The spec, the ESD story, the nozzle-temperature-vs-resistivity calibration, and where PA612-ESD actually wins · cross-checked against the manufacturer's TDS V1.0, written by the team that prints it at 300°C calibrated nozzle for the dissipative target band.
PA612-ESD anti static nylon 3D printing service · UK · quoted in 6 hours.
ESD-safe and strong even when damp · for warm-service electronics tooling.
Four quick visuals. Start with which material to pick and where PA612-ESD works; the engineering detail is at the end if you want it.
High-temperature ESD-safe CF nylon · soldering jigs · reflow-near fixtures · automotive electronics handling · electronics-assembly tooling · production-line jigs that need both dissipative class and 157°C HDT
Peak dry stiffness = PA6-CF · driest moisture story = PA12-CF · room-temperature ESD only = PETG-ESD (lower cost) · UL94 V-0 = PA6-FR / PPS · outdoor UV = ASA / UV-stable PC
Copolyamide alternates short (PA6) and long (PA12) chain segments · splits the difference between sibling nylons on moisture and strength. CF aligns with extrusion · drives XY strength + 3.92× anisotropy.
Plan orientation in CAD before slicing · annealing 100°C/16h locks in crystallinity. Wet state anisotropy rises to 2.33× as Z weakens faster than XY.
"James handled the 3D printing for a functional heat resistant component we needed in batch production. He helped dial in the prototype first with their design service, then produced the final batch with really consistent results. Super fast 3D print turnaround and great quality across all the 3D printed parts. Will 100% be coming back."
"We needed a sit-in F1-car for an exhibition to showcase our new racing game. 3D Printing Express took our CAD, optimised it for strength and weight as we had no idea how it all worked! Turned out beautifully. They colour matched the finish and was looking like the real deal. On show day the cockpit ran non-stop, adults and kids jumped in. Multiple visitors asked who built it."
"We ordered a batch of 100 PA-12 parts from 3D Printing Express and could not be happier. Every part arrived consistent, dimensionally accurate, and ready for use straight from the box. The PA-12 gave us the strength and stability we needed for functional testing, with minimal post-processing required. Delivery was on time, communication was excellent, and their QC clearly made a difference."
Engineering-grade strength · 19% stronger than PA12-CF. Drops only 10% to 83 MPa when fully saturated (vs PA6-CF which halves).
High thermal envelope for fuel-system and engine-bay service. Holds 114°C even under 1.8 MPa structural load.
10^5-10^6 Ω/sq surface resistivity at 3DPE-calibrated 300°C nozzle · ANSI/ESD S20.20-2021 dissipative class (10^4 to <10^11 Ω/sq). Nozzle-temperature dependent · varies from 10^7 Ω/sq at 280°C through to <10^3 at 320°C. We calibrate to land in the target band.
Light ESD-safe engineering nylon · 1.10 g/cm³, ~60% lighter than aluminium for the same load path, dissipative conductivity built in.
The use cases where PA612-ESD earns its place · dissipative-class ESD performance up to 157°C HDT, the high-temperature ESD-safe nylon for soldering and reflow-adjacent fixtures, and the only commodity ESD nylon in our range.
Engineering materials are bought on what they can do · sold on what they can't. Pick a different filament if any of these apply to your part.
The calibrated 300°C nozzle setpoint is the lead. PETG-ESD tops out at ~65°C continuous service; plain PA-CF nylons have no static dissipation; PPS-CF flame-rates but is conductive. PA612-ESD is the engineered answer for an electronics-assembly fixture that sees heat (soldering wave-front passes, reflow near-zones) AND demands dissipative-class static control.
PA612 is the polymer used commercially as the inner layer of multi-layer fuel-line tubing. Engine-bay temperatures, hydrocarbon exposure, vibration · all within the chemistry's design envelope.
For PCB assembly, sensor potting, and reflow-oven handling jigs where the part must be both dissipative (to prevent ESD damage to attached components) AND survive the heat envelope of the soldering process. PA612-ESD's 157°C HDT covers the worst-case near-reflow zone where PETG-ESD's ~65°C ceiling would soften and deform.
