Polymaker HT-PLA – PLA filament with resistance up to 150 °C

What is Polymaker HT‑PLA

Polymaker HT‑PLA is a high-tech PLA filament specially designed for 3D printing with high thermal conductivity. It provides leading resistance to deformation at temperatures up to 150 °C – significantly higher than standard PLA (~60 °C) . This makes it ideal for functional and technical applications where stability at higher heat is required.

Key Advantages and Features

• Thermal stability up to 150 °C: Details do not lose shape or structural integrity, even after exposure to heat post-printing .

• Easy PLA printing: Uses standard PLA settings – 210–230 °C extruder, 25–60 °C bed, fan on.

• Fast printing up to 300 mm/s: For accelerated production without compromising detail.

• Satin finish: Smooth, professional surface suitable for both visual prototypes and functional parts.

• Eco-friendly: The base of the material is biodegradable PLA, despite some components that reduce overall biodegradability .

• Wide color palette: Available in 14 vibrant and professional colors – black, white, gray, red, green, yellow, and more .

Recommended settings:

• Extruder temperature: 210–230 °C

• Bed temperature: 25–60 °C

• Print speed: up to 300 mm/s

• Retraction: 1–3 mm at 20–40 mm/s

• Fan: on—ensures detail quality and cooling.

Material drying:

• In high humidity – drying at 60 °C for 6 h will improve quality and prevent bubbles or imperfections.

Density and melt index:

• Density: ~1.287 g/cm³

• Melt index: 22.6 g/10 min (210 °C at 2.16 kg load).

Annealing for maximum durability

Although HT‑PLA does not have a special HDT additive like the GF version, annealing (30 min at 80–100 °C) increases thermal stability and dimensional accuracy . After this process, the material becomes even more resistant at temperatures above the oriented general Tg (~152 °C).

Applications and Use

Polymaker HT‑PLA is a reliable solution for:

• Functional components exposed to heat – covers, boxes, handles, and devices.

• Heat-resistant prototypes and models – achieving higher stability in tests.

• Industrial fittings and assembly parts, where standard PLA loses its shape.

• Hobby and cosplay projects that require a beautiful finish and slight heat resistance of around 50–60 °C.
  

Comparison with Other Materials

• Standard PLA: easy printing, but limits its shape above 60 °C.

• ABS / ASA: more durable, but require a heated chamber, emit odor, and are difficult to print.

• PETG: stronger than PLA, but not as heat-resistant – reaches around 80 °C.

• HT‑PLA: combines the convenience of PLA with increased stability – an ideal compromise for durable and easy details.

Limitations and Considerations

• Layer adhesion: with very thin walls, adhesion between layers may be weaker .

• UV resistance: not modified for prolonged exposure to sunlight .

• Chemical resistance: good to oils and weak acids, but poor to strong acids and alkaline solutions .

Conclusion

Polymaker HT‑PLA‑GF is a premium material for FDM printers – easy to use, durable up to 150 °C, with a stable structure and excellent finish. It is ideal for technical and functional parts where PETG falls short. Despite limitations related to brittleness and layer adhesion strength, after annealing it offers ABS-level thermal resistance, without the complex setup and odors.