charpy impact strength (ASTM D256) 21.4 kJ/m2
Elongation at break (ASTM D638) 4.6 %
Tensile strength (ASTM D638) 41.8 MPa
Tensile Modulus (ASTM D638) 1986 MPa
Flexural strength (ASTM D790) 64.4 MPa
Flexural modulus (ASTM D790) 1933 MPa
Surface hardness -
Thermal properties
Softening temperature (ASTM D1525) 139 ºC
Melting temperature -
Specific properties
Transparency  Opaque
Additional Information
HS Code 3916.9
Diameter coil (outer) 200 mm
Diameter coil (inner hole) 55 mm
Coil Width 45 mm

* The typical values detailed in this table should be considered as a reference. Actual values may vary depending on the 3D printer model used, part design and printing conditions. We recommend confirming the results and final properties with own tests. For more information you should consult the technical data sheet of the product.

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