Workshop environments that are humid or oily · vinyl-coating lines, paint shops, washdown areas. Where PA6-CF would lose stiffness wet and PA12-CF would bend under heat, PA612-ESD holds both.
A side-by-side of PA612-ESD vs the closest non-ESD CF-nylon siblings. PA612-ESD wins on ESD dissipation (the only CF-nylon in our range with a real ESD story); PA12-CF wins on impact toughness and ductility; PA6-CF20 wins on peak dry-state stiffness.
PA612-ESD values from the manufacturer's PA612-ESD TDS V1.0 (ISO 527, ISO 75, ISO 178, ISO 1183). PA12-CF and PA6-CF20 values from the same manufacturer's sibling-grade TDSs · PA6-CF20 water-absorption is approximate (PA6 base polymer is the most hygroscopic of the engineering nylons).
| Property | PA612-ESD (here) | PA12-CF | PA6-CF20 |
|---|---|---|---|
| Tensile strength XY (dry) | 84.3 MPa | 77 MPa | 109 MPa |
| Tensile strength XY (wet) | 73.6 MPa | ~70 MPa | 55 MPa |
| Wet-state tensile retention | 90% | ~90% | 50% |
| Stiffness (Young's modulus, dry) | 4294 MPa | 3311 MPa | 8636 MPa |
| Heat deflection (HDT 0.45) | 157°C | 131°C | 215°C |
| Heat deflection (HDT 1.8) | 114°C | 105°C | ~155°C |
| Equilibrium water absorption | 2.5% | ~1.5% | ~3.5%+ |
| Density (lighter = better) | 1.10 g/cm³ | 1.06 g/cm³ | ~1.13 g/cm³ |
| Heated chamber required? | No · room temp | Preferred | Preferred |
| Anisotropy XY / Z (dry) | 3.92× | 1.48× | ~2.0× |
| Surface resistivity (300°C nozzle) | 10^5-10^6 Ω/sq (dissipative) | >10^12 Ω/sq (insulator) | >10^12 Ω/sq (insulator) |
| Cost per kg (filament) | £60-110 | £90-130 | £70-110 |
| Best for | Outdoor, fuel-system, humid-service CF nylon | Dry-storage stiffness, large parts, lowest moisture sensitivity | Indoor dry bench-test-hero, peak stiffness |
The other common engineering-nylon process decision. SLS is a different machine entirely · different base polymer, near-isotropic strength, different cost structure. Pick the row that matches your job.
| Property | FDM PA612-ESD (here) | SLS PA12 (powder-bed) |
|---|---|---|
| Process | Filament extrusion, layer-by-layer | Powder-bed, laser-sintered |
| Tensile strength XY | 84.3 MPa | 48 MPa |
| Stiffness (Young's modulus) | 4294 MPa | 1700 MPa |
| Tensile anisotropy XY/Z | 3.92× | ~1.1× (near-isotropic) |
| Elongation at break | 2.6% | ~20% (ductile) |
| HDT @ 0.45 MPa | 157°C | 163°C |
| ESD dissipation | Dissipative class (10^5-10^6 Ω/sq) | Not ESD-rated |
| Surface finish · as printed | Layer lines visible · sand or paint for smooth | Matte powder-grain finish, uniform |
| Min wall thickness | 1.5 mm structural | 0.7 mm achievable |
| Internal channels / lattices | Limited (support material) | Excellent (powder is the support) |
| Per-part cost · 1-off | Lower | Higher (machine + powder cost) |
| Per-part cost · batch of 100 | Comparable | Lower (efficient bed packing) |
| Best for | High-temperature ESD fixtures, soldering jigs, reflow-near hardware, automotive electronics handling, ESD production-line tooling | Complex geometry, lattices, near-isotropic strength, batch-of-50+, food-contact certified grades |
This is 3DPE's standard process for PA612-ESD · the equipment and the dried-filament discipline are included, no surcharge. Slicer profile and orientation are tuned per part at quote stage.
File or sketch in. We confirm material, orientation, finish, ESD class requirement, and service temperature.
