Fillamentum PETG is a PETG filament aimed at functional details and prototypes when you are looking for higher strength and better resistance compared to base PLA solutions, without complicating the process with a material that has a high risk of warping. The material is positioned as "universal" for real applications: good interlayer adhesion, low shrinkage, and chemical resistance to water, acids, bases, and alcohols.
Key advantages
- Diameter: 1.75 mm; tolerance: ±0.05 mm.
- Temperature resistance: up to 70 °C
- Low distortion and shrinkage + strong interlayer adhesion
- Recommended settings: bed 65–75 °C (base setting);
- Compatibility with AMS
What PETG is and who it is for
PETG (polyethylene terephthalate glycol) is a co-polyester that combines strength, flexibility, and relatively predictable 3D printing. In Fillamentum's range, PETG Ghost White is a suitable choice for engineering prototyping, enclosures, functional fixtures, and details for use in environments with moderately elevated temperatures, where the manufacturer indicates temperature resistance up to 70 °C.
If you are looking for material for everyday details with a good finish (glossy/matte according to the settings), low tendency to warp, and stable interlayer adhesion, PETG is a practical compromise. Fillamentum complements this with clearly described ranges for base and "high speed" settings, which helps you step onto a working starting point instead of starting from scratch.
Technology and quality of the result in 3D printing
The quality with PETG is most often "determined" by three factors: nozzle temperature, cooling control, and filament humidity. The manufacturer provides separate ranges for base printers and for high speed printers, including options for glossy and matte finish. This is important because at different temperatures, PETG can transition from a smooth, shiny layer to a more diffuse/matte appearance without changing the material.
- Base setting (non-high-speed): temperature 230–275 °C, bed 65–75 °C, speed 40–60 mm/s, fan 0–30%.
- High speed (glossy): 255–285 °C, bed 65–80 °C, speed 100–300 mm/s, fan 0–40%.
- High speed (matte): 235–255 °C, bed 65–80 °C, speed 100–300 mm/s, fan 0–40%.
From the perspective of dimensional stability, the manufacturer declares a diameter of 1.75 mm and tolerance ±0.05 mm. This directly affects the consistency of extrusion and the repeatability of layers, especially in longer prints.
Performance and working process
The working process with Fillamentum PETG Ghost White can be structured into a short routine that minimizes typical risks for PETG (strings/"stringing", buildup on the nozzle, unstable first layer):
- Drying if needed: for PETG, a recommendation of 65 °C for 4 hours is indicated.
- Bed preparation: the manufacturer indicates surfaces such as PEI and glass/mirror and recommends adhesives (Magigoo, 3Dlac, PVA glue) as appropriate.
- Mode selection: basic or high speed (gloss/matte) according to the goal for surface appearance and the machine.
- Tuning: start from the manufacturer's ranges and adjust temperature/fan if you are looking for a specific finish or if you have strings.
Practical advice: if you use high speed profiles, take the ranges as a starting framework, not as "one universal" value. In real conditions, the extrusion temperature may behave differently with different hotends, thermistors, and nozzle geometries.
Compatibility and ecosystem
Fillamentum declares AMS compatibility for PETG and emphasizes that the spool works with various feeding systems.
For preparation and optimization of your process, we recommend:
Design and daily operation: spool, quantities, repeatability
The manufacturer specifies standard options for diameter and information on mass/length. Values for the product are given for 750 g and 1000 g, as well as reference lengths by diameter/weight (for example, 255 m for 1.75 mm at 750 g and 325 m for 1.75 mm at 1 kg).
Important: the specific available weight depends on the selected variation in the store; if you specify diameter/weight when ordering, refer to the chosen option in the product.
Professional scenarios (example applications)
- Functional fixtures and jigs: low shrinkage and good interlayer adhesion help achieve more predictable dimensions and less manual adjustment.
- Housings and covers for electronics: the manufacturer notes use for electrical/electronic equipment.
- Details with chemical contact: declared resistance to water, acids, bases, and alcohols (testing for the specific solution/concentration is recommended).
- Prototypes with visual requirements: ability to target gloss or matte through different temperature ranges and modes.
- Environment with moderately elevated temperature: declared temperature resistance up to 70 °C (useful for “warm” areas, but not for high-temperature applications).
Limitations and best practices
- Humidity: the manufacturer emphasizes the need for controlled drying and quick storage after drying, as a warm spool can absorb moisture back very quickly.
- Strings (stringing) and “oozing”: often intensified at excessively high temperatures or with moist material; start from the ranges and adjust retraction/temperature according to the machine.
- Bed adhesion: use a suitable surface and adhesive if necessary (especially for large flat details).
- Storage: recommendation for 15–25 °C and low humidity (container/bag with desiccant).
Technical specifications
| Material | PETG (polyethylene terephthalate glycol) |
|---|---|
| Color | Ghost White, Black Soul |
| Diameter | 1.75 mm; |
| Diameter tolerance | ±0.05 mm |
| Printing temperature (base) | 230–275 °C |
| Bed temperature (base) | 65–75 °C |
| Speed (base) | 40–60 mm/s |
| Cooling (base) | 0–30 % |
| High speed (gloss) – temperature | 255–285 °C |
| High speed – bed | 65–80 °C |
| High speed – speed | 100–300 mm/s |
| Drying (recommendation) | 65 °C for 4 h |
| Temperature resistance | up to 70 °C |
| Chemical resistance (declared) | to water, acids, bases, and alcohols |
| Weight / length (reference values) | 750 g (+210 g spool) / 255 m (1.75 mm, 750 g); 1000 g (+210 g spool) / 325 m (1.75 mm, 1 kg) |