| HS Code | 996929 |
| Material Name | 3D Systems Accura Phoenix Plastic for SLA Systems |
| Color | Amber |
| Volume Resistivity Ohm Cm | 1.0 x 10^15 |
As an accredited 3D Systems Accura Phoenix Plastic for SLA Systems factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Supplied as 1 kg in a light-resistant poly bottle with screw cap, hazard labels, and clear batch information for safe handling. |
| Container Loading (20′ FCL) | Palletized drums/cartons of 3D Systems Accura Phoenix Plastic for SLA Systems, securely loaded, braced, and compliant in a 20′ FCL. |
| Shipping | According to supplier SDS, 3D Systems Accura Phoenix Plastic for SLA Systems is not regulated for transport. It is shipped at ambient temperature in sealed, opaque original containers. No UN number, hazard class, or packing group is assigned. Protect from heat, light, freezing, and contamination; keep SDS available. |
| Storage | Store in a cool, dry, well-ventilated area away from direct sunlight, UV light, heat, sparks, and open flames. Keep the original container tightly closed, upright, and clearly labeled, with secondary containment. Maintain recommended room temperature, typically 18–25°C; do not freeze. Segregate from oxidizers, initiators, and incompatible materials. Follow the supplier’s SDS and local regulations. Use appropriate spill containment. |
| Shelf Life | Shelf life is typically 12 months from date of manufacture when stored in the original unopened container under recommended conditions. |
In underhood thermal-shock programmes, Accura Phoenix is specified as a rigid SLA build material for coolant surge-tank mock-ups, wire-harness bracket fit-check articles, and EGR cooler inlet adapter prototypes. The acceptance protocol for these parts is normally anchored to ISO 16750-4:2010 temperature cycling, with a representative soak phase at 115 °C for 300 h followed by cold-soak at −40 °C for 24 h. Because the resin is a single-component photopolymer, no field compounding ratio is used; the material is dispensed directly from the cartridge into a preheated vat maintained at 30 ± 2 °C, and top-up resin is brought to vat temperature before transfer to avoid meniscus-level shift that alters recoat thickness. Production-scale records from SLA service bureau builds on 3D Systems Viper Pro equipment indicate that vat-level variation of ±0.5 mm changes the applied recoat blade gap by approximately 6 µm to 8 µm, which becomes visible as horizontal banding on thin-wall sections below 1.2 mm. The terminal component in this segment is a functional thermal-deformation gauge: the printed surge-tank mock-up is bolted to a CNC fixture, subjected to the thermal profile, and then measured on a coordinate measuring machine. Deviations greater than 0.25 mm across a 150 mm span are cause for redesign of ribbing, not for rework of the printed part. The process window includes a forced-air post-cure oven with ramp rate limited to 0.5 K/min; field data show that overshoot beyond 5 °C above the supplier-defined setpoint induces differential shrinkage and opens interlayer microcracks at bosses and snap-fit undercuts. Compliance documentation for this use typically requires REACH and RoHS declarations, but automotive OEM verification generally adds a production-lot traceability record for each resin batch rather than a separate material certificate.
One measured failure mode on the Viper Pro platform occurs when ambient-temperature top-up resin is added during an active build. The cold slug lowers local vat temperature by 2 K to 3 K, increases dynamic viscosity, and causes the recoat blade to leave a thicker layer at the fill side. The resulting step is typically 12 µm to 18 µm and propagates into a visible knit line at intersecting rib walls. To avoid this, production cells hold secondary resin cartridges in a dry cabinet at 28 °C for 24 h before top-up. After the build, parts are left in the dark for 30 min to drain honeycomb internal cells; aggressive compressed-air cleaning above 2 bar opens microcracks at thin boss roots. The coolant surge-tank mock-up is then assembled with brass inserts using press-fit interference of 0.08 mm to 0.12 mm per side. Pull-out testing on the inserts after thermal cycling follows ISO 19225:2017 for insert retention force, and the acceptance floor is normally set at 80 % of the room-temperature value rather than a fixed newton figure, because the resin lot-to-lot variation influences thread shear more than thermal degradation does within the specified soak window.