Engineer reviewed. Lead time + per-unit cost back inside 24 hours.
Wall thickness, anisotropy, fuel/chemical exposure flagged before print.
Filament dried 100°C / 10h pre-print. Hardened steel nozzle. ISO-spec adherence.
100°C / 16h anneal strongly recommended. Sand or 2K paint to spec.
Tracked UK courier, tracking number sent the moment it leaves.
Drying adds 10 hours and annealing adds 24 hours (16h dwell + cooldown) to any of the above. Lead times start when CAD is signed off · CAD round-trips on rev requests can extend the clock.
Outdoor drone-mount bracket for a multispectral camera that spends 8 hours a day in full UK sun, typical RH 70-90%. Weight reduction vs CNC-milled aluminium · the carbon-fibre stiffness held the camera pointing where the flight plan said it should, and the manufacturer's ESD story held up against a season's worth of agricultural-field deployment.
PA612-ESD is a dissipative ESD-safe engineering nylon · PA612 base (nylon 6/12, a long-chain copolyamide of PA6 and PA12 segments) reinforced with carbon nanotubes (CNT, ~3% by weight) plus 10% chopped carbon fibre. The CNT delivers electrostatic dissipation · its percolated network carries static charge across the matrix to ground, preventing build-up that damages sensitive electronics. The CF delivers mechanical reinforcement · 84 MPa tensile XY (annealed), 4294 MPa Young's modulus, 157°C HDT @ 0.45 MPa, 125.4°C HDT @ 1.8 MPa. Critically, surface resistivity is nozzle-temperature dependent · 10^7 Ω/sq at 280°C, 10^6 Ω/sq at 290°C, 10^5-10^6 Ω/sq at 300°C, <10^3 Ω/sq at 320°C. 3DPE calibrates at 300°C nozzle for the dissipative target band per ANSI/ESD S20.20-2021. The headline application is high-temperature ESD-safe service: soldering jigs, reflow-near fixtures, automotive electronics handling, and electronics-assembly tooling that sees heat above PETG-ESD's ~65°C ceiling.
"PA612-ESD is the ESD-safe CF nylon I reach for when a fixture sees heat that PETG-ESD can't handle. PETG-ESD softens at 65°C; PA612-ESD holds 157°C HDT and stays in the dissipative band at 3DPE-calibrated 300°C nozzle. PA6-CF is stronger but has no ESD story; PA12-CF holds dimensions in humidity but isn't dissipative either. The trade is anisotropy · 3.92× XY-to-Z (highest in our range) means you really do need to think about orientation before you slice. And the resistivity is nozzle-temp dependent · we calibrate at every job start. Get those right and PA612-ESD earns its place in the electronics-assembly tool cabinet."
Three questions every engineer Googles when picking PA612-ESD · the copolyamide chemistry, how the CNT + 10% CF dual-reinforcement creates the dissipative network, and what the nozzle-temperature-vs-resistivity curve means for production calibration.
PA612 is a copolyamide alternating short-chain PA6 segments (6 carbons between amides · top row) and long-chain PA12 segments (12 carbons between amides · bottom row). Averages ~9 carbons per amide · half the moisture sites of PA6, double of PA12. Tm 210°C, HDT 157°C, equilibrium water 2.5% · sits mathematically between the parent polymers.
CNT plus 10% chopped carbon fibre (~100-200 micron length) aligns along extrusion direction during deposition · drives the 3.92× XY/Z anisotropy ratio. Higher than PA12-CF (1.48×) because the ~3% CNT + 10% CF loading is denser than PA12-CF's 10%, but lower than PA6-CF20's ~2.0×. Design load paths along XY whenever possible.
PA612-ESD retains ~87% tensile XY wet (84.3 → 73.6 MPa per ISO 527, 4.64% moisture content) · mild moisture sensitivity. PA6-CF loses ~53% (115 → 55 MPa) by comparison. The long-chain PA612 backbone is the practical advantage for ESD-safe service that also sees moisture.
