Introducing Black Carbon Fiber HT PLA Composite. Printed prototypes and end use parts using Protopasta Carbon Fiber HTPLA are characterized by exceptional stability of form and potential use up to 155 deg C (310 deg F) when heat treated.
Carbon Fiber HTPLA is optimized for heat treating (also known as annealing or crystallizing) for higher temperature use. Heat treating creates a more crystalline molecular structure for maintaining stiffness to near melting, thus extending the useful range of HTPLA, but crystallization also creates shrinkage. HTPLA parts should be scaled in slicer to compensate for shrinkage when heat treating.

Material Data
Base resin: HTPLA - Heat Treatable PLA
Particle size: less than 250 microns (0.25mm)
Odor: low or no
Density: Approx. 2.30 g/cc
Length (500g): 97m (1.75mm) and 36m (2.85mm)
Heat treating: 110C (225F) for 10 min or as required for the desired result
Total loss of stiffness (before heat treat): 50-60C (Tg)
Total loss of stiffness (after heat treat): 150-175C (melting)
Dimension change (before heat treat): 0% X/Y/Z
Dimension change (after heat treat): 1.5% shrink X/Y and 1% growth Z typical but please calculate and confirm for your specific print and process
Printer Settings
Speed: 10-20 mm/s 1st layer, 20-80 mm/s rest of part
Nozzle Set-point: 185-215C (hottest on 1st layer for best adhesion)
Nozzle Actual: maintain set-point, reduce speed if less than
Nozzle Type: Standard or wear-resistant for extended use
Nozzle Diameter: 0.6mm or larger preferred, 0.4mm okay with 0.25mm minimum for experts
Layer thickness: 0.15-0.20mm recommended for a balance of quality, reliability, and productivity
Bed Temperature: Room-60C (over 60C can worsen w