3D Printing Info
Nylon & composites · Material guide

ESD-safe CF nylon

Static-dissipative carbon-filled nylon for electronics tooling. Strong in plane at 84 MPa but only 21.5 MPa in Z — a quarter of XY, the most anisotropic material in this group.

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Understand the material

At a glance

Before you print

Setup difficulty
Expert / industrial hardware only
Nozzle wear
Highly abrasive — carbon-filled nylon composite; Polymaker puts brass nozzle life at roughly 9 h on PA612-ESD
Read conditions and sources ↓
Read the full material overview

Static-dissipative carbon-filled nylon for electronics tooling. Strong in plane at 84 MPa but only 21.5 MPa in Z — a quarter of XY, the most anisotropic material in this group.

Applications

This material is for electronics handling where ordinary rigid plastic would accumulate charge: PCB fixtures, storage supports, housings and production tooling. Its defining property is controlled electrical dissipation, combined with nylon stiffness and heat resistance. Polymaker specifically identifies PCB manufacturing and storage among the intended uses of PA612-ESD. Ordinary carbon-filled nylon is not automatically dissipative; many ordinary nylon composites remain electrically insulating.

The mechanical tradeoff also differs from unfilled nylon. This grade has low elongation and a particularly weak printed Z direction, so thin clips and heavily loaded layer-crossing bosses deserve attention. The finished part and its contact or grounding arrangement need resistance checks: the spool designation alone cannot establish the performance of an entire static-control fixture.

  • PCB manufacturing and storage fixtures ↗

    FDM · Polymaker Fiberon PA612-ESD, carbon-filled PA612 · Manufacturer-listed applications

    Polymaker lists PCB manufacturing, PCB storage and industrial fixtures as intended applications. The point is to combine mechanical support with controlled charge dissipation; this is a manufacturer application recommendation rather than a documented customer installation.

Sources
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Representative catalog values. Check the exact grade and its linked conditions before using a setting.

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Nozzle temperature (°C)

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Full value & sources

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Bed temperature (°C)

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Full value & sources

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Drying

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Full value & sources

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Properties & source data

56 documented fields

Open a topic to explore the complete data. Each value keeps its original conditions, units and dated sources.

