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PC-PBT Polymaker

Ref.: PC-PBT-POLYMAKER-BLACK-175-1000

49.50 €

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Approximate delivery date: Monday 25 November

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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 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.

General information
Material	PC
Format	50 g / 1000 g
Density	(ISO 1183) 1.2 g/cm³
Filament diameter	1.75 / 2.85 mm
Filament tolerance	± 0.05 mm
Filament length	(Ø 1.75 mm - 1 kg) ± 347 m / (Ø 2.85 mm - 1 kg) ± 131 m

Printing properties
Printing temperature	260 - 270 ºC
Print bed temperature	100 - 110 ºC
Chamber temperature	100 - 110 ºC
Cooling fan	✗
Recommended printing speed	40 - 60 mm/s

Mechanical properties
Charpy impact strength	(ISO 179) 21.4 KJ/m²
Elongation at break	(ISO 527) 4.6 %
Tensile strength	(ISO 527) 41.8 MPa
Tensile modulus	(ISO 527) 1986 MPa
Flexural strength	(ISO 178) 64.4 MPa
Flexural modulus	(ISO 178) 1933 MPa
Surface hardness	-

Thermal properties
Melting temperature	223 ºC
Softening temperature	(ISO 306) 139 ºC

Specific properties
Transparency	✗
Chemical resistance	✓

Other
HS Code	3916.9
Spool diameter (outer)	200 mm
Spool diameter (inner hole)	55 mm
Spool width	45 mm

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.