| HS Code | 894156 |
| Tensile Strength | 35 MPa |
| Elongation At Break | 30% |
| Modulus Of Elasticity | 1200 MPa |
| Flexural Strength | 45 MPa |
| Flexural Modulus | 1100 MPa |
| Izod Notched Impact | 30 J/m |
| Shore Hardness | 75D |
| Heat Deflection Temperature | 45 °C |
| Water Absorption | 1.5% |
| Density | 1.14 g/cm³ |
| Rockwell Hardness | 80 R |
As an accredited Proto3000 Objet Digital Materials™ DM_4310 Polypropylene-like Prototyping Polymer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | Proto3000 Objet Digital Materials™ DM_4310 Polypropylene-like Prototyping Polymer comes in a sealed 1 kg cartridge with protective labeled packaging. |
| Container Loading (20′ FCL) | Container 20′ FCL loading: Palletized Proto3000 Objet DM_4310 polymer is properly secured, labeled, and loaded for safe ocean transport. |
| Shipping | Proto3000 Objet Digital Materials™ DM_4310 is typically shipped in sealed cartridges and is not classified as dangerous goods for transport under DOT, IATA, IMDG, or ADR. Store cool, dry, away from UV light and ignition sources. Keep containers closed. Always follow the manufacturer’s SDS and local shipping regulations. |
| Storage | Store Proto3000 Objet Digital Materials™ DM_4310 Polypropylene-like Prototyping Polymer in original, sealed, labeled containers/cartridges, upright in a cool, dry, well-ventilated area. Protect from direct sunlight, UV light, heat, sparks, flames, and incompatible materials. Maintain recommended temperature, typically 15–25°C; avoid freezing unless specified. Keep containers closed, away from food, drink, and ignition sources. Use appropriate secondary containment. Follow the SDS. |
| Shelf Life | Shelf life is approximately 2 years when stored at 15–25°C in original sealed packaging, away from direct sunlight and moisture. |
Closure prototyping with DM_4310 is executed as a layer-thickness-controlled digital photopolymer build rather than a bulk melt-process. The resin system is blended at the printhead by the PolyJet controller; the operator controls orientation, finish, and wall thickness but not the mixing ratio of the digital material components. In flip-top cap and tamper-evident closure trials, the critical failure mode is flexural crack initiation at the hinge root. Rigid engineering photopolymers commonly show first-cycle cracking when hinge-web thickness falls below 0.35 mm, whereas DM_4310 is benchtested under repeated articulation to determine whether a prototype survives assembly trials with moulded-polypropylene-compatible grip forces. Build orientation is fixed so the hinge line lies in the X-Y plane, not crossing Z-layer interfaces. Support removal uses a water-jet station; nozzle pressure is reduced for unsupported ribs below 0.8 mm to prevent hydraulic delamination. End items include dispensing closures, snap hinges, child-resistant closure ratchets, and refill fitments where wall section must remain under 1.0 mm to mimic production geometry. Tensile properties are tested according to ASTM D638-14 Type IV because Z-oriented specimens exhibit lower elongation; flexural modulus is recorded per ISO 178:2019 for mould-flow comparison. Packaging prototypes for food or pharmaceutical contact are not certified as direct food-contact articles; DM_4310 parts are typically used behind a secondary barrier or for mechanical approval only. European REACH Article 33 declarations for methacrylate monomers and photoinitiators must be obtained from the resin supplier before cross-border prototype shipments, and RoHS Directive 2011/65/EU heavy metal thresholds apply if cured parts enter electrical/electronic sub-assemblies.
Underhood reservoir mockups are printed as hollow shells with drain holes placed at the lowest internal cavity. The purpose is not chemical compatibility testing; DM_4310 is a geometric surrogate for moulded polypropylene. For PP reference, ISO 527-2:2012 gives tensile yield stress of 25–35 MPa and tensile modulus of 1.2–1.6 GPa for unfilled homopolymer, but DM_4310 is not assured to match those values. Fit-check rigs use production-type spring clips and mounting brackets; thermal cycling from -20 °C to 80 °C exposes bracket loosening and snap-lock wear. Dimensional correction is determined by thermomechanical analysis per ISO 11359-2, because photopolymer thermal expansion differs from moulded polypropylene. Hollow reservoir bodies are printed with a minimum shell thickness of 1.2 mm to resist clamping loads, and internal ribs are thickened to prevent local buckling during assembly. The primary process bottleneck is drainage of uncured resin from convoluted internals; closed channels must receive vent bores of at least 2.0 mm to prevent liquid resin accumulation and swelling. No immersion data for brake fluid, coolant, or washer fluid is published for DM_4310, so fluid-contact coupons should not be used for regulatory submissions. Prototypes entering hot-oil or fuel exposure rigs are rejected for material compatibility reasons unless the test intent is strictly limited to bracket geometry and service access.
