Polymaker HT-PLA-GF – glass-reinforced PLA up to 150 °C

Polymaker HT‑PLA‑GF is a PLA-based filament reinforced with glass fiber (~12%) and designed for functional parts with high heat resistance. It withstands up to 150 °C without deformation from its own weight and possesses ABS-like hardness, especially after annealing.

Key Advantages

• Thermal Stability up to 150 °C: No deformation from its own weight – ensures stability even at high temperatures .

• Reinforced with Glass Fibers (~12%): Increased strength, hardness, and durability – suitable for tools, fixtures, and technical parts.

• Fast and Easy Printing: Works with PLA settings – extruder 210–230 °C, bed 25–60 °C, fan on, speed up to 350 mm/s.

• Annealing: Recommended 30 min at 80–100 °C (100 °C recommended) – leads to significant improvement in HDT (ABS-like result).

• Colors: 9 “Power Tool” industrial shades – including yellow, red, green, blue, colored for a strong, industrial look .

Technical Specifications and Settings

• Diameter/Weight: 1.75 mm, 1 kg spool.

• Printing Temperature: 210–230 °C.

• Platform: 25–60 °C.

• Speed: up to 350 mm/s.

• Retraction: 1–3 mm @ 20–40 mm/s.

• Drying: at 60 °C for 6 h (if moisture has been absorbed).

• Nozzle: hardened steel or ruby – necessary due to the abrasiveness of the glass fiber.

Annealing: How and Why

Annealing significantly strengthens HDT, making the material close to ABS in thermal resistance and hardness. Recommended for parts exposed to mechanical and thermal stress.

Usage and Applications

• Functional Details – brackets, fittings, mounting parts, and tools .

• Auto and Electrical Components – resistant to vibrations and temperature.

• Outdoor Applications – good results, but without UV resistance; suitable for household tools .

Comparison with Other Materials

• Standard PLA: resistance ~60 °C – HT‑PLA‑GF reaches 150 °C without deformation.

• ABS: thermal deformation up to 90°C+ but requires an enclosure and has an odor – HT‑PLA‑GF offers similar resistance, easy printing, and no odors.

• PETG and Other PLA Variants: HT‑PLA‑GF provides higher hardness, suitable for structural applications.

Possible Disadvantages

• Abrasive to the Nozzle – requires hardened nozzles.

• Weak UV Protection – not suitable for long-term sun exposure.

• Layer Adhesion – may be limited on thin details.

• Partial Biodegradability – PLA matrix remains, but the glass fibers are not biodegradable .