POLMASK PET-GF15 1,75mm ČIERNA 3,0kg

For engineers and makers who need more than standard PETG, this POLMASK PET-GF15 filament blends 15% glass fiber into a PETG base, delivering dramatically higher stiffness and heat resistance while retaining the ease of printing you expect from PETG. The result is a material that bridges the gap between commodity filaments and engineering-grade plastics, enabling functional parts that withstand real-world stress without warping or delaminating.

Highlights

• 15% glass fiber reinforcement for superior rigidity and dimensional stability
• Excellent layer adhesion and low shrinkage for warp-free printing
• High heat deflection temperature (>80°C) for demanding environments
• Precision 1.75mm diameter with ±0.03mm tolerance for consistent extrusion
• Generous 3.0kg spool for extended production runs

In daily use

Load this filament into any direct-drive or well-tuned Bowden printer with a hardened nozzle (0.4mm or larger recommended) and set your hotend to 230–250°C with a bed temperature of 70–90°C. The glass fiber content adds stiffness but also increases abrasiveness, so a wear-resistant nozzle is essential. Parts print with a matte, slightly textured surface that hides layer lines and feels robust in hand. Because of the low shrinkage, large flat parts stay flat, and complex geometries retain their shape. Whether you are producing jigs, fixtures, brackets, or functional prototypes, this filament delivers repeatable results spool after spool.

Full specifications

• Material: PETG with 15% glass fiber
• Filament Diameter: 1.75 mm (±0.03 mm)
• Net Weight: 3.0 kg
• Print Temperature: 230–250 °C
• Bed Temperature: 70–90 °C
• Tensile Strength: >60 MPa
• Flexural Modulus: >4000 MPa
• Heat Deflection Temperature: >80 °C
• Density: 1.3 g/cm³
• Impact Strength: >6 kJ/m²
• Shrinkage: Low
• Layer Adhesion: Excellent
• Typical Applications: Functional prototypes, structural components, industrial parts, jigs, fixtures
• Spool Material: Plastic
• Packaging: Vacuum-sealed with desiccant

Final note

POLMASK PET-GF15 is a reliable choice for demanding applications where standard PETG falls short, offering a balance of strength, heat resistance, and printability.