Human factors evaluation of hand-held diagnostic enclosures and surgical instrument handles uses DM_4310 for prototype shells that undergo repeated grip and drop trials on benchtop fixtures. The controlling requirement is tactile edge rounding and assembly snap feedback rather than ultimate tensile strength. DM_4310 is not supplier-certified as an ISO 10993-1 implantable or long-term tissue-contact material; printed parts are restricted to external-contact mockups, cadaver-lab instrument bodies, and tray fixtures. Post-print washing and secondary UV exposure reduce residual monomer on the surface. Cytotoxicity testing is performed on representative coupons per ISO 10993-5:2009; results are lot-specific and not transferable without documentation. For medical clients, the build dossier includes raw resin SDS, build log, wash station log, and post-cure dose. Autoclave cycles at 121 °C are not recommended unless validated on printed coupons; low-temperature hydrogen peroxide gas plasma may be less damaging but requires resin-specific compatibility testing before repeated use. The most common line-side failure is layer separation at threaded insert bosses after repeated disassembly; brass heat-stake inserts are evaluated only after boss diameter is increased to at least 2.5× insert diameter and Z-height is minimized by reorienting the part. Drop-test fixtures with cold-rolled steel base plates are used to confirm enclosure rib integrity; parts conditioned at -20 °C show a higher incidence of through-crack propagation along Z-layer boundaries than parts tested at ambient temperature.
Connector body prototypes printed in DM_4310 are used to validate terminal insertion force, latching arm deflection, and pin-hole layout before production of moulded polypropylene connectors. The snap-latch feature is evaluated under repeated engagement with metal mating clips; the digital material is used to observe whether latch arm travel reaches the mating clip retention window without the brittle fracture exhibited by high-modulus rigid photopolymers. Envelope validation includes terminal bores with length-to-diameter ratios above 3:1; the primary process constraint is support removal from blind pockets. Water-jet cleaning alone does not fully clear sub-0.6 mm channels, and IPA swab cleaning introduces insertion-force variation. Holes below 0.5 mm may close due to residual support; draft angles of 0.5–1.0° are used on longitudinal ribs to ease tooling simulation. Connector bodies are not rated for live voltage or end-use electrical insulation; prototypes are limited to mechanical fit checks, harness routing studies, and connector position assurance trial fitting. Flammability documentation for the resin system is usually developed per UL 94 HB on self-supporting specimens; the final enclosure standard governs representative thickness and colour testing. This is a shallow-zone application for material chemistry but a deep-zone application for dimensional tolerance mapping and terminal retention repeatability.
| Sector | Critical test | Standard designation | DM_4310 condition / limitation |
|---|---|---|---|
| Consumer packaging closure | Tensile elongation and hinge flex fatigue | ASTM D638-14 Type IV | Test X-Y and Z orientations; Z elongation is lower |
| Automotive reservoir fit | Tensile modulus at thermal limits | ISO 527-2:2012; ISO 11359-2 | Not validated for long-term fluid immersion |
| Medical external contact housing | Cytotoxicity after wash/post-cure | ISO 10993-5:2009 | External contact only; no implantable supplier certification |
| Electrical connector envelope | Flammability and tracking | UL 94 HB; IEC 60112 | Not for live voltage; mechanical fit only |
Living-hinge endurance testing is the most process-sensitive application for DM_4310. The controlling variable is build orientation: a hinge printed flat on the build tray places repeated tensile strain along polymer chains within a single cured layer, whereas a hinge printed vertically stacks the flexural axis across multiple layer interfaces that open under repeated bending. ASTM D638-14 Type IV covers tensile properties but does not capture hinge fatigue; many prototyping laboratories adapt a flexural cycling fixture with a bending radius below 1.0 mm and a stroke rate of 1 Hz until surface micro-cracks appear. Published data for DM_4310 under this fixture configuration is limited; fatigue qualification is lot-specific and must be recorded in the build dossier. The post-cure step creates a known conflict: UV exposure reduces residual surface tack but can embrittle the outermost hinge skin. If the hinge is post-cured at a high dose, the surface layer may crack at a lower deflection angle than the interior, producing a micro-crack that propagates inward. Thinner hinges are more vulnerable because the surface crosslinked zone consumes a larger proportion of the total wall section. Service bureaus mitigate this by masking hinge regions during post-cure or by reducing UV dose and using an additional wash to control residual tack; the resulting trade-off is confirmed per resin lot.