Polyamide 6/12 (PA612, also written PA6/12 or nylon 6,12) is a copolyamide · a single polymer chain that incorporates both PA6 and PA12 repeat units in alternating segments. The 6 refers to the 6-carbon diamine (hexamethylenediamine), the 12 to the 12-carbon diacid (dodecanedioic acid). The result is a chain that alternates short and long segments, splitting the difference between the two parent polymers on every property that matters.
The commercial pedigree is fuel-line tubing. PA612 is the engineering polymer used as the inner layer of multi-layer automotive fuel-line systems specifically because of its resistance to extraction by petrol, diesel, E85 ethanol-blends, and engine oils over decades of service. The same hydrocarbon-resistance carries through to the FDM-printed grade · engine-bay fixturing, fuel-system brackets, and oil-environment service parts inherit the chemistry's pedigree.
Every amide linkage in a nylon chain is a potential hydrogen-bonding site for water molecules. More amides per unit length means more water-attackable sites. PA6 has one amide every 6 carbons (the most). PA12 has one every 12 (the fewest). PA612 averages roughly one amide every 9 carbons · materially fewer than PA6 but more than PA12. The practical result: 2.5% equilibrium water absorption (TDS value) vs 3.33% for PA6 and 1.5% for PA12.
The wet-state property retention follows the same pattern. PA612-ESD holds 90% of dry tensile when fully saturated (84.3 → 73.6 MPa). PA6-CF20 halves to 50% (109 → 55 MPa). PA12-CF holds dimensions even better but starts from a lower mechanical baseline. PA612-ESD is the only commodity CF nylon where high mechanical AND good wet retention coexist.
Our stocked grade is 15% carbon fibre by weight, chopped to short segments (typically 100-200 microns long, not continuous strands). The fibres orient along the print-head direction as the molten filament extrudes. That orientation drives the 3.92× XY/Z anisotropy ratio · XY (in the print plane) inherits the fibre-alignment strength; Z (layer-to-layer) relies on polymer-to-polymer bonding with minimal fibre bridging across layers.
On the nozzle-temperature-vs-resistivity behaviour · the TDS V1.0 publishes ring-probe surface resistivity data at four nozzle setpoints (280°C, 290°C, 300°C, 320°C) and two specimen orientations (primary 0° and secondary 45°/90°). Resistivity spans four orders of magnitude across the temperature window. At 280°C, the CNT network is under-percolated · resistivity sits at 10^7 Ω/sq, on the insulating side of the dissipative band. At 320°C, the CNT network is fully percolated AND the chopped CF reorients more freely · resistivity drops below 10^3 Ω/sq, into the conductive class. The dissipative target band (10^4-10^11 Ω/sq per ANSI/ESD S20.20-2021) sits cleanly in the 290-310°C window. 3DPE calibrates every PA612-ESD print run to 300°C nozzle setpoint with a dial-in coupon at job start · this is the manufacturer's recommended target and the documented dissipative class. For ESD-compliance-critical work, the surface-resistivity dial-in is itemised on the quote.
Values measured to the ISO standards cited in the right-hand column, on the manufacturer's own injection-moulded test specimens · directly comparable to other engineering thermoplastics.
