| HS Code | 254990 |
| Material Type | Cast Urethane / ABS-like photopolymer |
| Color | Amber |
| Density | 1.13 g/cm³ |
| Tensile Strength | 46 MPa |
| Tensile Modulus | 2,100 MPa |
| Elongation At Break | 8% |
| Flexural Strength | 68 MPa |
| Flexural Modulus | 1,900 MPa |
| Hardness | 80 Shore D |
| Heat Deflection Temperature | 55 °C at 0.45 MPa |
| Glass Transition Temperature | 65 °C |
| Viscosity | 260 cps at 25 °C |
| Critical Exposure | 11 mJ/cm² |
As an accredited 3D Systems QuickPlastic Cast Urethane Material ABSLike factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
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In automotive pre-production interior validation, design-release decisions for tactile surfaces and clip-fit assemblies are delayed by the lead time of production ABS injection tooling. QuickPlastic ABSLike cast urethane is processed in platinum-cure silicone molds to approximate ABS-like stiffness, grain retention, and snap-fit behavior for low-volume pilot builds. Parts molded for this segment are evaluated against interior material specifications derived from ISO 3795:1989 for horizontal burn rate, with tensile modulus data generated under ASTM D638-14, flexural modulus under ISO 178:2019, and hardness under ASTM D2240-15. The supplier-defined two-part metering is fixed at 100:80 by weight Part A to Part B; pigment dispersion is limited to 0.05–0.50 wt% of total batch weight, with pre-dispersed color pastes preferred over dry pigment because dry pigment agglomerates above 20 µm create visible defects on low-gloss grained surfaces. In production, the master pattern is CNC-machined or stereolithography-printed from an ABS-like master, suspended in a mold frame, and encapsulated in platinum-cure silicone rubber of 40–50 Shore A. After the silicone tool is cured and split, the two liquid components are degassed separately at 25 °C under 5–10 mbar for 10–15 min, then metered at 100:80 by weight and mixed at 300–500 rpm in a vacuum casting machine. The mold is preheated to 60–70 °C before pouring, and the filled tool is held under vacuum for 1–2 min to liberate air from narrow ribs and snap-fit undercuts. Demolding after 60–90 min at 70 °C is followed by a 4 h post-cure at 80 °C to stabilize Shore D 82 hardness and reduce residual surface tack. Terminal components produced by this route include HVAC control knobs, steering wheel switch bezels, instrument panel trim inserts, air vent adjusters, and door handle surrounds. The operational boundary is moisture sensitivity: when handling occurs at relative humidity above 60%, both components must be re-degassed and mold surfaces held below 25 °C to prevent carbon dioxide bubble formation from the isocyanate-water reaction.
Diagnostic device enclosures molded from QuickPlastic ABSLike are subjected to early biocompatibility screening not because the material is specified for long-term patient contact, but because service engineers and clinicians handle the housing during maintenance and consumable replacement. The accepted test cascade for short-term skin-contact polymeric enclosures follows ISO 10993-1:2018, with cytotoxicity evaluated under ISO 10993-5:2009, sensitization under ISO 10993-10:2021, and, when the device risk file requires, intracutaneous reactivity under USP <88>. Electrical safety pre-qualification is run in parallel to IEC 60601-1:2005 with Amendment 2:2020, specifically Clause 8 for protection against electrical shock and Clause 11 for temperature rise. The thermoset polyurethane is mixed at 100:80 by weight Part A to Part B; the hardener fraction is not adjusted beyond ±1% because off-ratio curing creates unreacted isocyanate residues that confound cytotoxicity extraction studies. For pigmented diagnostic housings, colorant loading is held to 0.10–0.30 wt% of total batch, and the pigment carrier must be a low-molecular-weight polyester polyol that participates in the urethane network rather than a nonreactive plasticizer that would migrate during extraction testing. Manufacturing begins with a silicone mold cast from a stereolithography master, followed by mold conditioning at 65 °C under 10 mbar vacuum for 20 min to remove water vapor from the silicone surface. Resin and hardener are degassed independently before metering, then mixed in a vacuum casting machine with a cup capacity of 2–5 kg. The mixed material is poured into the preheated silicone tool under vacuum; after backfill movement ceases, the tool is transferred to an air-circulating oven at 70 °C for 90 min. Terminal outputs include handheld diagnostic enclosures, cart-based monitor bezels, portable ultrasound transducer shells used in non-patient-contact tooling trials, and control-box covers during IEC 60601 pre-screening. Published data for long-term implant or repeated patient-contact exposure of this specific grade are limited; the material is not qualified as an implant polymer, and any device risk file must classify it as a limited-contact external housing only.