Snap-fit closures and living hinges are evaluated together when a design combines both functions in one part. The snap beam can be printed in Z if the primary load is a single insertion event; the hinge must not be placed in Z. This creates an orientation conflict where the hinge and snap beam lie at 90° to each other. Operators either split the part into two printed subcomponents and bond them after support removal, or adjust CAD geometry until a single flat orientation places both features in the least damaging plane. Splitting introduces a bond line with fatigue response different from the printed bulk; that bond line is tested under the same flexural cycling protocol before tooling release. Ambient humidity above 60% RH is a further process risk: moisture uptake on the build tray and in support material can shift dimensional variation in thin hinge webs, requiring compressed-air dryers or conditioned build chambers. This segment is a deep-dive zone because the processing window around hinge survival is narrow and batch-dependent; published universal limits are not available for DM_4310.
Appliance control panel frames and laboratory enclosure housings require dimensional stability at moderate heat loads, typically below 60 °C. Moulded polypropylene has a heat deflection temperature under 0.45 MPa in the range of 50–60 °C for unfilled grades, which is sufficient for exterior surfaces away from heating elements. DM_4310 is used as a form-and-fit surrogate when the design includes ribs, bosses, and snap-tower geometry that must not shift after fastener insertion. Parts are often printed with increased wall thickness relative to production intent to compensate for lower modulus; screw boss pull-out torque is established on printed coupons before assembly trials. Thread-cutting screws are not driven into untested photopolymer bosses because the screw path can initiate conical cracking along the Z interface. Ultrasonic brass insert installation is performed only after the boss is reamed to a controlled interference fit. The operational boundary is explicit: DM_4310 should not be placed in contact with heating elements, steam jets, or condensing humidity above 55 °C for extended cycles unless dimensional checks are performed after each thermal excursion. Ketone-based solvent wipes are avoided because they can induce surface crazing on thin rib sections; isopropanol or water-based cleaners are used for inspection preparation. The segment is shallow for chemical data and deep for tolerance stability; unvalidated use above the deflection threshold results in creep at screw bosses and loss of snap-tower positional accuracy.
Competitive Proto3000 Objet Digital Materials™ DM_4310 Polypropylene-like Prototyping Polymer prices that fit your budget—flexible terms and customized quotes for every order.
For samples, pricing, or more information, please contact us at +8618136850665 or mail to admin@ascent-chem.com.
We will respond to you as soon as possible.
Tel: +8618136850665
Email: admin@ascent-chem.com
Flexible payment, competitive price, premium service - Inquire now!
Proto3000 Objet Digital Materials™ DM_4310 Polypropylene-like Prototyping Polymer is a PolyJet photopolymer resin system supplied for Objet Connex and Objet Eden platforms with two-component digital-material blending capability. Published data for this specific DM_4310 configuration is limited; the controlling manufacturer’s datasheet and lot certificate are the authoritative source for release values. Where DM_4310-specific values are not reproduced below, class-level ranges for polypropylene-like PolyJet materials are used and identified by test method. The material is not a thermoplastic polypropylene; it is an acrylate network generated by combining rigid and elastomeric precursor resins in the printhead and curing them with ultraviolet radiation. The numerical suffix in the DM_4310 designation is a supplier digital-material code rather than a Shore A or Shore D hardness reading.
In a PolyJet system, the resin feed is maintained at 70–75 °C to bring viscosity into the range required for piezoelectric inkjet deposition, typically 9–15 mPa·s at the jetting temperature. Layer height is selected at 16 µm or 30 µm depending on build mode. Curing is performed immediately after droplet deposition by UV lamps mounted on the printhead carriage. Sacrificial support material is deposited in undercuts, snap-fit recesses, and through-holes; it is removed after the build with a water-jet station at system-specified pressure, generally 2–5 bar. The support removal step is followed by low-temperature drying to stabilise mass and dimensions before measurement.
