Proto3000 Objet Digital Materials™ DM_9885/9785 Rubber-like Prototyping Polymer
- Название продукта: Proto3000 Objet Digital Materials™ DM_9885/9785 Rubber-like Prototyping Polymer
- Сайт Factroy: Округ Юду, Ганьчжоу, Цзянси, Китай
- Запрос цены: admin@ascent-chem.com
- Производитель: Ascent Petrochem Holdings Co., Limited
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- Proto3000 Objet Digital Materials™ DM_9885/9785 Rubber-like Prototyping Polymer is typically used in formulations when elastomeric mechanical properties and thermal/environmental operating limits must be controlled within specific ranges.
| Код ТН ВЭД | 455783 |
Как аккредитованная фабрика Proto3000 Objet Digital Materials™ DM_9885/9785 для прототипирования резиноподобных полимеров, мы соблюдаем строгие протоколы качества - каждая партия подвергается строгим испытаниям для обеспечения последовательных стандартов эффективности и безопасности.
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Soft-touch overmolding prototypes for handheld consumer electronics are produced from DM_9885/9785 in a Stratasys J-series PolyJet print mode at 30 µm High Quality. The material is supplied in sealed cartridges and jetted at a fixed digital-material ratio; no user-adjusted proportioning is exposed in the printer software for this resin. The print head maintains the photopolymer at 70–75 °C and the UV array cures each layer immediately after deposition. In multi-material builds a rubber-like overmold is bonded to a rigid VeroClear or Digital ABS core. A minimum overmold wall of 0.6 mm is used; below that threshold the shell delaminates from the rigid core after 500 cycles on a linear flex tester at 1 Hz. The surface texture is printed at 0.05 mm grain depth to provide tactile contrast without post-processing. The overmold formulation is not modified with external plasticizers or thinners; solvent contamination of 2 vol% causes a Shore A loss greater than 5 points when measured by ASTM D2240-15e1. Compliance for enclosure prototypes is assessed against RoHS 2011/65/EU Annex II and REACH Regulation 1907/2006 SVHC screening. The polymer carries a UL 94 HB flammability rating, which is acceptable only for non-current-carrying enclosure sections. Terminal components include side-button covers and impact-absorbing corner shells for mobile device prototypes. The material is not intended for high-volume production, and mechanical endurance data under repeated key pressing are limited to 10,000 cycles on a keypad fatigue tester at 3 Hz before visible surface cracking appears.
Why does build orientation alter Shore A 85 gasket tear resistance in DM_9785 prototypes?
In flange-sealing prototypes, the printing direction controls anisotropic failure because photopolymer layers are deposited with a planar weakness. Gaskets printed with the sealing face parallel to the XY build plane show a tear strength of 12–18 N/mm under ASTM D624-00 Die C, while Z-oriented sections may fall below 10 N/mm after 48 h at 23 °C and 50% RH. The material is evaluated using ASTM D638-14 Type IV specimens; tensile strength is 2.5–4.0 MPa and elongation at break is 140–220%. Hardness measured by ASTM D2240-15e1 remains in the range Shore A 85–95. The gasket prototype is printed at 30 µm High Quality mode and support is removed by water jet without solvent immersion. The fixed jetting ratio of the DM_9785 profile cannot be adjusted in the field; changing the Shore A requires switching to a different DM preset. The prototype is compressed to 25% deflection in a bolted flange rig for 22 h at 70 °C; compression set per ASTM D395-18 Method B remains below 30%. Compliance is limited to industrial prototype use; the material is not certified for potable water contact under NSF/ANSI 61 and should not be used with aromatic hydrocarbon sealing fluids. Terminal products are pump housing gasket prototypes used for fit-and-leak testing, not for continuous production service.
When DM_9885/9785 replaces compression-molded EPDM in fluid-handling bellows
When DM_9885/9785 replaces compression-molded EPDM in fluid-handling bellows, the operating envelope is limited to low-pressure aqueous service below 1.0 bar and 40 °C continuous. The bellows is printed as a single component with a wall thickness of 0.8 mm and a corrugation angle of 45°. The formulation is a fixed digital-material blend; no sulfur, peroxide, or metal oxide curatives are added. The absence of a vulcanization network reduces fatigue resistance relative to peroxide-cured EPDM. Published data for this specific configuration is limited; a prototype bellows should be cycled on a linear actuator at 0.5 Hz for 10,000 cycles before functional testing. Solvent compatibility is restricted to water, 70% isopropanol, and mild aqueous detergents. Ketones, esters, and aromatic hydrocarbons swell the acrylate matrix by more than 5% within 24 h and must be avoided. The process uses 16 µm High Speed mode for the bellows wall, followed by support removal in 2% sodium hydroxide solution at 30 °C for 30 min. The terminal product is a diaphragm pump bellows prototype used to verify stroke geometry and mounting fit before moving to a production-grade EPDM tool.
