Gembird PETG filament red 1 kg

Durable and universal PETG filament in a rich red color for reliable 3D printing.

The filament Gembird PETG red 1 kg is an ideal choice for users looking for a combination of strength, toughness and relatively easy printing. PETG is a material similar to PET (bottles), but modified for 3D printing – it combines the advantages of PLA (easy printing) and ABS (better mechanical and thermal resistance).

Thanks to its low shrinkage and good layer adhesion, it is suitable for printing larger and functional parts, such as brackets, mounts, covers, technical components and designer models in red.

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Main advantages of Gembird PETG filament

• High strength and toughness – more durable than PLA, suitable for functional and mechanically stressed parts.
• Low shrinkage during printing – suitable for larger objects without significant warping.
• Excellent layer adhesion – strong layer bonds, better resistance to cracking.
• Smooth extrusion without nozzle clogging – Gembird filaments are designed to melt steadily in the hotend without creating plugs.
• Minimal odor during printing – more comfortable and cleaner printing than with ABS.
• Universal use – compatible with most FDM/FFF 3D printers for 1,75 mm diameter.

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Recommended applications

Red PETG from Gembird is suitable for:

• Functional prototypes and technical parts
• Holders, brackets, assembly jigs
• Electronics enclosures, boxes, blanks
• Decorative and designer models in rich red
• Larger models, where low shrinkage is important

Thanks to its good temperature resistance (approx. up to 70–75 °C), PETG is more suitable for practical use than PLA, especially where higher temperatures may occur (e.g. in a car interior in summer, closer to heat sources, etc.).

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Printing recommendations

To achieve the best results, the following is recommended for this PETG filament:

• Nozzle temperature: approx. 220–260 °C (a good starting point is usually 235–245 °C – depends on the printer)
• Bed temperature: approximately 70–90 °C
• Print speed: 30–60 mm/s
• Layer height: 0,1–0,3 mm
• Cooling: moderate, approx. 30–50 % (too much cooling can worsen layer adhesion)

For better adhesion, we recommend using a PEI or textured build plate or an adhesive aid (glue stick, special spray or bed adhesive for PETG). For larger models, a brim or raft can help.

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Storage and maintenance of filament

PETG is more sensitive to moisture than PLA. To maintain optimal print quality:

• store the filament in a dry place, ideally in a resealable bag with a desiccant (silica gel),
• protect it from direct sunlight and elevated temperatures,
• in case the filament gets moist, dry it (e.g. in a filament dryer at around 60–65 °C for several hours).

Properly stored PETG will provide consistent results and a smooth surface finish of prints throughout the entire use of the spool.

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Technical specifications

Parameter	Value
Material	PETG
Color	red
Filament diameter	1,75 mm ± 0,05 mm
Filament weight	1 kg (net weight on spool)
Recommended printing temperature (nozzle)	220–260 °C
Recommended bed temperature	approx. 70–90 °C
Density at 240 °C	1,27 g/cm³
Melt flow index (MFI)	20 g/10 min (200 °C / 5 kg)
Glass transition temperature / heat deflection	~75–80 °C
Spool dimensions (approximate)	diameter approx. 200 mm × width ~67 mm × central hole ~53–60 mm

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Why choose Gembird PETG red 1 kg

• Excellent price / performance ratio – affordable PETG with solid quality.
• Trusted manufacturer – Gembird is an established brand in accessories and 3D printing materials.
• Versatile material – suitable both for hobby use and for prototyping and light technical applications.

The filament Gembird PETG red 1 kg is a great choice if you need a reliable, durable and universal material in an attractive red color, which can be handled even by a less experienced user after basic tuning of print settings.

Key features:

• Durable PETG filament in a rich red color for universal use
• High strength and toughness, better resistance than PLA
• Low shrinkage during printing – suitable for larger and functional parts
• Very good layer adhesion for strong and stable prints
• Smooth melting and extrusion, designed to minimize nozzle clogging
• Minimal odor during printing, suitable even for less ventilated spaces
• Compatible with most FDM/FFF 3D printers for 1,75 mm filament
• Excellent price / performance ratio from the established brand Gembird