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Prusament PETG

Ref.: PRUSA-PETG-ORG-175-1KG

27.27 €

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The Prusament PETG filament from Prusa3D has become one of the most widely used materials in 3D printing thanks to its excellent balance of mechanical strength, thermal durability, and printability. This material, derived from glycol-modified PET, is ideal for creating functional parts, mechanical components, structural supports, and models intended for both indoor and outdoor use.

Part printed with orange PETG.

Photo 1: Part printed with orange PETG. Source: Prusa3D

Unlike other thermoplastics such as PLA or ABS, PETG exhibits low distortion, high heat resistance, excellent layer adhesion, and glossy surface finishes. All of this makes it the preferred choice for those seeking durable, dimensionally stable, and attractive prints without sacrificing ease of printing.

Photo 2: Parts printed with PETG Verde Pro. Source: Prusa3D

Advantages and Disadvantages of PETG

Below is a table comparing the main pros and cons of PETG to facilitate technical evaluation:

PETG Advantages	PETG Disadvantages
✅ High thermal resistance (up to 68 °C)	❌ Not suitable for very small parts
✅ Easy to print with basic settings	❌ Can generate stringing
✅ Low shrinkage and warping	❌ Limited bridging capabilities
✅ Durability and mechanical strength	❌ Strong bed adhesion (risk when removing)
✅ Not brittle like PLA	❌ Cannot be smoothed with acetone
✅ Glossy, smooth surface finish	❌ Supports are more difficult to remove
✅ Good layer-to-layer adhesion	❌ More prone to scratches than PLA
✅ Low odor and emissions during printing	-
✅ Recyclable and more sustainable	-

Video 1: Benchy printed with Prusament PETG translucent carmine red filament.

PETG Filament Applications

The PETG filament stands out for its versatility in 3D printing projects requiring a combination of mechanical strength, thermal durability, and excellent surface quality. This material is widely used for manufacturing mechanical parts under continuous stress, such as gears, structural supports, guides, or anchors where pressure resistance and dimensional stability are crucial. In work environments, PETG is ideal for printing fixtures, clamps, functional components, and wear-resistant housings.

Photo 3: 3D prints using Prusament PETG Jet Black and Matte Black. Source: Prusa3D

It is also a reliable choice for water-exposed parts, thanks to its strong layer adhesion, making it suitable for waterproof applications. Its ability to maintain shape in large-volume prints, even without an enclosed chamber, enables production of big models without deformation or warping. Moreover, its glossy appearance and impact resistance make it effective both for functional prototypes and professional-grade finished products.

Photo 4: Range of transparent Prusament PETG filament colors.

Technical Characteristics of PETG Filament

Below is a technical table summarizing the most relevant properties of PETG filament:

Parameter	Value
Print difficulty	Low to medium
Thermal resistance	Up to 68 °C
Hardness	High
Shrinkage susceptibility	Low
Printing odor	Virtually none
Post-processing	Medium (sandable)
Solubility	Not soluble
Elasticity	Moderate
Print speed	High
Recommended resolution	From 0.15 mm
Abrasiveness	None (no hardened nozzle needed)
Toughness	High (difficult to break)
Thermal expansion	Very low
Recyclability	Yes

Photo 5: Pastel color range of Prusament PETG filament. Source: Prusa3D

Printing Performance and Behavior

PETG is almost as easy to print as PLA, but offers much better mechanical performance. Thanks to the addition of glycol in its chemical structure, this filament becomes less brittle, clearer in translucent versions, and more heat resistant. Additionally, its low thermal expansion prevents prints from detaching from the bed, even when producing large models without an enclosure.

Although fine strings may appear due to its tendency to “stringing”, they can be reduced by optimizing retraction and hotend temperature. A heat gun easily removes any remaining strings, leaving a clean, professional surface.

Thanks to its ductility, PETG withstands pressure without cracking. This mechanical behavior makes it ideal for technical applications, both in prototypes and final parts. It's also an excellent choice for those seeking a durable, affordable, and hassle‑free filament.

Conclusion: PETG Is the Best Option for High‑Strength Functional Printing

The PETG filament combines mechanical strength, thermal stability, high‑quality surface finishes, and printability, making it the best choice for professional and personal projects requiring precision and durability. Its use spans from industrial prototypes to outdoor parts, all with excellent performance even on non‑enclosed heated‑bed printers.

PETG remains one of the most valued materials in 3D printing, ideal for users prioritizing quality, reliability, and sustainability in every print.

Grayscale range of Prusament PETG filament.

Photo 6: Grayscale range of Prusament PETG filament. Source: Prusa3D

General information
Material	PETG
Format	1 Kg \| 2 Kg
Density	(ISO 1183) 1.27 g/cm³
Filament diameter	1.75 mm
Filament tolerance	0.02 mm
Filament length	[1 Kg] 327.4 mm \| [2 Kg] 654,7 mm

Printing properties
Printing temperature	250 ºC
Print bed temperature	80 ºC
Cooling fan	50%
Recommended printing speed	Up to 200 mm/s

Mechanical properties
Charpy impact strength	[Notched] (iso 179-1) 6 KJ/m²
Tensile strength	(ISO 527-1) 47 MPa
Tensile modulus	(ISO 527-1) 1.5 MPa
Flexural strength	(ISO 178) 66 MPa
Flexural modulus	(ISO 178) 17000 MPa

Other
HS Code	3916.9

Prusament PETG is a high-strength filament, suitable for functional parts. It does not require a special hotend or an enclosure for printing.

Printing parameters

The recommended extruder temperature is 250 °C ± 10 °C. The heated bed temperature should be maintained at 80 °C ± 10 °C. The printing fan is required, with a speed set to 50 %. It is recommended to use a textured or satin steel sheet as the printing surface.

Compatible surfaces

Recommended surfaces include PEI sheet, glass bed, painter's tape, or the use of a glue stick. The surface must be kept clean. The use of isopropyl alcohol on PEI is not recommended, as it can cause excessive adhesion that may damage the surface.

Surface cleaning

For the best adhesion without risking bed damage, the surface should be cleaned with window cleaner using an unscented paper towel. Cleaning should be done with the bed at room temperature. Alternatively, warm water with a few drops of soap can be used. If a glue stick is used, it will act as a separator between the part and the bed.

Ventilation

The first layers should be printed without ventilation to ensure good adhesion. From the upper layers, the fan should be activated at 50% to avoid defects such as stringing or material buildup. If maximum mechanical strength is desired, it is recommended to print without a fan throughout the entire print.

Strength strategy

To obtain stronger parts, it is preferable to increase the number of perimeters rather than the infill percentage. Most of the structural strength comes from the outer walls of the part.

Post-processing

Parts printed with PETG allow for dry or wet sanding without difficulty.