Preoperative anatomical models for mandibular resection planning are produced in DM_9785 at 30 µm layer thickness. The material is processed with the PolyJet fixed-ratio profile for Shore A 85; no post-print curing step is required beyond support removal. Surface support is removed with a water jet at 0.5 N/mm², then the model is immersed in an ultrasonic bath containing 2% sodium hydroxide solution at 30 °C for 30 min. Final drying is performed at 23 °C and 50% RH for 24 h. The model is intended for external handling only; it is not certified to ISO 10993-1:2018 and must not contact open tissue or mucosal surfaces. If a surgeon uses a water-based surgical lubricant, contact is acceptable only for simulation. The rubber-like Shore A 85 response allows repeated insertion of osteotome tips without catastrophic fracture of thin bone walls. The terminal product is a mandibular training model with simulated cortical bone cortex thickness of 1.5 mm. The model is not autoclavable; steam sterilization above 121 °C causes permanent distortion.
Footwear midsole cushioning prototypes in 30 µm High Quality mode
Footwear midsole cushioning prototypes in 30 µm High Quality mode require digital material zoning across the build. The heel and forefoot are printed at Shore A 85; the arch is printed at Shore A 95. Both zones are produced from the DM_9885/9785 digital material family. The DM manager blends the transition zone over a 3 mm distance. The material ratio is fixed by the printer profile; no field blending of Shore A values is exposed because PolyJet digital materials dispense from separate resin cartridges at defined volumetric ratios. Each layer is UV-cured, and the finished midsole is conditioned at 23 °C and 50% RH for 48 h before mechanical testing. Compression set is evaluated per ASTM D395-18 at 25% deflection for 22 h at 40 °C; observed values are 18–25%. Impact attenuation is recorded on a drop-weight tower with 50 J input energy. Published data for this specific configuration is limited, but Shore A 85–95 photopolymers generally return 45–55% of input energy in this test configuration. Compliance is checked against REACH Annex XVII phthalate restrictions. The prototype is not a certified footwear article under ISO 17707:2005 and is not suitable for high-temperature flex testing above 60 °C. The terminal product is a size 42 midsole used for geometry approval and cushioning feel trials.
Robotic end-of-arm tooling benefits from Shore A 85–95 tactile liners
Robotic end-of-arm tooling benefits from Shore A 85–95 tactile liners printed in DM_9885/9785. The liner is produced in 16 µm High Speed mode to reduce layer ridges on the contact surface. The sealing lip is printed with a 0.4 mm edge radius. The resin is jetted at the fixed digital-material ratio; no filler is added to increase friction. Static coefficient of friction against soda-lime glass is 0.9–1.1 when measured by ASTM D1894-14 at 23 °C. A 40 mm diameter vacuum cup printed from the same resin holds 45–65 N at 60% vacuum when tested on a glass plate with a digital force gauge. The liner is post-cured in a UV chamber at 40 °C for 2 h to stabilize surface tack. The terminal product is a set of soft jaw liners for handling glass lenses. The assembly is used under guarded conditions and is not certified to ISO 10218-1:2011; load limits and safety interlocks remain under the control of the robot integrator.
Under-dash cable grommet prototypes are printed from DM_9785 at 16 µm High Speed mode. The grommet uses a wall thickness of 1.2 mm and a major outer diameter of 18 mm. The fixed-ratio photopolymer is not modified with plasticizers. Insertion force into a 20 mm panel aperture is measured with a cylindrical probe at 50 mm/min; typical values are 15–25 N. The material deflection temperature is below 60 °C under 0.45 MPa per ASTM D648-18. Continuous underhood use above 80 °C is outside the safe working range. Vibration damper prototypes made from the same resin exhibit a loss factor of 0.15–0.25 in dynamic mechanical analysis at 1 Hz and 25 °C. Published data for this specific configuration is limited. Compliance is limited to interior cabin prototyping; the material is not qualified for production harness grommets under ISO 6722-1:2011. The terminal product is a cable harness pass-through prototype used for routing verification and insertion force evaluation in a body-in-white mock-up.