| Property | XY · print plane | Z · build axis | Wet · XY / Z · post-immersion | Unit | Standard |
|---|---|---|---|---|---|
| Mechanical · dry status | |||||
| Tensile strength | 84.3 | 21.5 | 73.6 / 19.2 | MPa | ISO 527 |
| Young's modulus | 4294 | 1784 | 3731 / 1344 | MPa | ISO 527 |
| Elongation at break | 3.0 | 1.4 | 4.2 / 1.9 | % | ISO 527 |
| Flexural strength | 116.2 | 39.5 | 102.6 / 40.5 | MPa | ISO 178 |
| Flexural modulus | 3746 | 1362 | 3056 / 1420 | MPa | ISO 178 |
| Charpy impact (notched, XY) | 5.9 | · | 4.9 | kJ/m² | ISO 179 |
| Charpy impact (unnotched, XY) | 24.1 | · | · | kJ/m² | ISO 179 |
| Thermal | |||||
| Heat deflection (HDT @ 0.45 MPa) | 175 | °C | ISO 75 | ||
| Heat deflection (HDT @ 1.8 MPa) | 114 | °C | ISO 75 | ||
| Glass transition temperature (Tg) | 41.8 | °C | DSC, 10°C/min · Fiberon PA612-ESD TDS V1.1 | ||
| Melting temperature (Tm) | 187.3 | °C | DSC lab figure · not the print temperature or the in-service softening limit (see HDT/Tg) | ||
| Crystallisation temperature (Tc) | 180.3 | °C | DSC, 10°C/min | ||
| Decomposition temperature | 441.0 | °C | TGA, 20°C/min | ||
| Physical | |||||
| Density | 1.10 | g/cm³ @ 23°C | ISO 1183 | ||
| Carbon-fibre content | CNT + 10 | % by weight | manufacturer spec | ||
| Equilibrium water absorption | 2.5 | % | manufacturer absorption curve | ||
| Melt flow index | 9.9 | g/10min (260°C, 2.16kg) | ISO 1133 | ||
| UL94 flame rating | HB at 1.5mm | · | UL 94 | ||
| Surface resistivity | >10¹² | Ω/sq (insulator) | ANSI ESD S11.11 | ||
| Surface resistivity @ 300°C nozzle | 10^5-10^6 (dissipative · ANSI/ESD S20.20-2021) | Ω/sq | Ring-probe (TDS V1.0) | ||
| Processing | |||||
| Recommended print temperature | 250-300 | °C | manufacturer spec | ||
| Recommended bed temperature | 40-50 | °C | manufacturer spec | ||
| Chamber requirement | Room temperature (no heated chamber required) | · | manufacturer spec | ||
| Drying conditions | 100°C / 10h before printing | · | manufacturer spec | ||
| Annealing | 100°C / 16h post-print (strongly recommended) | · | manufacturer spec | ||
| Nozzle material | Hardened steel or ruby (brass ~9h life) | · | manufacturer spec | ||
Tensile load > 30 MPa: orient with load in the XY plane (Z bonds are 47% weaker · 48 vs 92 MPa, anisotropy 3.92×). Below 20 MPa, orientation is less critical. Anisotropy rises to 2.33× in wet service.
Sub-1 mm walls can snap cold under load · 0.8 mm is cosmetic only · 1.5 mm or thicker for engineering use. The ~3% CNT + 10% CF loading is stiffer than 10% CF in PA12-CF · thin walls go brittle faster.
Above 45° from vertical needs support material · plan part orientation to keep critical surfaces support-free.
Tight-tolerance ±0.1 mm achievable on small parts with calibration · ask before finalising CAD.
Removes 0.1-0.3 mm per surface · pre-paint prep or stand-alone hand-feel polish.
Manufacturer states annealing is strongly recommended for PA612-ESD · 100°C / 16h. Anneal IF service temp > 60°C, sustained load, thermal cycling, or humid service. Anneal also stabilises the ESD resistivity (post-anneal samples sit more reliably in the dissipative band). Costs ~0.6-0.65% shrinkage XY/Z.
Adds 0.05-0.15 mm per surface · sand 800 grit first, primer + topcoat · for colour-matched exterior parts.
Vapour fuses the matrix without flattening exposed carbon · glossy but textured · sand + paint instead.
Every value on this page traces to an ISO test method or the manufacturer's ring-probe surface-resistivity protocol. ESD classification is per ANSI/ESD S20.20-2021. We calibrate every PA612-ESD print run at job start with a dial-in coupon to confirm we land in the dissipative target band.
No offshore subcontracting. Files, prints, and couriers all stay in the UK.
Send three things: peak load (N or MPa), peak service temperature (°C), and ESD class requirement (conductive / dissipative / shielding · ANSI/ESD S20.20-2021). our team come back inside 24 hours with material, orientation, ESD calibration plan, and post-process recommendation · if PETG-ESD, PA12-CF, or PA6-FR fits better, we say so.
our team review every brief before quote. No ticket queue, no account managers.
