Bambu Lab PC FR Filament 1.75mm 1kg

$62.00

Flame-retardant polycarbonate, carrying a UL94 V-0 classification — Bambu's top flame-retardant rating. Where standard PC is merely self-extinguishing, PC FR is formulated and certified for it, which is the distinction that matters when a part goes inside electrical equipment, a control cabinet or a vehicle.

Bambu's stated applications are industrial components, protective casings and high-temperature environments in automotive, electronics and manufacturing.

Enclosure required, and no AMS Lite. 45–60°C chamber and a 90–110°C bed, same as standard PC. Not compatible with the open-frame A-series.

At a glance

Density	1.18 g/cm³
Nozzle temp	260–280°C
Bed temp	90–110°C
Enclosure	Required — 45–60°C chamber
Print speed	Up to 300 mm/s
Nozzle	Standard stainless is fine not 0.2mm on the P2S
Compatibility	AMS Lite AMS / AMS 2 Pro

PC FR against standard PC

Impact resistance is much better — 55 kJ/m² against standard PC's 34.8. Adding the flame-retardant package has made this the tougher of the two on the unnotched figure, which is not what you'd usually expect.

Strength and heat are slightly lower but close — tensile 60 MPa against 62, heat deflection 108°C against 117°C. In most applications you would not notice the difference.

It is less stiff and less stretchy — 1670 MPa against 2110, and breaking elongation 2.4% against 3.8%. Parts flex a little more but crack sooner once they start to go.

It also picks up half as much water: 0.12% against 0.25%.

The number to design around

Layer bonding is this material's weak point, badly. Tensile strength across layers is 21 MPa against 60 in plane — roughly a third. Bending strength halves, 47 against 90. That Z-direction gap is one of the widest of anything we stock.

For a casing or bracket, orient so that load and impact run along the layers, never across them. A part designed on the 60 MPa figure but printed in the wrong orientation will fail at around a third of the expected load.

Printing it well

Glue is required, on a Smooth or Textured PEI plate. The Cool Plate SuperTack is not compatible.

Annealing is endorsed here, unlike most of our range: 85–100°C for 6 to 12 hours. Larger parts may still distort, so test first.

Turn supports on, ventilate the room, and note printed parts are not food-contact grade.

On certification: Bambu rate this material UL94 V-0 and supply the certificate in the downloads on this page. If your application needs a rating recognised by a particular standards body, check that certificate against your requirement before committing — we can send it over ahead of purchase if that helps.

Storage

Bambu specifies under 20% RH, sealed with desiccant, and 80°C for 8 hours to dry.

Bambu's own usage guide covers warping, chamber temperature and drying in more depth: ABS / ASA / PC Usage Guide

Full specifications

Printing

Nozzle temperature260–280°C

Nozzle size0.2–0.8 mm
except 0.2 mm on P2S

Bed temperature90–110°C

Chamber temperature45–60°C

Build plateSmooth or Textured PEI, with glue
Cool Plate SuperTack

Print speedUp to 300 mm/s

Retraction0.8–1.4 mm at 20–40 mm/s

Drying & storage

Drying80°C for 8 hours

HumidityUnder 20% RH, sealed

Water absorption0.12%

Annealing85–100°C for 6–12 hours

Thermal & fire

Density1.18 g/cm³

Glass transition145°C

Heat deflection108°C at 1.8 MPa
113°C at 0.45 MPa

Flame ratingUL94 V-0

Mechanical

Tensile strength (X–Y)60 ± 4 MPa
21 ± 3 MPa (Z)

Young's modulus (X–Y)1670 ± 40 MPa

Bending strength (X–Y)90 ± 4 MPa

Impact strength (X–Y)55 ± 2.1 kJ/m²
8.4 ± 1.3 notched

Figures from the Bambu Lab PC FR technical data sheet v1.0, with the V-0 rating, nozzle and compatibility detail from Bambu's ABS / ASA / PC usage guide. Note the Z-direction tensile figure — layer orientation matters more with this material than most.