Fused Deposition Modeling Polycarbonate For Strong, Heat-Resistant Engineering Parts

Polycarbonate 3D printed part example
Large Build Volume
Up to 914 × 610 × 914 mm
FDM material

Polycarbonate overview

Stratasys Polycarbonate (PC) is a strong, tough thermoplastic for Fused Deposition Modeling (FDM) parts that need to take knocks and stay rigid in the heat. It is stronger and more heat resistant than ABS and ASA, keeps its toughness under repeated stress instead of turning brittle, and holds its shape in hot vehicle interiors and near equipment that runs warm. Large parts print in one piece with no tooling. Use it for functional prototypes, jigs, fixtures and forming dies, aircraft cabin prototypes, dashboard parts, HVAC ducts and device housings.

How Polycarbonate is manufactured

Polycarbonate is manufactured using Fused Deposition Modeling (FDM) on Stratasys Fortus systems, which extrude the filament layer by layer inside a heated build chamber. The heated chamber gives strong layer adhesion and minimal warpage, critical for large structural parts, and the large build envelope produces big parts in one piece. Combined with its impact and heat resistance, FDM makes Polycarbonate suited to tooling, fixtures and functional housings.

Build volume
914 × 610 × 914 mm
Lead time
2-4 business days
Layer height
0.25 mm
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Industry applications

Industry applications for Polycarbonate

Polycarbonate is the material of choice for functional prototypes and end-use parts that need durability and heat resistance together. It outperforms ABS and ASA on strength and heat resistance, and unlike brittle high-temperature materials, PC maintains toughness under repeated stress.

From rapid prototyping to production runs, teams rely on Polycarbonate to maintain tight tolerances while reducing assembly complexity through consolidated part designs. With no tooling, it also covers low-volume production where moulded PC is not cost-justified. Breakaway and soluble support materials allow complex geometries while keeping the clean surface finish required for functional testing and assembly validation.

With good electrical insulation and resistance to common cleaning and washer fluids, PC serves applications from automotive interiors and aircraft cabin prototypes to medical device housings, electronics enclosures, safety housings and manufacturing tooling.

All industries
White FDM polycarbonate fit-check panel on an aircraft cabin mock-up

Aerospace

Cabin Prototypes & Aircraft Tooling

Aerospace teams use Polycarbonate for cabin component and duct prototypes, avionics covers, and the assembly and drilling fixtures used to install them. Its strength-to-weight ratio and temperature resistance suit fit-check parts and line tooling alike, and Forge has printed curved polycarbonate cabin trim 631 mm long in one piece.

  • Cabin prototypes and fit-check parts
  • Assembly and drilling fixtures
  • Avionics covers
Explore aerospace
White FDM polycarbonate HVAC duct fitted behind a dashboard

Automotive

Interior Components & HVAC Parts

Automotive teams use Polycarbonate for dashboard components, instrument cluster housings, HVAC ducting and headlight housings. Its impact resistance and heat stability suit parts that need both structural integrity and aesthetic quality, holding their shape up to 141 °C under a 1.82 MPa load.

  • Dashboard and instrument cluster parts
  • HVAC ducting and ventilation
  • Headlight housings and brackets
Explore automotive
White FDM polycarbonate forming die on a press brake

Industrial Tooling

Metal Forming Dies, Jigs & Fixtures

Manufacturing teams use Polycarbonate for assembly fixtures, inspection gauges and machine guards that take daily handling. Its strength and toughness let manufacturing aids survive production environments, and with a compressive yield strength of 106 MPa, it carries clamping and forming loads. PC metal forming dies handle production runs of 500 to 1,000 units.

  • Assembly fixtures and alignment jigs
  • Metal forming dies
  • Inspection gauges and machine guards
Explore automotive tooling
White FDM polycarbonate diagnostic housing on a lab bench

Medical & Healthcare

Diagnostic Housings & Lab Equipment

Medical device teams use Polycarbonate for diagnostic equipment housings, device enclosures, instrument handle prototypes and the test fixtures used in verification builds. Housings print in the same polymer as the moulded PC parts they prototype, so form, fit and function are proven before the mould is finalised. For patient-contact parts, choose the ULTEM 1010 certified grade or USP Class VI ClearVue, both tested for biocompatibility.