When handheld drone and robotics developers replace CNC-machined polycarbonate housings with cast urethane for short-run field trial units, the process window shifts from machinable stock to silicone tooling and the material must be documented for IEC 62368-1:2018 electrical equipment safety and UL 94 HB flame classification. QuickPlastic ABSLike is typically evaluated under ASTM D638-14 for tensile properties, ASTM D790-17 for flexural modulus, ASTM D256-10 for notched Izod impact, and ASTM D648-18 for deflection temperature under load. The formulation metering is fixed at 100:80 by weight resin to hardener. In field-trial enclosures, milled glass fiber is sometimes introduced at 5–10 wt% of total batch to raise flexural modulus by 400–600 MPa, but this modification changes the rheological profile: measured mixed viscosity rises from the unfilled 200–300 cps range to 800–1,200 cps under ASTM D2196-18, and pot life can fall by 20–30% because filler increases mix enthalpy and accelerates the urethane reaction. Because the material is a thermoset and not a thermoplastic ABS, UL 94 V-0 is not documented for the unmodified grade; if a V-0 or V-1 rating is required, the project must use an alternative qualified material or validate a flame-retardant additive system at the cost of reduced Shore D hardness and increased surface stickiness. The production route uses a silicone mold cast from a stereolithography or CNC master, with mold hardness controlled between 45 and 55 Shore A to balance dimensional accuracy and demolding of deep ribs. The two liquid components are degassed at 25 °C under 5–10 mbar, metered by weight with a tolerance of ±0.5%, and mixed under vacuum at 350–500 rpm. The mold is preheated to 65 °C; after vacuum pouring, the tool is cured at 70 °C for 60–90 min and post-cured at 80 °C for 4 h. Terminal products include drone gimbal covers, sensor pod enclosures, robotic arm fairings, battery housing prototypes, and handheld controller outer shells. The operational boundary for filled systems is strict: moisture content above 0.05 wt% in the polyol component or ambient relative humidity above 55% will generate bubble defects in thick sections above 6 mm.
Industrial automation housings and control-panel components are often validated with functional prototypes before steel tooling is commissioned. Ingress protection pre-checks to IEC 60529:2013, particularly IP54 and IP65 classifications, can be performed on vacuum-cast ABS-like polyurethane enclosures provided that the silicone mold parting line is designed with a 0.5 mm overlap and the gasket groove is formed directly in the cast part rather than created by secondary machining. The two-component QuickPlastic ABSLike system is metered at 100:80 by weight; release-agent transfer is limited to a thin film on the mold surface, because bulk silicone release agent carried into the resin can lower the coefficient of friction at gasket seats and create false leak-test passes. For electrical-insulation pre-screening, volume resistivity and surface resistivity are tested under ASTM D257-14 on 100 mm × 100 mm × 3 mm plaques. The process begins with a CNC-machined polyoxymethylene master that reproduces internal standoffs and cable entry bosses. The master is molded in condensation-cure silicone, and the silicone tool is baked at 60 °C for 8 h to remove low-molecular-weight siloxanes that would otherwise interfere with post-cure surface finish. The casting resin and hardener are degassed independently, mixed under 1,500–2,500 Pa vacuum, and poured into the preheated tool. Demold at 70 °C after 90 min, then post-cure at 80 °C for 4 h. Terminal outputs include PLC enclosure lids, control station front panels, cable entry boxes, operator terminal housings, and mounting brackets for DIN-rail enclosures. The main limitation for this segment is heat: continuous exposure above 75 °C under load is not recommended for unfilled cast urethane, so control cabinets with high-power drives or internal heat sources require either additional airflow or production thermoplastic parts.