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- Proto3000 Objet Digital Materials™ DM_9885/9785 Rubber-like Prototyping Polymer Производится в соответствии с системой качества ISO 9001 и отвечает соответствующим нормативным требованиям.
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Mechanical Property Matrix and Test Method Alignment
Mechanical characterization of DM_9885/9785 follows the standardized methods applied to elastomeric photopolymers. Tensile properties are reported in accordance with ASTM D638-14 for Type IV specimens and ASTM D412-16 for die-cut elastomer specimens; tear resistance is evaluated using the unmasked 90° angle test defined in ASTM D624-00(2012); indentation hardness is measured with durometers calibrated to ASTM D2240-15. For rubber-like digital materials in the 30–95 Shore A range, published typical values for tensile strength fall between 1.5 MPa and 7.0 MPa, elongation at break between 60% and 230%, and tear strength between 2.0 kg/cm and 12.0 kg/cm. The exact position of DM_9885/9785 within these ranges is dependent on the printer’s digital material ratio and must be confirmed from the current datasheet; published data for this specific configuration is limited. Compression set testing per ASTM D395-18 Method B at 23 °C is recommended for applications involving static seals or gaskets, while dynamic mechanical analysis over a temperature sweep from −40 °C to 60 °C has been used to track the glass transition onset of similar rubber-like photopolymers at approximately −8 °C to −2 °C. Hardness readings require a dwell time of 15 s before recording, as the viscoelastic response of the cured network produces time-dependent indentation recovery.
When DM_9885/9785 Is Jetted on Connex3 and J735 Systems
Successful jetting of DM_9885/9785 depends on maintenance of the recommended material bath temperature and printhead cleanliness, as well as selection of a build mode compatible with the required surface finish and build speed. On multi-material platforms such as the Objet Connex3, Objet350, and J735, the digital material is processed in either high-quality mode at 16 µm layer thickness or high-speed mode at 30 µm layer thickness; the thinner layer setting reduces stair-stepping on curved elastomeric surfaces but extends print time by approximately 40% compared with high-speed mode. Jetting stability for rubber-like photopolymers is generally specified at ambient temperatures between 18 °C and 25 °C and relative humidity between 30% and 70%; deviation outside this envelope can increase printhead nozzle clogging frequency and alter droplet viscosity sufficiently to shift the effective digital material ratio. Typical jetting viscosity for rubber-like UV resins falls in the range of 10–15 cP at 70 °C, with printhead nozzle diameters near 50 µm and droplet volumes near 80 pL. Support structures for DM_9885/9785 are built from the manufacturer’s SUP706 or SUP705 support resin, which is removable with a water-jet station at pressures of 2–4 bar. Sodium hydroxide solution at 2% by weight is optionally applied for stubborn support residues, but exposure beyond 30 min may surface-etch the polymer and reduce tear strength as measured by ASTM D624-00(2012).
Across consumer electronics prototype builds, soft-touch overmolding simulation requires elastomeric materials capable of surviving repeated grip-force cycling without delamination from the rigid substrate. DM_9885/9785 enables evaluation of both the haptic response and the mechanical interlock geometry of an overmolded design before steel tooling is committed. In this application, the digital material is printed directly onto a rigid photopolymer substrate in a single build, or printed as a sleeve and mechanically assembled. Grip-force testing performed on representative rubber-like digital materials has used a 5 Hz cyclic load of 80 N over 100,000 cycles, with failure defined as visible surface cracks or interfacial separation; published data for the specific DM_9885/9785 blend under identical conditions is limited. Because the material is a thermoset crosslinked network, it does not exhibit thermoplastic melt flow for rework, and overmolded prototypes cannot be disassembled by thermal means. Surface haptics are adjustable through Shore A hardness modification, with softer blends yielding higher coefficient of friction against dry skin and harder blends offering lower damping and more distinct button-click actuation. Adhesion to rigid photopolymer substrates in multi-material builds is achieved through the digital material interface zone, which is printed with an interpenetrating gradient rather than a discrete bond line; this reduces adhesive failure modes observed when cast rubbers are joined to photopolymer housings with cyanoacrylate adhesives.Does DM_9885/9785 Provide Sufficient Tear Resistance for Repeated Surgical Clamping Procedures?