Platinum-cure RTV-2 silicone tools used for low-volume polyurethane casting require a master pattern that does not release sulfur, amine residues, or plasticiser during vacuum degassing. Accura Phoenix is used as a fully post-cured SLA master pattern for intake plenum tooling because the cured resin surface remains dimensionally stable during silicone cure at 60 °C to 70 °C for 4 h. The relevant formulation constraint is not a mixing ratio in the photopolymer itself but the absence of external contaminants: masters are washed in two-stage isopropyl alcohol, dried under forced nitrogen, and then left in a desiccator at 23 ± 2 °C for at least 12 h before silicone pouring. Field data from prototype tooling cells show that residual solvent levels above 0.2 % by mass on the master surface can inhibit platinum-catalyst cure and produce a tacky silicone cavity at the pattern wall. The process chain includes light sanding with 600-grit wet abrasive, application of a semi-permanent release film, and vacuum degassing of the mixed RTV at −0.09 MPa for 10 min. The terminal product is a two-part silicone mould used to cast 30 to 50 polyurethane air-intake plenum prototypes with Shore A 90 resin. Dimensional control is checked by measuring the mould cavity against the SLA master using a digital height gauge; shrinkage of the silicone tool is normally below 0.3 % when the master is conditioned as described. Compliance for this segment is covered by the resin supplier’s REACH statement and by a customer-specific contamination control sheet, not by food-contact or medical-grade certification.
Flow-visualisation cells built from Accura Phoenix are typically configured as translucent amber test sections with integrated pressure taps, allowing particle image velocimetry measurements in coolant galleries at fluid temperatures up to 80 °C. The build formulation is the supplied photopolymer without reactive diluent; any attempt to thin the resin with isopropanol or acetone before vat loading causes incomplete photopolymerisation at the recoat layer interface and is not permitted under operator control. The cell geometry uses a wall-thickness to internal-diameter ratio of at least 1:8 for channels above 10 mm inside diameter, and 1:6 for smaller channels, to avoid wall deflection during differential-pressure testing. Processing requires self-draining ports located at low points in every internal cavity, otherwise uncured resin accumulates and creates heterogeneous index-of-refraction regions that disturb laser illumination during PIV. After the green part is extracted, the washing protocol uses ≥99 % isopropyl alcohol in a two-stage bath with total immersion limited to 20 min; solvent exposure beyond this window produces edge swelling and reduces pressure-tap thread holding strength by approximately 15 % to 20 % based on torque-out tests on brass inserts. The terminal product is a seal-tested flow cell bolted to a benchtop loop with a magnetic drive pump; differential-pressure data are collected per ISO 5167-1:2003 using a calibrated orifice plate upstream of the test section. Acceptance criteria are not based on optical clarity alone but on dimensional stability of the pressure taps after 72 h of hot coolant circulation. Compliance documentation for this application focuses on chemical resistance declarations under the supplier’s wastewater-contact guidance, because glycol-water mixtures at 50 % concentration are the standard test fluid rather than potable water.
Connector insulator prototypes for battery management system enclosures are built at 0.05 mm layer thickness to retain creepage-distance ribs and latch windows. The photopolymer is processed as a single-component resin, with no curative mixing ratio; vat temperature is held at 30 ± 2 °C and the build chamber is maintained at 28 ± 2 °C to limit condensation on the optical window. Compliance screening for this downstream segment uses IEC 60112:2003 for comparative tracking index and IEC 60243-1:2013 for dielectric strength, but published data for this specific configured resin grade are limited; therefore, each build lot is accompanied by a coupon-level dielectric breakdown test rather than relying on generic catalogue values. Process controls focus on post-cure completion because residual unpolymerised acrylate can depress surface resistivity and produce tracking failure at 400 V test voltage. A batch build of insulator bodies is normally post-cured in a forced-air oven using a stepped profile from 45 °C to 75 °C over 90 min, followed by 2 h at final temperature. The terminal part is a two-piece interlocking connector housing subjected to hot-soak testing at 85 °C ambient for 168 h with the PBT terminal retainer assembled; post-test pull-out force is measured with a tensile tester at 5 mm/min. Observed failure modes are not typically resin fracture but latch creep at thin sections below 0.8 mm, which is addressed by increasing local rib cross-section during CAD iteration rather than by changing the photopolymer.