Directly after a design freeze of a new appliance interface, the industrial design team usually requires 30–100 physical fascia samples with grained surfaces, tinted colors, and snap-fit retention for usability testing before injection tooling. Cast polyurethane is adopted because it reproduces grained textures from the silicone tool and maintains dimensional stability under short-term thermal exposure up to 70 °C. The regulatory pre-screen for this segment is based on IEC 60335-1:2020 for household and similar electrical appliances, with material-level evaluation under UL 746C:2012 for polymeric materials used in electrical equipment. The QuickPlastic ABSLike resin-to-hardener metering is held at 100:80 by weight; colorants are dispersed into the polyol component at 0.02–0.10 wt% of total mix, and pigment particle size must remain below 10 µm to avoid visible speck defects on high-haze grain textures. The manufacturing process starts with a silicone mold whose cavity surface carries a negative grain depth of 0.15–0.30 mm and draft angles of 2–3° on vertical walls. The silicone tool is preheated to 65 °C, and the two liquid components are degassed at 25 °C under 8–10 mbar before metering. Mixing is performed in vacuum at 300–400 rpm; the material is then poured into the mold under 10–20 mbar vacuum and the tool is moved to a 70 °C oven for 90 min. Demold is followed by a 4 h post-cure at 80 °C to stabilize Shore D 82 and reduce residual odor that can be detected by sensory panels. Terminal products include oven control knobs, refrigerator fascia overlays, thermostat housings, air-conditioner display bezels, and washing machine control dials. Batch-to-batch variance control is critical for this segment: when pigment loading drifts above 0.10 wt%, Shore D hardness can shift downward by 2–3 points and snap-fit tongues may fail repeated engagement after 50 cycles under ASTM D2240-15 hardness verification.
Aircraft cabin interior development uses low-volume polyurethane castings for early spatial validation of molded plastic components. QuickPlastic ABSLike is not a production-grade flame-retardant aircraft material; however, it can be used for seat-back tray latch prototypes, overhead bin trim models, and lavatory latch covers designed for form, fit, and mechanical function testing in ground-based mockups. The applicable test environment is 14 CFR 25.853(a) vertical burn, but no pass result is implied because the unmodified material does not possess the required flame-retardant package. Metrology and mechanical data are generated in accordance with ASTM D638-14, ASTM D790-17, and conditioning under ISO 291:2008. The two-component system is mixed at 100:80 by weight; no halogenated flame retardant is added because particulate flame-retardant loading increases mixed viscosity and shifts final hardness, causing unacceptable dimensional distortion in thin-wall bezels. The manufacturing route begins with a stereolithography master representing the finished part plus a 0.8% linear scale factor to compensate for silicone shrinkage and polyurethane cure shrinkage. The silicone mold is cast in platinum-cure silicone with 45–55 Shore A hardness; the tool is preheated to 65 °C. Resin and hardener are degassed under 5 mbar and mixed in a vacuum casting machine. The mixed material is poured under vacuum, cured at 70 °C for 90 min, and post-cured at 80 °C for 4 h. Terminal products include seat-back tray latch covers, overhead bin bezel prototypes, lavatory latch escutcheons, armrest end caps, and passenger service unit panel mockups used in cabin layout reviews. Published data for this specific configuration under 14 CFR 25.853(a) is limited; therefore the material must be quarantined from any certified cabin installation until production-grade flame-retardant polymer data have been obtained.
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3D Systems QuickPlast Cast Urethane Material ABSLike is supplied as a two-component polyurethane casting system formulated for vacuum casting in silicone tooling. The product is identified as the ABSLike rigid grade within the QuickPlast family; the designation distinguishes it from Shore A elastomer grades and transparent grades that use a different urethane architecture. The material is specified for low-volume rigid housings, covers, snap-fit assemblies, and ducting where the short-term tensile, flexural, and thermal deflection behaviour of unfilled acrylonitrile–butadiene–styrene is the engineering reference. Because the product is cast rather than melt-processed, final properties depend on mix ratio control, degassing, tool temperature, and post-cure history. Direct substitution from machined ABS therefore requires verification under the destructive test methods described below. The following sections address processing constraints, property benchmarks, comparison with machined ABS, and operational boundaries.