According to the Fiberon PA612-ESD TDS, PA612-ESD reaches Young's modulus 4294 ± 116 MPa (XY) per ISO 527 with HDT 157 °C @ 0.45 MPa and ESD-dissipative surface resistivity 1.0E+4 to 7.4E+7 Ω across nozzle 280–320 °C.
Two reasons. First, the carbon-nanotube + 10% chopped CF dual-reinforcement creates a percolated conductive network through the PA612 matrix · the CNT carries static charge across the matrix, the CF carries the mechanical load. Surface resistivity sits in the dissipative band (10^5-10^6 Ω/sq) at 300°C nozzle calibration · within ANSI/ESD S20.20-2021 dissipative class (10^4 to <10^11 Ω/sq). Second, the PA612 base polymer holds HDT 157°C @ 0.45 MPa and Tg 41.8°C, which is well above PETG-ESD's ~65°C ceiling. For soldering jigs, electronics-reflow fixtures, automotive electronics-handling tooling, and any ESD-safe part that sees heat above 65°C, PA612-ESD is the right grade.
Yes · density 1.10 g/cm³ vs PA12-CF at 1.06 g/cm³. The TDS V1.0 publishes 1.10 g/cm³ for this specific grade · and the chemistry supports it (~3% CNT + 10% CF loading at 1.8 g/cm³ raises composite density less than 25% glass-fibre at 2.5 g/cm³ in PA6-GF which is why PA6-GF density is 1.20). Lowest-density CF engineering nylon on our shelf.
PA612-ESD wins on ESD dissipation (10^5-10^6 Ω/sq at 300°C nozzle vs >10^12 Ω/sq insulative for PA12-CF), strength (84 vs 77 MPa XY tensile dry), stiffness (4294 vs 3311 MPa Young's modulus), and HDT (157 vs 131°C at 0.45 MPa). PA12-CF wins on moisture stability (1.5% vs 2.5% water absorption), anisotropy (1.48× vs 3.92×), and ductility (4% vs 3.0% elongation at break XY). For ESD-safe high-temperature fixtures, PA612-ESD. For non-ESD impact-loaded brackets, PA12-CF.
PA6-CF wins on absolute strength (109 vs 92 MPa XY tensile dry) and HDT (215 vs 157°C at 0.45 MPa). PA612-ESD wins on moisture tolerance · PA6-CF loses 50% of its tensile strength wet (109 → 55 MPa) while PA612-ESD loses only 10% (84.3 → 73.6 MPa). For any application that sees humidity in service, PA612-ESD holds dimensions and strength better. PA6-CF is a bench-test hero with a humidity asterisk.
No · the TDS specifies room temperature chamber. PA612-ESD prints reliably on a build plate at 40-50°C without enclosure heating · same as PA6-GF. This is the practical advantage vs PA12-CF (typically prefers some chamber heating to suppress warp on large parts) or PC (needs 70-100°C chamber). PA612-ESD runs on standard open-frame industrial FDM.
The TDS V1.0 lists Tg as N/A · not separately published for this specific grade. Literature values for PA612 base polymer range from 46°C (polymerprocessing.com) to ~70°C in CF-filled variants. For practical design margin, assume Tg 41.8°C · loaded parts above this temperature transition from glassy to leathery. HDT at 0.45 MPa is 157°C (3-minute load test) and HDT at 1.8 MPa is 114°C. Sustained load above 90-100°C is a red-line.
Hardened steel or ruby. Carbon-fibre is abrasive · brass nozzle lifetime is ~9 hours per the TDS, same as PA12-CF and PA6-CF. We run hardened steel on every CF print as standard, included in the quote · no surcharge.