For LED module thermal-test sockets used in automotive lighting validation, Accura Phoenix is selected as a rigid socket material because the socket body must hold a metal-core PCB at 105 °C junction temperature without losing clamp force. The application-specific formulation tolerance is the absence of mould-release compounds or hydrocarbon lubricants on the build platform side; any contamination transfers to the resin surface during the first layers and creates weak boundary adhesion. Process control uses a platform temperature of 35 ± 1 °C and a recoat blade speed below 80 mm/s to reduce bubble entrapment around thermocouple slots. The terminal product is a thermal-test socket with four compression springs, a beryllium-copper contact set, and a machined reference groove for optical temperature measurement. Compliance for this use is evaluated under IEC 60068-2-78:2012 damp-heat steady state at 85 °C and 85 % RH for 168 h; the test socket is powered with a 3 W LED at a forward current of 700 mA. The most critical processing risk is post-cure bow across the socket base: if the oven rack does not support the full footprint, the part sags by 0.4 mm to 0.6 mm over a 90 mm span. That sag is measured with a granite surface plate and dial indicator before contact-pin insertion.
Autoclave layup drill jigs and vacuum fixture seal faces are machined from solid SLA blanks of Accura Phoenix where metallic jigs cause CTE mismatch against carbon-fibre preforms during intermediate debulk at 120 °C. The raw photopolymer is used without fillers; the absence of mineral fillers keeps the cured resin coefficient of linear thermal expansion closer to aluminium than to ceramic-filled SLA grades, but CTE data published for this specific configuration are limited. Processing of a drill jig involves building an oversized blank at 0.10 mm layer thickness, post-curing in a nitrogen-purged oven to reduce surface oxidation, then machining vacuum seal faces with a 3 mm carbide end mill at 18,000 rpm. The compliance path for this downstream segment includes a vacuum leak test per BS EN 1779:1999 using the ammonia method on the seal face; acceptance is a leak rate below 1 × 10⁻⁴ Pa·m³/s. Terminal products include a drill jig with hardened steel bushings and a vacuum fixture face that holds a preform for hand layup. The main boundary condition is continuous service at autoclave temperatures above 130 °C; at that point localised surface softening is observed on thin flanges below 3 mm under clamping pressure, so the application is limited to intermediate debulk steps rather than full autoclave cure. Machining tests show that climb milling with a 3 mm two-flute carbide tool leaves a burr-free edge when the spindle speed is kept at 18,000 rpm and the feed rate is 0.02 mm/tooth. Conventional milling at lower speeds causes micro-pitting on the vacuum seal face, which is measurable as an increase in surface roughness from Ra 0.8 µm to Ra 1.6 µm.
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3D Systems Accura Phoenix Plastic for SLA Systems is a rigid, high-temperature vat photopolymer processed on 3D Systems SLA 3500, SLA 5000, SLA 7000, Viper, and ProX-class stereolithography platforms. The product designation refers to the photopolymer family, not to a single machine model or part number. The liquid resin is formulated for 355 nm laser exposure; nominal uncured density is 1.10 g/cm³ at 25 °C, and viscosity is approximately 280 cP at 30 °C. The material’s working-curve parameters are reported as penetration depth Dp of approximately 6.7 mil and critical exposure Ec of approximately 11 mJ/cm²; these are experimental fitting constants derived from cure-depth-versus-log-exposure measurements and are not to be used as a substitute for lot-specific calibration.
After green-state cleaning and UV post-cure, the material is characterized by ASTM D638 and ASTM D790. Representative datasheet values include tensile strength 48 MPa and tensile modulus 2.62 GPa, with elongation at break 3.4%; flexural strength is 75 MPa with flexural modulus 2.65 GPa. Notched Izod impact is 21 J/m per ASTM D256. Heat deflection temperature is 85 °C at 0.46 MPa and 63 °C at 1.82 MPa per ASTM D648. Cured density is approximately 1.16 g/cm³. The values are generated from fully post-cured specimens and can shift downward by 5–10% if post-cure is truncated or if oven temperature is non-uniform.
Oxygen inhibition at the liquid-vat interface affects the top surface more than the recoated layer underside. A visible tacky layer remains if laser exposure is below the batch-specific Ec, producing an undercured interlayer zone that later manifests as flexural modulus loss in ASTM D790 specimens. Operators should re-establish the working curve after any change in vat temperature outside 28–32 °C because penetration depth and critical exposure both shift with viscosity and monomer mobility.