Resin preparation begins with component conditioning at 23 ± 2 °C and 50 ± 10% relative humidity. The isocyanate-containing Part A is moisture-sensitive; ambient relative humidity above 60% without dry-air purging can produce carbon dioxide during cure and reduce surface hardness. The two components are metered according to the batch-specific ratio shown on the certificate of analysis; rigid ABS-like cast urethanes of this class are frequently supplied at a 1:1 by-weight or by-volume ratio, but the exact value must not be assumed across batches. Mixing is performed with a high-shear dispersion blade or static mixer at a speed low enough to avoid vortex aeration, typically 500–1,500 min−1 for a 200 g batch. The mixed liquid is then degassed in a vacuum chamber capable of maintaining an absolute pressure below 5 kPa; full froth collapse commonly requires 2–5 min depending on batch mass and resin viscosity.
Pot life at 25 °C for unfilled rigid grades in this class is usually 3–8 min. For multi-cavity silicone tools, this boundary limits manual filling unless automated dispensing or a narrower temperature protocol is used. Mould temperature between 30 °C and 40 °C lowers mixed viscosity and improves flow into ribs, bosses, and snap-fit features with wall sections down to approximately 1 mm. Demoulding is typically performed after the exotherm has subsided and the green Shore D hardness is at least 50; early demoulding can produce soft interiors and post-cure distortion. Post-cure in a forced-air oven at 60 °C for 2–4 h is used to complete chain extension and stabilise heat deflection temperature. These ranges are class-typical processing values observed on manual vacuum casting lines; the manufacturer’s batch documentation remains the binding control source.
On a twin-cavity silicone tool connected to a vacuum pot, incomplete degassing is the most frequent cause of surface pores on the A-surface. Bubbles entrained during mixing can remain trapped in blind bosses and undercut regions if the tool is not vented at the highest point. Production shops therefore add vent channels at the end of fill and keep the mixed resin puddle above the gate during vacuum release. This technique reduces visible porosity below 0.5% of the A-surface area in class-typical rigid cast urethane parts when the pattern surface finish is SPI-A2 or finer. Vacuum casting machines used with this material should be configured with a transparent lid, an oil-sealed rotary vane pump capable of reaching 1–5 kPa, and a resin trap to prevent volatiles from fouling the pump vanes. Machines without a resin trap show elevated pump maintenance intervals and risk oil contamination when the vacuum is released abruptly.
Published values for the specific QuickPlast ABSLike grade are limited outside the manufacturer’s datasheet; therefore the following benchmarks are class-typical for rigid unfilled cast urethane systems of the ABS-like type and should be used only for screening. Tensile specimens are prepared as Type IV bars and tested at 50 mm/min per ASTM D638-14 after the specified post-cure. Ultimate tensile strength commonly falls between 35 MPa and 52 MPa, tensile modulus between 1.4 GPa and 2.4 GPa, and elongation at break between 5% and 15%. Flexural data under ASTM D790-17 Method A generally show flexural strength of 50–70 MPa and flexural modulus of 1.3–2.1 GPa. Shore D hardness per ASTM D2240-15 with a 10 s delay is usually in the range 70–85. Heat deflection temperature at 0.45 MPa per ASTM D648 is commonly 55–90 °C. Notched Izod impact per ASTM D256 is typically 30–70 J/m, which is below the value of many injection-moulded ABS resins and must be considered in snap-fit designs.
Where European test certification is required, ISO 527-1:2019 and ISO 178:2019 are the corresponding tensile and flexural references. Cross-method comparisons between ASTM and ISO should not be made without correcting for specimen geometry and test speed; a 1A ISO specimen tested at 1 mm/min can produce a different modulus value than an ASTM Type IV specimen tested at 50 mm/min.
| Property | Test method and condition | Typical range |
|---|---|---|
| Tensile strength | ASTM D638-14, Type IV, 50 mm/min | 35–52 MPa |
| Tensile modulus | ASTM D638-14 | 1.4–2.4 GPa |
| Elongation at break | ASTM D638-14 | 5–15% |
| Flexural strength | ASTM D790-17, Method A | 50–70 MPa |
| Flexural modulus | ASTM D790-17 | 1.3–2.1 GPa |
| Shore D hardness | ASTM D2240-15, 10 s delay | 70–85 |
| Heat deflection temperature | ASTM D648, 0.45 MPa | 55–90 °C |
| Notched Izod impact | ASTM D256 | 30–70 J/m |
On a multi-cavity silicone tooling line, part-to-part variation in Shore D hardness is usually within ±2 points when the mix ratio, degassing time, and post-cure temperature are fixed. Dimensional stability is influenced more by master pattern scaling than by resin lot changes; unfilled rigid grades of this class show total linear polymerisation shrinkage of 0.3%–0.6%, so the master pattern is typically scaled by the same amount before silicone tool fabrication. Shrinkage is not isotropic in thick sections: local solidification fronts, metal-filled silicone backings, and variable mould wall thickness create gradients that demand flatness checks after 24 h rather than immediately after demoulding.