Excellent for hydrocarbons · the long-chain PA612 polymer is used commercially as the inner layer of multi-layer fuel-line tubing in modern automotive systems specifically because of its low extractables under petrol, diesel, ethanol-blend fuels, and engine oils. Native pass for fuel chemistry. Limited against acetone, MEK, and strong alkalis. Fails against strong acids, formic acid, chlorinated solvents, and sustained hot water above 80°C.
| Chemical / family | Resistance | Notes |
|---|---|---|
| Petrol / gasoline | Excellent | PA612 commercial fuel-line inner-layer chemistry |
| Diesel | Excellent | Including biodiesel and E85 ethanol-blends |
| Engine oil, gear oil, hydraulic oil | Excellent | All standard service grades |
| Brake fluid (DOT 3 / 4 / 5.1 glycol) | Excellent | DOT 5 silicone also fine |
| Coolant / antifreeze (ethylene glycol) | Excellent | Including diluted service coolant |
| Methanol, ethanol, IPA | Excellent | Cleaning + assembly OK |
| Detergents, soap, weak alkalis | Excellent | Workshop wash-down OK · better than PA6 chemistry |
| Sea water / saline solution | Good | Better than PA6 thanks to long-chain backbone · short-to-medium term immersion |
| Hydrogen peroxide ≤ 6% | Good | Stronger H₂O₂ attacks long-term |
| Acetone | Limited | Surface attack + softening over hours |
| MEK, toluene, xylene | Limited | Brief contact only · no soak |
| Strong alkalis (NaOH > 10%) | Limited | Polymer-chain hydrolysis risk |
| Weak organic acids (acetic, citric) | Limited | Slow attack over weeks |
| Hot water (sustained > 80°C) | Limited | Hydrolysis risk · better than PA6 but worse than PA12 |
| Strong acids (sulphuric, HCl, nitric) | Fails | Polymer chain breakdown |
| Chlorinated solvents long-term (TCE, DCM) | Fails | Solvent crazing + dissolution |
| Phenols | Fails | Strong PA solvent |
| Formic acid | Fails | Industry-standard PA dissolution solvent |
Ratings reflect long-term immersion / sustained exposure. Brief contact (cleaning wipes, splashes) is more forgiving. For mission-critical chemical service, request a 7-day immersion sample before committing the design.
Yes · the TDS strongly recommends 100°C for 16 hours post-print. Annealing relaxes residual print stresses, raises crystallinity, and gains 10-20% tensile and HDT. Causes ~0.65% XY and ~0.6% Z shrinkage (per the manufacturer shrinkage block · 40mm specimen). For load-bearing engineering parts, annealing is the recommended default.
Standard PA612-ESD is rated UL94 HB at 1.5mm wall · the lowest horizontal-burn rating, but rated. For UL94 V-0 / V-2 self-certification we stock dedicated flame-retardant grades on request, including PA6-FR which is the same base polymer family with a flame-retardant additive package.
Yes · this is the headline application. Surface resistivity at 3DPE's calibrated 300°C nozzle temperature is 10^5-10^6 Ω/sq · within the ANSI/ESD S20.20-2021 dissipative class (10^4 to <10^11 Ω/sq). The CNT (carbon nanotubes) network carries the static charge across the matrix. CRITICAL: PA612-ESD's resistivity is nozzle-temperature dependent. At 280°C nozzle it sits at 10^7 Ω/sq (insulating side of dissipative); at 320°C it crosses into conductive (<10^3 Ω/sq). 3DPE calibrates at 300°C nozzle for the reliable dissipative band · this is the manufacturer's recommended target window. If you need room-temperature-only ESD service at lower cost, PETG-ESD is the alternative.
Continuous service: -40 to ~90°C (Tg-limited). Short-term load: up to ~157°C (HDT @ 0.45 MPa, 3-minute test) · suitable for soldering wave-front passes and reflow-oven near-zone fixtures. ESD: dissipative class (10^5-10^6 Ω/sq) at 3DPE-calibrated 300°C nozzle. Humid environments: 87% tensile retention wet (84.3 → 73.6 MPa) · stronger moisture story than PA6-CF. Fuel-resistant PA612 chemistry. Not for steam autoclave (Tg too low), not for live hinges (CF brittleness), not for UV-critical outdoor parts (use PA612-CF · sister grade · or ASA).
You'll hear back from our team within 24 hours · with material-fit check, ISO-referenced spec, and lead time on every quote.