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Prusament PETG V0

Ref.: PRUSA-PETG-V0-JETK-175-1KG

49.58 €

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Prusament PETG V0 is the world's first and only self-extinguishing PETG filament with UL94 V0 certification, making it the best choice for environments where heat resistance, fire safety, and legal compliance are essential. This technical material is designed by Prusa3D specifically for 3D printing of enclosures, electronic components, and insulating parts that require flame-safe behavior.

Video 1: Presentation of Prusament PETG V0.

Thanks to its advanced formulation, PETG V0 ensures stable printing, with minimal warping, no need for enclosed chambers or special nozzles. Its self-extinguishing behavior has been tested under the IEC 60695-11-10 standard, earning the international UL94 V0 certification, ideal for sectors seeking technical and legal validation from the prototyping stage.

During combustion, this filament forms a charred crust on the surface of the printed part that blocks oxygen entry, thereby stopping the fire's progress. This property makes PETG V0 a key material for environments with ignition risks, whether domestic, industrial, or electronic.

Additionally, Prusament PETG V0 maintains a glossy finish, excellent layer adhesion, and prints easily on open-frame printers. Its strict manufacturing controls ensure a dimensional tolerance of ±0.02 mm, high color consistency, and full quality control thanks to QR code traceability on every spool.

Photo 1: Enclosures printed with Prusament PETG V0. Source: Prusa3D

Pros and cons of Prusament PETG V0

Pros	Cons
✅ World's only UL-certified self-extinguishing PETG filament	❌ Absorbs moisture easily, requires drying before use
✅ High thermal resistance and minimal warping	❌ Not suitable for small or highly detailed parts
✅ Ideal for electronic components and insulating parts	❌ Prone to stringing and oozing
✅ Easy to print, even on open printers	❌ Poor performance on long bridges
✅ Almost odorless during printing	❌ Strong bed adhesion may hinder part removal
✅ Uniform, glossy surface finish	❌ Cannot be smoothed with acetone
✅ Highly durable, not brittle	❌ Supports are harder to remove
✅ Easy to sand	❌ More prone to scratches than PLA
✅ Certified safety for electronics and industrial prototyping	❌ Slightly lower mechanical properties than standard PETG

Photo 2: Parts printed with Prusament PETG V0. Source: Prusa3D

Technical specifications of Prusament PETG V0

Property	Details
Filament type	Self-extinguishing PETG with UL94 V0 certification
Printing temperature	240 – 260 °C
Bed temperature	70 – 90 °C
Printing difficulty	Low to medium
Thermal resistance	Up to 68 °C
Shrinkage / warping	Low
Hygroscopicity	High (requires prior drying)
Odor	Almost none
Surface finish	Glossy and uniform
Elasticity	Low
Hardness	Moderate
Post-processing	Medium (effective sanding)
Solubility	Not soluble
Abrasiveness	None
Impact resistance	High, not brittle
Printing speed	High
Recommended resolution	From 0.15 mm
Flame certification	UL94 V0 (IEC 60695-11-10)
Certified compatibility	Prusa MK3S+, MK4, and XL with official PrusaSlicer profiles

Photo 3: Enclosure printed with Prusament PETG V0. Source: Prusa3D

PETG vs PETG V0: key differences between standard and self-extinguishing filament

PETG is widely used in 3D printing due to its mechanical strength, flexibility, and ease of use. However, when a technical solution combining fire safety and regulatory compliance is needed, PETG V0 becomes the best alternative.

The main difference between PETG and PETG V0 is their flame behavior. While standard PETG is not flame-retardant, PETG V0 has been specifically developed as a self-extinguishing filament with UL94 V0 certification.

Both filaments share a similar extrusion temperature and good dimensional stability. However, PETG V0 requires more careful storage and preparation, as it is more hygroscopic and may string if not properly dried. On the other hand, standard PETG offers better bridge performance and less stringing, making it more suitable for small or detailed parts.

In technical and professional applications, such as electronics, insulation, robotics, and machinery, PETG V0 offers a clear advantage: verified fire safety and regulatory compliance, especially useful in industrial or domestic environments with electrical hazards.

Although both materials feature a glossy finish and are easy to sand, PETG V0 is slightly more prone to scratches and supports can be harder to remove. Nevertheless, when safety and thermal resistance standards are a priority, PETG V0 is the most reliable choice.

Video 2: Fire resistance comparison between Prusament PETG and PETG V0 filaments.

Conclusion

PETG V0 filament represents an advanced and safe solution in the world of 3D printing, specifically developed to meet the demands of industries where fire protection and technical reliability are critical. Its UL94 V0-certified self-extinguishing behavior, combined with excellent printability, thermal resistance, and durability, make it the best choice for manufacturing functional parts in electronics, robotics, and industrial environments. For any application where safety is as important as performance, PETG V0 offers a unique combination of features that sets it apart from standard PETG and other technical filaments on the market.

Photo 4: Components printed with Prusament PETG V0 filament. Source: Prusa3D

General information
Material	PETG
Format	1 Kg
Density	(ISO 1183) 1.27 g/cm³
Filament diameter	1.75 mm
Filament tolerance	0.02 mm

Printing properties
Printing temperature	230 ºC
Print bed temperature	80 ºC
Cooling fan	50%
Recommended printing speed	Up to 200 mm/s

Mechanical properties
Charpy impact strength	(ISO 179-1) 23 KJ/m²
Tensile strength	(ISO 527) 39.4 MPa
Tensile modulus	(ISO 527-1) 17000 MPa
Flexural strength	(ISO 178) 60 MPa
Flexural modulus	(ISO 178) 1000 MPa

To print correctly with PETG V0, a heated bed at 80 ± 10 °C and an extruder around 230 ± 10 °C are recommended. A special hotend or an enclosed printer is not necessary. As for the print surface, it offers good adhesion on PEI sheets, glass platforms, painter’s tape, or when using glue stick as a release agent. For a good finish, a cooling fan is required with a recommended speed of 50 %.

Print Surface Preparation

Good adhesion begins with a clean surface. For smooth PEI sheets, isopropyl alcohol is not recommended as it may cause excessive adhesion and make part removal difficult. As an alternative, a glue stick can be used as a release agent. On textured or satin surfaces, isopropyl alcohol works very well. Apply it with a perfume‑free paper towel and clean the bed when it’s cool to avoid premature evaporation. Another valid option is warm water with a small amount of dish soap.

Controlled Cooling

Using the layer fan is important to maintain visual quality and detail definition, reducing strings and blobs during printing. For maximum structural strength, it is recommended to print without fan, taking advantage of the high temperature of PETG V0 to improve layer adhesion. It is suggested to print the first layers without fan to avoid warping, and activate the fan at 50 % on subsequent layers.

Filament Drying

PETG V0 has high hygroscopicity, meaning it easily absorbs moisture from the environment. To ensure optimal results, it should be stored in dry conditions. If it gets damp, it is recommended to dry it for 6 hours at 55 °C before use. This will prevent defects such as bubbles, stringing, or poor layer cohesion.

Sanding and Post‑processing

Parts printed with PETG V0 can be dried or wet‑sanded without complications, allowing surface finish improvement or dimension adjustments after printing. Although it cannot be smoothed with acetone like ABS, it allows for simple mechanical post‑processing.

Perimeters and Mechanical Strength

To increase the mechanical strength of a part, it is most effective to increase the number of perimeters rather than the infill percentage. Most of the strength comes from the outer structure, so reinforcing the external walls will have a more significant impact on print durability.