The mechanical fingerprint of DM_4310 arises from voxel-level mixing of a rigid Vero-family polyacrylate phase and an elastomeric Tango-family phase. Unlike melt compounding in a twin-screw extruder, the digital material is not mixed as a melt; the precursor droplets are deposited in a predetermined ratio and co-cured in situ. The resulting network is heterogeneous at the print-voxel scale. The stress–strain response therefore depends not only on the ratio of the two constituents but also on local degree of conversion, interdiffusion at droplet boundaries, and the layer-by-layer UV dose schedule.
The cure mechanism is radical photopolymerization of acrylate and methacrylate groups. Photoinitiator cleavage produces free radicals at UV wavelengths centred near 365 nm; the deposited layer receives a finite dose that must exceed the threshold for gelation before the next layer is applied. Insufficient dose produces a semi-cured interlayer with reduced tensile strength and increased solvent uptake. The blending ratio of DM_4310 shifts the network toward higher elongation by introducing lower-crosslink-density elastomeric domains, but it also reduces the glass transition relative to rigid Vero systems. This trade-off is fundamental to the material class.
The term “polypropylene-like” indicates that the co-cured network has been formulated to approximate certain short-duration properties of unfilled polypropylene copolymers: moderate flexural stiffness, high elongation relative to rigid photopolymers, and improved resistance to brittle failure in thin-walled snap features. Compared with a rigid Vero-class material, DM_4310 has reduced flexural modulus and increased elongation, reducing notch sensitivity in closure features. Compared with a Tango-class elastomer, it has higher Shore hardness and lower elastic recoverability, making it suitable for shell-like structural prototypes. Compared with actual polypropylene, the photopolymer does not contain semi-crystalline lamellae, so yield kinetics, fatigue crack propagation, and solvent resistance do not transfer directly. The voxel-level architecture also affects surface finish and dimensional stability. Regions where the rigid precursor dominates exhibit higher stiffness and lower water uptake, while elastomeric domains contribute to compliance and impact energy dissipation but increase time-dependent recovery after flexure. DM_4310 should therefore not be treated as a homogeneous isotropic material when critical snap-fit or pressure-retaining features are oriented across multiple build planes.
For closure design and living-hinge evaluation, the relevant class-level short-term property envelope is shown in the following table. The values are not lot-release specifications for DM_4310; they represent the range commonly reported for PP-like PolyJet digital materials and should be verified against the supplier’s certificate of analysis.
| Property | Method | Apparatus | Typical class envelope |
|---|---|---|---|
| Tensile strength | ASTM D638-14 | Universal testing machine, Type IV specimen | 20–35 MPa |
| Elongation at break | ASTM D638-14 | Universal testing machine, Type IV specimen | 20–45% |
| Flexural modulus | ASTM D790-17 | Three-point bend fixture | 700–1,200 MPa |
| Notched Izod impact | ASTM D256-10 | Izod impact tester, notched | 20–60 J/m |
| Heat deflection temperature | ASTM D648-16 | Oil bath, 0.45 MPa | 40–55 °C |
| Shore D hardness | ASTM D2240-15 | Durometer | 40–75 |
| Water absorption | ASTM D570-98 | Immersion | 0.9–1.5% |
| Density | ISO 1183-1 | Displacement | 1.14–1.18 g/cm³ |
Build orientation has a measurable influence on elongation at break. Specimens printed with the tensile axis in the Z direction may show lower ultimate tensile strength than X-Y specimens because interlayer adhesion is the limiting interface. The reduction is process dependent and can reach 15–25% in high-speed build modes; design teams commonly compensate by orienting snap beams away from the Z axis or by increasing cross-sectional area at the root. The notch sensitivity of photopolymer networks is higher than that of unfilled PP, so Izod values should not be used as a substitute for component-level impact testing on printed geometries.
