Filament Spectrum PET‑G 1.75 mm — NAVY BLUE — 1 kg

Spectrum PET‑G 1.75 mm — NAVY BLUE — 1 kg is a PETG filament designed for 3D printing applications that require a balance of mechanical strength, chemical resistance and dimensional stability. Supplied on a 1 kg spool and formatted for printers that accept 1.75 mm filament, this navy blue material is intended for producing functional parts, prototypes and mechanical components where durability and consistent extrusion are important. The filament prints within a working temperature range of 230–260°C and is packaged to preserve filament quality during storage and handling.

Advantages

The PETG formulation delivers improved toughness compared with standard PLA, reduced brittleness and good layer adhesion for parts that must withstand mechanical stress. Its chemical resistance makes it suitable for components exposed to solvents or moisture, while the 1.75 mm diameter ensures compatibility with a wide range of desktop and hobby 3D printers. The navy blue colour provides a professional, neutral finish for visible parts and prototypes.

Suitable for

• Functional prototypes and end-use mechanical parts
• Enclosures, brackets and fixtures requiring strength and dimensional stability
• Hobbyist projects and small-batch manufacturing
• Components exposed to moisture or light chemical contact

Key specifications

• Material type: PETG
• Diameter: 1.75 mm
• Colour: Navy blue
• Spool weight: 1,000 grams (1 kg)
• Recommended print temperature: 230–260°C

How to use

Load the 1.75 mm filament into a compatible extruder according to your printer manufacturer's instructions. Set the nozzle temperature within the recommended range of 230–260°C and use a heated bed where possible to reduce warping; a typical bed temperature for PETG is 70–85°C but adjust based on your printer and part geometry. Use moderate print speeds and enable retraction settings appropriate for PETG to minimise stringing. Ensure proper first-layer calibration and bed adhesion method (such as glue stick or PEI surface) for consistent results.

Usage recommendations

For best mechanical properties and finish, print with layer heights between 0.15–0.3 mm, use a cooled but not overly aggressive part fan, and allow printed parts to cool gradually to reduce internal stresses. Store the spool in a dry environment or sealed bag with desiccant to preserve filament quality.