Material & market7 fields
ESD-safe CF nylon — Identity & Market
Property and unitPublished value and conditionsSources and dates
Base polymer / chemistryCarbon-filled polyamide compounded to a static-dissipative resistivity — Polymaker's grade uses a PA612 matrix
1 source
Density (g/cm³)1.10 (ISO 1183)
1 source
Typical price (USD/kg)1 kg-equivalent spools cluster near 130
1 source
Price range across brands (USD/kg)130 at Polymaker's 0.5 kg pricing
1 source
Market availability (1–5)Special order, 1–2 makers worldwide
1 source
Spool sizes & diameters1.75 mm; 0.5 kg spools
1 source
Typical applicationsElectronics jigs and trays that also need nylon toughness and heat resistance
1 source
Print settings5 fields
ESD-safe CF nylon — Printing Parameters
Property and unitPublished value and conditionsSources and dates
Enclosure / chamber requirement (1–5)Enclosure required (passive)
1 source
Bed surface & adhesion aidPEI sheet with a glue stick, or a dedicated adhesive such as Magigoo
2 sources
Bed-adhesion difficulty (1–5)Needs a specific surface plus adhesive
1 source
Stringing / oozing tendency (1–5)Moderate — retraction tuning needed
1 source
Overall printing difficulty (1–5)Expert / industrial hardware only
2 sources
Nozzle wear & reliability5 fields
ESD-safe CF nylon — Hardware Wear & Reliability
Property and unitPublished value and conditionsSources and dates
Nozzle hardness required (1–4)Hardened steel required — Polymaker measures brass nozzle life at about 9 h on PA612-ESD and recommends hardened steel or ruby
1 source
Abrasiveness (1–5)Highly abrasive — carbon-filled nylon composite; Polymaker puts brass nozzle life at roughly 9 h on PA612-ESD
1 source
Nozzle clog risk (1–5)High — jams from moisture, heat creep or particles
1 source
Heat-creep / jam sensitivity (1–5)Moderate — good heatbreak cooling needed
1 source
Hotend requirementMay require an all-metal hot end (Simplify3D)
1 source
Moisture & drying4 fields
ESD-safe CF nylon — Moisture Behaviour
Property and unitPublished value and conditionsSources and dates
Moisture absorption (hygroscopicity) (1–5)High (0.8–2 %) — the PA612 matrix sits between PA6 and PA12
2 sources
Effect of moisture on strengthPolymaker publishes dry and wet printed blocks for PA612-ESD itself: at 4.64 % moisture tensile falls 84.3 → 73.6 MPa and modulus 4294 → 3731 MPa
2 sources
Storage requirementSealed below 20 % RH with desiccant
1 source
Hydrolysis at melt temperaturePolymaker specifies an 80–100 °C dry and storage below 20 % RH; no molecular-weight loss figure is published, and the wet data it does publish is conditioning rather than melt hydrolysis
2 sources
Strength & mechanical properties12 fields
ESD-safe CF nylon — Mechanical Properties
Property and unitPublished value and conditionsSources and dates
Tensile strength (XY) (MPa)84.3 ± 2.3 printed XY dry (annealed 100 °C/16 h), 73.6 ± 2.3 conditioned to 4.64 % moisture, ISO 527
1 source
Young's modulus (MPa)4293.7 ± 116.4 printed XY dry and 3730.8 ± 156.2 conditioned, ISO 527
1 source
Elongation at break (%)3.0 ± 0.1 printed XY dry and 4.2 ± 0.4 conditioned, ISO 527
1 source
Charpy impact, notched (kJ/m²)5.9 ± 0.4 printed XY dry and 4.9 ± 0.3 conditioned, ISO 179 notched
1 source
Other impact dataCharpy unnotched 24.1 ± 2.4 printed XY and 4.5 ± 0.2 printed Z (ISO 179)
1 source
Layer adhesion / Z tensile (MPa)21.5 ± 2.7 printed Z dry — only a quarter of XY, the most anisotropic nylon composite here; 19.2 ± 1.6 conditioned
1 source
Brittleness (1–5)Brittle — snaps with little warning; elongation 3.0 % in XY and 1.4 % in Z
1 source
Hardness (scale-specific) (Shore A / Shore D / Rockwell)Rockwell M88 / R117 on extruded PA66-GF30 stock (ASTM D785); no figure is published for a conductive carbon-filled nylon filament
1 source
Creep resistance / sustained load (1–5)Good. Ensinger rates its PA66-CF30 compound for sustained static and dynamic load at 110 °C continuous service; the PA612 matrix here still takes up 4.64 % moisture at conditioning, which softens it
2 sources
Fatigue / repeated-flex resistance (1–5)Good. Ensinger states carbon-filled PA66 compounds have improved fatigue strength in tension, flexure and compression
1 source
Elasticity / flexibility (1–5)Rigid
1 source
Z strength as % of XY (%)26 (printed Z against XY tensile)
1 source
Heat & temperature5 fields
ESD-safe CF nylon — Thermal Properties
Property and unitPublished value and conditionsSources and dates
HDT at 0.45 MPa (°C)157.0 (ISO 75, 0.45 MPa)
1 source
HDT at 1.8 MPa (°C)125.4 (ISO 75, 1.8 MPa)
1 source
Glass transition (Tg) (°C)41.8 (DSC)
1 source
Melting point / Vicat (°C)187.3 melting (DSC); Vicat 190.0 (ISO 306)
1 source
Flammability / UL 94Flammable; no UL 94 rating published for the grades surveyed
1 source
Weather & chemical resistance6 fields
ESD-safe CF nylon — Environment & Chemical
Property and unitPublished value and conditionsSources and dates
UV resistance (1–5)Months outdoors before embrittlement — unstabilised polyamide yellows under UV
1 source
Chemical resistanceWithstands oils, fuels and alkalis
1 source
Food contactNot food-contact certified as filament
1 source
Biodegradability / compostabilityNot biodegradable
1 source
RecyclabilityNot accepted in household plastic collection
1 source
Electrical & ESD propertiesStatic-dissipative — the reason the grade exists; Polymaker's insulating nylon composites sit above 10¹² ohm by contrast
2 sources
Health & safety6 fields
ESD-safe CF nylon — Health & Safety
Property and unitPublished value and conditionsSources and dates
Fume toxicity (1–5)Moderate — measurable VOCs and UFPs, ventilation advised
1 source
VOC emission rate (µg/min)Up to 180 caprolactam, the dominant VOC from nylon and the largest single-VOC rate in the study
1 source
Ultrafine-particle emission rate (particles/min)≈2 × 10⁸ median for nylon — low for particles despite the highest VOC mass measured
1 source
Hazardous species emittedCaprolactam, at up to 180 µg/min from nylon filament
1 source
Ventilation / filtration requirement (1–5)Ventilated room or enclosure recommended
1 source
Dust & fibre handling hazardFibre is bound in the matrix; sanding dust should not be inhaled
1 source
Finishing & post-processing3 fields
ESD-safe CF nylon — Post-Processing
Property and unitPublished value and conditionsSources and dates
Sanding & machiningSands poorly — gums rather than powders
1 source
Gluing & solvent weldingCyanoacrylate; no common solvent welds polyamide
1 source
Vapour / chemical smoothingNo practical vapour smoothing
1 source
Solvents & solubility3 fields
ESD-safe CF nylon — Solvents & Solubility
Property and unitPublished value and conditionsSources and dates
Soluble inFormic acid, phenol, m-cresol and hexafluoroisopropanol dissolve the matrix at 23 °C, leaving the fibre; laboratory reagents.
1 source
Softened or crazed byZinc chloride solutions stress-crack the nylon matrix, alcoholic calcium chloride dissolves it, mineral acids attack it.
1 source
Solvent welding & smoothing agentNone — nylon's only solvents (formic acid, phenol, HFIP) degrade the part, and the fibre blocks surface flow anyway.
1 source
How to read these values