  • Diagnostic equipment housings
  • Device enclosures and covers
  • Lab equipment components
Explore medical devices
Performance data

Technical performance for Polycarbonate

Values from the Stratasys PC datasheet, tested to the standard listed with each property. Dielectric strength comes from Stratasys's earlier PC sheet.

Mechanical performance

Mechanical properties

Polycarbonate delivers dependable strength and impact resistance for heat-exposed automotive components, aerospace tooling and cabin prototypes, helping teams move from prototype to production with confidence. Its balanced mechanical profile handles demanding load conditions without turning brittle in critical parts.

FDM parts are strongest along the build plane. XZ values describe parts printed on edge and ZX values parts printed upright, so orient the main load path along the layers. Polycarbonate maintains dimensional stability and integrity under repetitive stress, for parts that need precise geometries.

PropertyValue
Tensile Strength, Yield (XZ)ASTM D638
93.9 MPa
Tensile Strength, Yield (ZX)ASTM D638
53.1 MPa
Tensile Strength, Break (XZ)ASTM D638
54.1 MPa
Tensile Strength, Break (ZX)ASTM D638
52.6 MPa
Tensile Modulus (XZ)ASTM D638
2940 MPa
Tensile Modulus (ZX)ASTM D638
2880 MPa
Elongation at Yield (XZ)ASTM D638
4.8 %
Elongation at Yield (ZX)ASTM D638
1.9 %
Elongation at Break (XZ)ASTM D638
12 %
Elongation at Break (ZX)ASTM D638
1.9 %
Flexural Strength at 5% Strain (XZ)ASTM D790, Procedure A
144 MPa
Flexural Strength at Break (XZ)ASTM D790, Procedure A
No break
Flexural Strength at Break (ZX)ASTM D790, Procedure A
85.3 MPa
Flexural Modulus (XZ)ASTM D790, Procedure A
3430 MPa
Flexural Modulus (ZX)ASTM D790, Procedure A
2800 MPa
Flexural Strain at Break (XZ)ASTM D790, Procedure A
No break
Flexural Strain at Break (ZX)ASTM D790, Procedure A
3.1 %
Compressive Yield Strength (XZ)ASTM D695
106 MPa
Compressive Yield Strength (ZX)ASTM D695
106 MPa
Compressive Modulus (XZ)ASTM D695
2600 MPa
Compressive Modulus (ZX)ASTM D695
2560 MPa
Izod Impact, Notched (XZ)ASTM D256
45.8 J/m
Izod Impact, Notched (ZX)ASTM D256
30.7 J/m
Izod Impact, Unnotched (XZ)ASTM D4812
1930 J/m
Izod Impact, Unnotched (ZX)ASTM D4812
143 J/m

Material makeup

Physical properties

Consistent density and surface quality keep critical features in tolerance and downstream finishing predictable. Parts meet specifications once supports are removed, and assemblies fit without secondary rework.

PropertyValue
Specific Gravity (23 °C, moulded plaque)ASTM D792
1.20

Heat performance

Thermal properties

Polycarbonate is amorphous, so it has no melting point; it softens around its glass transition, and its heat deflection temperatures sit close to it. Because it keeps its stiffness almost up to that point, parts stay dimensionally stable through temperature swings, from automotive interiors to industrial equipment exposed to heat sources.

Thermal expansion is listed by direction and temperature range. Use the range that matches the service temperature when sizing clearances and fits.

PropertyValue
HDT @ 0.45 MPa / 66 psi (XY / XZ)ASTM D648, Method B
144.0 / 144.3 °C
HDT @ 1.82 MPa / 264 psi (XY / XZ)ASTM D648, Method B
140.7 / 141.1 °C
Glass Transition Temperature (Tg, inflection point, moulded plaque)ASTM D7426
142.5 °C
Coefficient of Thermal Expansion (XZ, −50 to 120 °C)ASTM E831
49.2 ×10⁻⁶/K
Coefficient of Thermal Expansion (XY, −50 to 30 °C)ASTM E831
51.6 ×10⁻⁶/K
Coefficient of Thermal Expansion (XY, 30 to 75 °C)ASTM E831
35.8 ×10⁻⁶/K
Coefficient of Thermal Expansion (XY, 75 to 130 °C)ASTM E831
11.5 ×10⁻⁶/K
Thermal Conductivity (0 to 90 °C, moulded plaque)ASTM E1952
0.280–0.290 W/m·K
Thermal Diffusivity (0 to 90 °C, moulded plaque)ASTM E1952
0.146–0.189 mm²/s

Functional performance

Electrical properties

Controlled resistivity and dielectric performance suit electrical housings, connectors, insulating features and functional prototypes, and give enclosures in integrated electrical systems dependable insulation.