Machined ABS plate offers higher notched Izod impact and predictable density because it retains the orientation and thermal history of extruded or compression-moulded sheet. QuickPlast ABSLike is considered when the part envelope includes compound curvature, thin-wall transitions, or multiple ribs that make machining cost- and time-intensive. A vacuum-cast ABS-like part can be produced in multiple colours and can fill walls down to approximately 1 mm if the silicone tool is preheated and the mixed resin is degassed immediately before pouring. However, the impact performance gap is measurable: notched Izod results for this class are commonly below 70 J/m under ASTM D256, whereas machined ABS grades can exceed 100 J/m. For snap-fit hooks and cantilever latches, this difference requires a reduction in permissible strain or an increase in section at the root.
Compared with stereolithography photopolymers marketed as ABS-like, the cast urethane route produces parts with a different anisotropy profile. Moulded urethane test bars cut from the xy and z directions of a cast plaque commonly show tensile strength variation below 5%. In contrast, unfilled photopolymer parts built in layers may retain less than 80% of xy tensile strength in the build direction when tested by ASTM D638-14. The urethane route also avoids the secondary thermal curing deformation sometimes observed in large flat photopolymer builds, but it adds silicone tool production and master pattern handling. The choice between these processes is therefore driven by surface orientation, transparency, and delivery time rather than by a single property.
Within the QuickPlast family, the ABSLike grade is further separated from fast-setting general-purpose grades by a higher post-cure hardness and a lower tendency to rubbery deformation at ambient temperature. Elastomeric Shore A grades are selected when the part must survive repeated bending or impact; the ABSLike grade is selected when the part must hold a thread-forming screw or maintain a snap-fit load. The property boundary is not absolute: a heavily post-cured elastomer can exceed its nominal Shore A range, while an under-cured ABSLike part can remain below 70 Shore D. Therefore incoming batch validation should include hardness and tensile checks on a standard plaque, not only on a finished part.
For ducting and cover applications, chemical exposure must be evaluated. Acetone wipe tests under ASTM D543 are generally not recommended for ABS-like cast urethanes because softening and stress crazing can occur; short-term hydrocarbon contact should be limited to a defined wipe protocol. Continuous use temperature is bounded by the class HDT range, so under-hood exposure to sustained air temperatures above 90 °C is outside the verified boundary. The ABSLike grade is differentiated from elastomeric QuickPlast grades by higher hard-segment content, which raises tensile modulus but reduces elongation and impact. That trade-off is visible in the stress–strain response as a steeper initial slope and lower strain at yield.
Because the Part A isocyanate competes with atmospheric water in the curing reaction, storage and handling restrictions dominate production reliability. Unopened containers should be stored at 15–30 °C and kept sealed under dry nitrogen; opened material should be consumed within the manufacturer’s stated working shelf life. At ambient humidity above 60%, resin and tool conditioning should include a dry-air purge or desiccant protection. Water contamination produces carbon dioxide bubbles, surface tack, and a Shore D hardness drop that is not recoverable by extended post-cure. Pot life is mass- and temperature-dependent: a 500 g mixed batch at 23 °C will gel sooner than a 200 g batch because of higher retained exotherm. For this reason, mixing cups should be shallow and metal-free if the shop ambient exceeds 25 °C; metal containers accelerate heat transfer and can shorten working time unpredictably.
Amine-containing mould release agents and amine-cured epoxy tool backings are incompatible with the isocyanate component. Contact with these materials may cause premature gelation, local hardness rise, and surface defects. Silicone-based or wax-based release systems are used instead, and release film thickness must be controlled because excessive release can swim on the casting surface and produce gloss variation. These are operational limits observed on manual vacuum casting lines and should be confirmed against the specific QuickPlast ABSLike batch documentation. No single material property can substitute for a controlled DoE when the tool geometry varies from the supplier’s validation envelope.