Values describe representative grades, not every spool. Manufacturer datasheets and independent tests retain their source labels and dates. Printed orientation, test method, conditioning and formulation can change results. Unknown values are —. A listed use is not a certification. Shore A, Shore D and Rockwell hardness are separate scales.

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Product listings and datasheets

1 listing

Historical USD/kg snapshots. Read each listing’s sale/from qualifiers, spool mass, source date, shipping and tax notes. Product figures are separate from the material summary.

Browse 1 product from 1 brand
PolymakerFiberon PA612-ESD129.98 USD/kg

$64.99 / 0.5 kg spool = $129.98/kg, Polymaker product catalogue, Aug 2026

Handle fiberon-pa612-esd. Tensile 84.3 MPa printed XY but only 21.5 MPa in Z.

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Polymaker Fiberon PA612-ESD — product-specific figures
Density (g/cm³)1.10 (ISO 1183)
Nozzle temperature (°C)280–300
Bed temperature (°C)40–50
Tensile strength (XY) (MPa)84.3 ± 2.3 (printed XY, ISO 527)
Young's modulus (MPa)4293.7 ± 116.4 dry (printed XY, ISO 527); Z 1784.4
Elongation at break (%)3.0 ± 0.1 dry (printed XY, ISO 527); Z 1.4
Flexural strength (MPa)116.2 ± 5.9 dry (printed XY, ISO 178); Z 39.5
Flexural modulus (MPa)3745.5 ± 292.6 dry (printed XY, ISO 178); Z 1362.3
Charpy impact, notched (kJ/m²)5.9 ± 0.4 dry (printed XY, ISO 179, notched)
Other impact dataCharpy unnotched 24.1 kJ/m² XY, 4.5 kJ/m² Z (printed dry, ISO 179)
Layer adhesion / Z tensile (MPa)21.5 ± 2.7 (printed Z, ISO 527)
Z strength as % of XY (%)26 (printed Z 21.5 vs XY 84.3 dry, ISO 527)
HDT at 0.45 MPa (°C)157.0 (ISO 75, 0.45 MPa)
HDT at 1.8 MPa (°C)125.4 (ISO 75, 1.8 MPa)
Melting point / Vicat (°C)187.3 melting (DSC); Vicat 190.0 (ISO 306)
Flammability / UL 94UL 94 HB at 1.5 mm
Electrical & ESD propertiesSurface resistivity 7.7×10^7 Ω at 280 °C nozzle falling to <10^3 Ω at 320 °C

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