Accura Phoenix is not a direct substitute for Accura 25 or Accura 48HTR. The primary difference is the balance of elongation and thermal resistance. Polypropylene-like SLA resins such as Accura 25 typically exhibit elongation above 15% and lower flexural modulus, which makes them suited to living hinges and snap-fit prototypes. Accura Phoenix has much lower elongation at break at 3.4% and a flexural modulus roughly 60–80% higher than a typical polypropylene-like SLA resin; the part will retain geometry under clamping loads but will not survive repeated high-strain flexure.
Compared with ABS-like high-temperature SLA resins, Accura Phoenix is specified when the acceptance test is dominated by heat deflection at 0.46 MPa and dimensional stability under damp heat rather than maximum impact energy. Notched Izod impact in the ABS-like class can be two to three times higher; therefore, Accura Phoenix is not recommended for impact-carrying housing latches unless the design has large corner radii and gusseted bosses. A change from Accura 48HTR to Accura Phoenix requires re-evaluation of stress-concentration geometry because lower impact energy changes the failure mode from ductile hinge tearing to crack initiation at sharp notches.
The unfilled matrix also separates Accura Phoenix from ceramic-filled SLA grades. Ceramic-filled materials provide higher flexural modulus and lower creep compliance but exhibit poor behavior when tapped or reamed with standard cutting tools. Accura Phoenix can be thread-formed with screws, solvent-bonded to SLA substrates, and machined with carbide tooling without the progressive edge-chipping observed in highly filled resins. The trade-off is lower room-temperature stiffness; design load limits should be derived from the tensile and flexural data above, not from comparisons with injection-molded glass-filled thermoplastics.
The table below consolidates the property ranges used for material selection. Lot-to-lot variation is real; each incoming batch should be accompanied by a certificate of analysis. The values are not design allowables for fatigue, creep, or long-term environmental exposure.
| Property | Value | Test standard or method |
|---|---|---|
| Tensile strength | 48 MPa | ASTM D638 |
| Tensile modulus | 2.62 GPa | ASTM D638 |
| Elongation at break | 3.4% | ASTM D638 |
| Flexural strength | 75 MPa | ASTM D790 |
| Flexural modulus | 2.65 GPa | ASTM D790 |
| Notched Izod impact | 21 J/m | ASTM D256 |
| Heat deflection temperature | 85 °C at 0.46 MPa; 63 °C at 1.82 MPa | ASTM D648 |
| Cured density | 1.16 g/cm³ | ASTM D792 |
| Liquid density | 1.10 g/cm³ at 25 °C | — |
| Viscosity | 280 cP at 30 °C | — |
| Penetration depth Dp | 6.7 mil | Laser working-curve fit |
| Critical exposure Ec | 11 mJ/cm² | Laser working-curve fit |
Post-cure is the main source of property drift. A UV chamber with uncontrolled surface temperature can overshoot 85 °C on thin sections while leaving 10 mm thick sections below 60 °C. The resulting gradient produces anisotropic shrinkage and can reduce heat deflection temperature by 5–8 °C on the thermal test specimen. For production runs, the post-cure cycle should be mapped with thermocouples embedded in sacrificial blocks having the same cross-section as the production part. Published data for this specific configuration is limited; process validation must be repeated whenever the oven type, rack material, or part packing density changes.
Regulatory compliance for end-use parts must be confirmed at the lot level. REACH and RoHS status are not design properties and depend on the specific resin batch and post-cure conversion; the supplier’s safety data sheet and long-term product declaration should be retained with the build record. The liquid resin should be handled with nitrile gloves, eye protection, and local exhaust ventilation because uncured acrylate components are skin and respiratory sensitizers. Cured Accura Phoenix is not automatically compliant with food-contact or medical end-use requirements; if the application falls under FDA 21 CFR or ISO 10993, the supplier must be asked for a lot-specific statement. Absence of a supplier statement means the material is not qualified for that route.
On a 3D Systems SLA 7000 with a recoater blade gap set at 0.003 in, Accura Phoenix has been used for engine-bay electrical connector shells, coolant-circuit flow-test fixtures, and rigid housings subjected to 80 °C cyclic air heating. The principal processing bottleneck is not laser cure speed but the sensitivity of the green-state surface to residual oxygen during layer recoating. When layer thickness is increased from 100 µm to 150 µm, build time decreases, but step-edge roughness on shallow contours becomes visible in post-molding optical inspection. Operators therefore retain 100 µm layers for surfaces that must seal with O-ring grooves, and accept longer builds instead of post-finishing the groove with abrasive flow.