The allowable processing window for DM_4310-class materials is narrow. Viscosity in the jetting head is temperature dependent; a deviation of more than ±5 °C from the equipment setpoint can shift the material outside the piezoelectric inkjet firing range. The result is banding, missing nozzles, and local under-cure. Production-scale Connex systems operating through long builds have shown that chamber fluctuations beyond ±5 °C can alter the tack of deposited film before UV exposure, changing support bonding and creating horizontal witness lines. Relative humidity above 60% is also problematic: water uptake at the uncured resin surface can produce haze, reduce interlayer adhesion, and increase edge delamination in thin sections. The printer environment must be maintained within the limits specified in the system manual.
Long-duration builds on digital material systems also require attention to waste accumulation on the roller or wiper. Uncured residue from the roller can transfer between regions and change local surface energy, leading to localised delamination. The service interval for the roller and the UV lamp energy calibration must follow the equipment manufacturer’s schedule; lamp energy decay below the supplier threshold reduces top-surface conversion and increases moisture sensitivity.
Post-cure heat treatment is constrained by the heat deflection range. Oven post-curing above 60 °C is not recommended for class-level PP-like photopolymers because distortion can occur before meaningful additional conversion is achieved. Stress relief, if required, is typically performed below 40 °C and followed by dimensional verification. The material should not be exposed to hydrocarbon solvents, strong acids, or amine-based cleaners; these agents can swell or etch the acrylate network even at room temperature.
Application cases for DM_4310 include snap-fit battery doors, container lids, fluid reservoir enclosures, instrument housings, and jigs where the prototype is subjected to repeated assembly but not elevated thermal load. In snap-fit geometries, class-level data support design strains at or below 8–10%; higher local strains at sharp corners can initiate microcracking during repeated engagement. Fastener bosses are evaluated with hole-bearing tests rather than self-tapping thread studies because the photopolymer is more notch-sensitive than unfilled PP. Dimensional tolerance is controlled by build mode and shrinkage compensation; flat panels above 100 mm in span may bow if the build chamber temperature is non-uniform or if UV exposure is asymmetric.
Because DM_4310 is a thermosetting photopolymer, melt flow rate by ISO 1133-1:2022 is not applicable. This is a primary difference from injection-moulding PP grades, where melt flow rate controls fill behaviour and is a lot-release parameter. The photopolymer cannot be re-melted, welded thermally, or reground into filament. In fluid reservoir prototypes, sealing surfaces often require post-printing abrasion with 400–600 grit paper and gasket compression. Elastomer gaskets should be selected from materials compatible with the acrylate network, as plasticiser migration from some rubber gaskets can soften the photopolymer surface. Creep under clamp load should be measured at the expected service temperature, because heat deflection temperature is not a creep limit.
Support removal is the main post-processing bottleneck for snap-fit and closure prototypes made from DM_4310. Sacrificial support material must be completely cleared from engagement surfaces or assembly interference occurs. Water-jet pressure must stay within the system-specified range; excessive pressure or immersion in water above 30 °C can increase water uptake and soften thin edges. Drying should be performed below 40 °C until mass stabilises. Dimensional verification is performed after conditioning because photopolymer water uptake can shift dimensions by more than 0.1% in hygroscopic conditions.
Shrinkage compensation is usually applied in the X and Y axes at values below 0.5%. The Z dimension is more sensitive to layer height and interlayer cure, so critical Z-height features should be measured after the first build of a new lot. Batch-to-batch variation in precursor ratio can produce slight differences in flexural modulus and heat deflection temperature; a first-article build using each new cartridge lot is a common production control when the part will be used for gauge or assembly verification.
In direct comparison with fused deposition modelling of PP filament, DM_4310 produces smoother sidewalls and does not require a heated chamber to control warpage; however, it does not reproduce the semi-crystalline morphology, weld-line behaviour, or fatigue resistance of melt-extruded PP. Compared with stereolithography polypropylene-like resins, DM_4310 is processed on PolyJet systems with digital material flexibility, allowing Shore hardness to be selected without changing resin cartridges. Compared with machined or moulded PP, the photopolymer grade has lower heat deflection temperature, higher moisture uptake, and lower resistance to hydrocarbon solvents. Creep modulus under continuous load should be measured before using DM_4310 in a load-bearing assembly. For regulatory documentation, the supplier safety data sheet and product declaration should be consulted; the material is not automatically compliant with FDA 21 CFR food-contact or USP Class VI requirements unless specifically certified. Any application involving skin-contact or medical-device prototyping should be reviewed against ISO 10993-1, but no biocompatibility claim is implied by the polypropylene-like designation.
