Filament (FDM)

PCTG 3D printing

PCTG is a copolyester of the PETG family with higher impact strength. We print it in Brescia with FDM for functional prototypes and parts that have to take knocks.

Price band

€

1 variantData checked on 13 November 2026

Request a quote Download the data sheets

What it is for

PCTG is used for functional prototypes, housings and covers, brackets, guards and containers: parts that are assembled, handled and may take knocks. It is a tough copolyester with low sensitivity to moisture, more impact-resistant than PETG, which belongs to the same family.

Do not choose it for parts that work in heat: the data sheet reports a heat deflection temperature of 76 °C at 0.45 MPa (ISO 75; supplier data, not measured on printed specimens). For higher temperatures move to ABS or polycarbonate; for outdoor use to ASA; for parts subject to wear to nylon.

Variants compared

PCTG: properties of the variants from the makers' data sheets, one column per variant
Property	PCTGQuote
Mechanical
Tensile strengthISO 527, at break, orientation not stated	45 MPa
Elongation at breakISO 527, orientation not stated	220%
Flexural strengthISO 178	60 MPa
Flexural modulusISO 178	1,600 MPa
Izod impact, notchedISO 180, at 23 °C	92 kJ/m²
Thermal
Heat deflection temperature (HDT) at 0.45 MPaISO 75	76 °C
Heat deflection temperature (HDT) at 1.8 MPaISO 75	64 °C
Physical
DensityASTM D792	1.23 g/cm³
Source	Fiberlogy, Fiberlogy PCTG, Last update: May 20, 2025, PDFread on 13 November 2026

Typical values from the makers' data sheets, measured on specimens under the conditions stated. They are not guaranteed design values: for a critical application ask us for a test on your part.

Design limits

Build volume: 350 × 350 × 450 mm
Minimum wall: 3 mm
Dimensional tolerance: ±0.6 mm up to 100 mm, ±0.75% above

These are the limits of the process, the same for every variant unless stated. For critical dimensions, talk to us before printing.

Which variant to choose

PCTG comes in a single variant. Choose PLA if all you need is a stiff, detailed model; ABS or polycarbonate if the part works in heat; nylon if wear resistance matters.

Data sheets

Fiberlogy, Fiberlogy PCTG, Last update: May 20, 2025, PDFread on 13 November 2026
Columns: PCTG

FAQ

Frequently asked questions

They are copolyesters of the same family and are used for the same parts. PCTG is generally tougher under impact; PETG is more common. The PCTG data sheet reports an elongation at break of 220% and a tensile strength at break of 45 MPa (ISO 527, supplier data).

The data sheet reports a heat deflection temperature of 76 °C at 0.45 MPa and 64 °C at 1.8 MPa (ISO 75). These are supplier data, not measured on printed specimens. For parts close to heat sources a material with more margin, such as ABS or polycarbonate, is the safer choice.

Copolyesters such as PCTG are used in contact with water, diluted detergents, oils and greases. Strong solvents, ketones and aromatic hydrocarbons attack them. If the part works in contact with a specific product, state it in your request: we take it into account when choosing the material.

Do you have a part to print in PCTG?

Upload the CAD file: we reply within 1 working day with a quote and a recommended material.

Request a quote