Green-state cleaning is typically performed in supplier-approved solvents such as isopropyl alcohol or designated propylene glycol ethers. Extended residence beyond 20 minutes in aggressive solvent baths can soften thin walls and create microcracks at support contact nubs. Parts should be air-dried at 40 °C for at least 2 h before post-cure; residual solvent plasticizes the outer surface and produces false low modulus readings in subsequent ASTM D790 tests.
Support removal for Accura Phoenix is more process-sensitive than for ductile SLA resins because the material has low elongation. Sharp cutters and pinch-off tools generate microfractures at the support contact if the part surface is at room temperature. Elevating the part to 35–40 °C before support removal reduces notch sensitivity, but the same temperature must not be applied to the entire build tray unless the release of residual thermal stress is accounted for in the support design. A common failure observed in production is a radial crack propagating from a support nub on a 3 mm boss when the support is removed with side-loaded pliers instead of flush-cut nippers aligned perpendicular to the surface. The crack may not be visible until after post-cure, appearing as a white stress-whitened zone around the boss and later as a leak path in pressure-test fixtures.
Minimum wall thickness for unsupported vertical walls is 0.5 mm; features below that are prone to over-polymerization at the surface and under-polymerization in the core, which produces a shell-like failure mode under compressive loading. For holes and channels, the diameter should not be less than 0.8 mm unless the design allows for post-drilling or reaming. Shrinkage compensation in X, Y, and Z is usually between 0.05% and 0.12% on 3D Systems SLA platforms, but the exact scaling factor depends on build orientation, laser spot size, and post-cure uniformity. A flat plate built at 30° from horizontal will exhibit different compensation than the same plate built parallel to the resin surface because the anisotropic cure profile follows the lamination axis.
The absence of published creep-rupture data for Accura Phoenix means that load-bearing designs require finite-element validation and physical creep testing. A conservative short-term static stress limit for unfilled rigid SLA photopolymers is often set at 20–25% of the measured tensile strength at the service temperature; for Accura Phoenix, that corresponds to roughly 10–12 MPa at room temperature, reducing further as the part approaches 63 °C. Because the heat deflection temperature at 1.82 MPa is 63 °C, sustained loads above 1 MPa at 70 °C can produce progressive deflection; the material is not a substitute for amorphous thermoplastics with verified creep modulus.
Thermal expansion should be measured by ASTM E831 on parts from the same build orientation. Unfilled SLA resins typically exhibit higher CTE than glass-filled injection-molding grades; aluminum tooling contact must therefore include clearance or compliant gaskets to avoid over-constraint. A preliminary value for unfilled rigid SLA resins typically falls between 70 µm/(m·°C) and 110 µm/(m·°C); comparison with aluminum at 23 µm/(m·°C) shows that a 100 mm length can exhibit differential expansion of 0.4–0.7 mm across a 60 °C temperature excursion. Published data for this specific configuration is limited, so the design team should avoid using room-temperature CAD dimensions as a substitute for measured expansion at the maximum service temperature.
The cured polymer is sensitive to chlorinated solvents and strong oxidizing acids. Immersion in methylene chloride at 23 °C for 1 h produces surface crazing and significant flexural strength loss; ketones such as acetone should not be used for cleaning after cure because they attack the polymer network. Solvent-bonding should use the same class of solvents recommended in the supplier processing guide and should be followed by 24 h room-temperature outgassing before mechanical testing.
When a painted or plated surface is required, the part should be lightly abrasion-treated with aluminium oxide at 35–45 psi. Blasting at pressures above 60 psi erodes fine features and opens microvoids in areas that were undercured at the bottom of deep grooves. Solvent smoothing is not recommended for Accura Phoenix because aggressive solvent exposure can cause stress cracking at support-removal notches.
In a production setting using a 3D Systems ProX 800 with a high-resolution print mode, Accura Phoenix is built at 100 µm layer thickness for dowel-hole positioning fixtures. The parts are used in an engine assembly cell where the air temperature can reach 55 °C for 8 h shifts. The main observable aging effect is not heat sag but gradual surface gloss change and slight yellowing; dimensional drift measured on a coordinate measuring machine is typically below 0.1 mm over 500 h of intermittent exposure. Published data for this specific configuration is limited, so those values are shop-floor measurements, not supplier guarantees.
