Siraya Tech Fibreheart PET-GF 3D Printer Filament, White, 1kg | 15% Glass Fiber Reinforced, UV Resistant, High Strength, Low Moisture Absorption, for Industrial Applications

Product Details

• Unrivaled Strength & Rigidity – 15% glass fiber reinforcement delivers superior mechanical performance, exceeding even PET-CF in impact resistance and durability for demanding projects.
• Weatherproof & UV Resistant – Engineered for outdoor use, Siraya Tech PET-GF filament withstands prolonged sunlight exposure, maintaining its strength and color integrity in harsh environments.
• Exceptional Post-Print Stability: While PET-GF finished parts feature low moisture absorption for superior dimensional stability and consistent mechanical performance in humid environments, the raw filament is sensitive to humidity before extrusion. To ensure a flawless surface finish and maximum layer adhesion, we strictly recommend using a filament dryer or dry box during the printing process.
• Enhanced Heat Resistance – Optional annealing further boosts thermal performance, making PET-GF suitable for higher operating temperatures and challenging thermal applications.
• Professional White Finish – Clean and versatile white color provides a neutral, polished look ideal for prototypes, industrial parts, enclosures, and professional projects where aesthetics matter.

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Nozzle Compatibility

Glass fiber is abrasive and wears brass (and stainless) nozzles out of round, sometimes within a single spool. Use hardened steel or another wear resistant nozzle such as ruby or tungsten carbide. With hardened steel, start about 5 to 10°C hotter than you would with brass.

Based on Bambu Lab and Prusa guidance. More in our glass fiber filament guide and nozzle types guide.