Dielectric constant is given at 1 kHz and 2 MHz and dissipation factor at 2 MHz, each in two build directions; the dissipation factor helps evaluate dielectric losses in signal-sensitive or high-frequency use cases.

PropertyValue
Volume Resistivity (moulded plaque)ASTM D257
> 6.78×10¹⁴ Ω·cm
Dielectric Constant, 1 kHz (XY / XZ)ASTM D150
2.66 / 2.84
Dielectric Constant, 2 MHz (XY / XZ)ASTM D150
2.53 / 2.69
Dissipation Factor, 2 MHz (XY / XZ)ASTM D150
0.003 / 0.008
Dielectric StrengthASTM D149, Method A
80–360 V/mil

Compatibility data

Chemical properties

Stratasys rates PC good against alcohol, windshield washer fluid, deionized water and weak acids and bases. Oils, greases, fuels, brake fluid, coolant, esters and strong bases are rated limited, meaning short-term exposure will likely degrade the part. Ketones, halogenated solvents, phenols, strong acids and silicone greases are rated poor and will likely attack and aggressively degrade it, and PC is susceptible to stress cracking with certain solvents.

Stratasys ratings are relative and are screening guidance; confirm them with application-specific testing before production release.

ChemicalStratasys rating
Alcohol / ethanol
Good
Windshield washer fluid
Good
Deionized water
Good
Weak acids (pH 3-6)
Good
Weak bases (pH 8-10)
Good
Aliphatic hydrocarbons (e.g. propane, butane)
Limited
Aromatic hydrocarbons (e.g. benzene)
Limited
Esters
Limited
Petroleum fuels
Limited
Motor oil
Limited
Transmission fluid
Limited
Petroleum greases
Limited
Brake fluid
Limited
Antifreeze / engine coolant
Limited
Strong bases (pH > 10)
Limited
Strong acids (pH < 3)
Poor
Ketones (e.g. MEK, acetone)
Poor
Halogenated hydrocarbons (e.g. CFCs)
Poor
Phenols
Poor
Silicone greases and oils
Poor

Compliance

Compliance profile

Stratasys PC holds a UL Blue Card listing at UL 94 HB for horizontal and vertical builds. Aircraft cabin parts that must meet FAR 25.853 call for ULTEM 9085 or Antero 800NA, which carry that data.

Stratasys publishes no biocompatibility, food-contact or sterilization statement for this grade.

StandardStatus
UL 94 flammabilityUL Blue Card E345258: HB at 0.30–0.66 mm minimum thickness, horizontal and vertical builds
HB
Resources

Datasheets and design resources

Datasheets, design guidance and supplier documentation for Polycarbonate.

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Access the most recent datasheet and supporting documentation maintained by our engineering team.

Polycarbonate datasheet

Design guidelines

Explore printable geometry recommendations, wall thickness tips, and finishing playbooks for FDM.

View FDM design guide
Large black FDM part held up between rows of Stratasys FDM printers
Advanced Manufacturing

Built with Precision FDM Technology

Polycarbonate runs on industrial FDM platforms with qualified material profiles, offering reliable performance for functional prototypes and end-use parts and consistent mechanical integrity across every build.

Tolerance
±0.25 mm or ±0.3%, whichever is greater
Production capacity
Multiple parts or assemblies built in each job
Quality control
In-process monitoring and batch traceability for consistent part quality and material properties
Colours & finishes
White or black; support removal, surface finishing, painting and threading
Learn more about FDM technology
Frequently Asked Questions

Frequently asked questions about Polycarbonate

Can't find the answer you're looking for? Reach out to our customer support team.

FDM Polycarbonate combines high impact resistance with a heat deflection temperature of 144 °C at 0.45 MPa, good dimensional stability for precise as-printed parts and good electrical insulation, making it suitable for aerospace and automotive applications.
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Manufacturing technologies
6
Engineering materials
50+
Part quantities
1-500+