3D Printer Filament POLYMAKER HT-PLA-GF PA18006 — High-Temperature PLA with Glass Fiber

POLYMAKER HT-PLA-GF PA18006 is a high-temperature PLA filament reinforced with glass fiber designed for FDM/FFF 3D printers. Formulated to deliver improved stiffness, dimensional stability and higher heat resistance than standard PLA, this filament is aimed at functional prototypes, jigs, fixtures and end-use parts that face elevated thermal stress. It requires a nozzle and print settings suitable for fiber-filled materials to achieve consistent extrusion and optimal surface quality.

Advantages

Glass fiber reinforcement increases tensile stiffness and reduces part deformation at raised temperatures compared with typical PLA, while the HT-PLA base enhances heat resistance. The composite shows good dimensional stability for accurate, repeatable parts, and maintains easier printing characteristics relative to some high-temperature engineering polymers. It is compatible with common FDM/FFF workflows when using wear-resistant nozzles and adjusted extrusion parameters.

Suitable for

• Functional prototypes requiring higher stiffness and thermal tolerance
• Jigs, fixtures and tooling components for light industrial use
• End-use parts exposed to moderate elevated temperatures
• Applications where improved dimensional stability is important

Key specifications

• Material type: High-temperature polylactic acid (HT-PLA) with glass fiber reinforcement
• Form: Filament for FDM/FFF 3D printers
• Mechanical behaviour: Increased stiffness and reduced creep compared to standard PLA
• Thermal behaviour: Improved heat resistance and dimensional stability at raised temperatures
• Printer requirements: Wear-resistant nozzle recommended (e.g., hardened steel or ruby) and settings tuned for fiber-filled materials
• Recommended extrusion: Use adjusted temperature and flow settings to accommodate fiber content

How to use

Load the filament into an FDM/FFF 3D printer equipped with a nozzle rated for abrasive materials. Preheat the nozzle and build plate according to manufacturer guidance for HT-PLA and adjust print temperature slightly upward from standard PLA values to ensure proper flow. Increase retraction and flow settings carefully to prevent nozzle clogging and use moderate print speeds to maintain surface quality. Consider printing a calibration tower and test parts to dial in optimal temperature, flow and cooling parameters before producing final components.

Usage recommendations

For best results, use a hardened or wear-resistant nozzle and confirm bed adhesion with an appropriate surface or adhesive. Allow parts to cool gradually to reduce internal stresses and perform post-processing with suitable tools for composite materials. Store filament in a dry environment to prevent moisture absorption that can affect print quality.