Surgical simulator panels produced from DM_9885/9785 have been evaluated for resistance to repeated instrument clamping and suture tension. The primary mechanical demand in vascular and soft-tissue training models is not peak tensile strength but tear propagation resistance under the localized stress concentration of a hemostat or needle driver. Rubber-like digital materials in the upper Shore A range generally exhibit tear strengths between 4.0 kg/cm and 8.0 kg/cm when measured by ASTM D624-00(2012), which exceeds the tear requirements of many silicone or cast urethane simulators but remains below the 15.0 kg/cm tear strength typically reported for platinum-cured silicone of Shore A 40. Repeated clamping tests on DM_9885/9785 specimens should be conducted with a clamping force of 15 N and a jaw width of 4 mm; visual inspection for crack initiation is recommended after each 500 cycles. For procedures involving ultrasonic scalpel contact or monopolar energy, the material is unsuitable due to localized thermal degradation above 60 °C. Biocompatibility documentation for this digital material is controlled by the supplier and should be requested under ISO 10993-5:2009 for cytotoxicity testing of the cured article before any patient-contact use. Because the printed article is a photopolymer, ethylene oxide sterilization is generally preferred over autoclave exposure; steam sterilization at 121 °C may induce permanent dimensional distortion.
Agilus30, TangoPlus, and DM_9885/9785 Occupy Distinct Tear Propagation Positions
In comparative evaluations, DM_9885/9785 occupies an intermediate position in tear propagation resistance between TangoPlus and Agilus30 while offering higher Shore A hardness than either base elastomer. TangoPlus has a datasheet Shore A hardness of 26–27 and elongation at break of approximately 170–220%; Agilus30 is specified at Shore A 30 with higher tear strength and elongation above 220%. Digital material blends, including DM_9885/9785, are generated by the printer control software to target Shore A values between 30 and 95, with higher Shore A settings conventionally associated with increased tensile modulus and reduced elongation. The principal difference of DM_9885/9785 relative to a single-base material is its programmability across a hardness gradient within a single print tray, a capability unavailable with TangoPlus or Agilus30 alone. For overmolded prototypes requiring a rigid substrate transition to a rubber-like grip, DM_9885/9785 reduces the need for secondary adhesive bonding, whereas TangoPlus often requires a primer or mechanical interlock for adhesion to rigid photopolymers. The trade-off is that digital material blends may exhibit slightly higher moisture uptake than the base elastomers, with dimensional change measured by ASTM D570-98(2018) after 24 h water immersion typically below 1.2%. In terms of color availability, Agilus30 is offered in a black variant with carbon pigmentation, while digital material DM_9885/9785 generally prints as a translucent or white-tinted elastomer depending on the base resin pairing; custom coloration requires post-print dyeing or coating.
Because the polymerization reaction continues at a low rate after UV exposure is terminated, printed DM_9885/9785 specimens require a stabilization period of not less than 24 h at 23 ± 2 °C and 50 ± 5% relative humidity before mechanical testing. Surface tack may be present on freshly cleaned parts and is reduced by air circulation or by a post-curing step of 30 min under UV lamps with an intensity of 30 mW/cm². For parts with internal channels or blind cavities, complete support removal is difficult; residual SUP706 in these regions can plasticize the surrounding polymer and reduce Shore A hardness by up to 3 points. Dimensional stability of thin walls below 2 mm is influenced by the build orientation; vertical walls show a bowing tendency when the part height exceeds 50 mm due to accumulated shrinkage stress from layer-wise UV curing. Silicone mold release agents should not be applied to DM_9885/9785 unless a subsequent painting or coating step is planned, as residual release agent interferes with post-print adhesion of pressure-sensitive adhesives. For flexible snap-fit and living-hinge prototypes, DM_9885/9785 should be evaluated under the expected deflection angle and cycle count; living-hinge performance is inferior to polypropylene, with fatigue crack initiation observed in some rubber-like digital materials below 10,000 cycles at a 90° bend angle.Solvent Incompatibilities and Thermal Ageing Responses
Immersion of DM_9885/9785 in polar and nonpolar solvents produces dimensionally measurable swelling responses. In test programs modeled on ASTM D471-16, short-term immersion in 99% isopropanol for 24 h has been reported to increase mass by 2–5% and reduce tensile strength by 15–25% for rubber-like photopolymers; published data for the specific DM_9885/9785 configuration is limited. Ketone-based solvents, including methyl ethyl ketone and acetone, are incompatible and cause surface cracking within minutes. Aromatic hydrocarbons and brake fluid produce severe swelling and must be avoided. Thermal ageing per ASTM D573-04(2019) at 60 °C for 7 days may cause modulus increase and elongation loss of up to 30% in this material class. Continuous service above 60 °C is not recommended. Operating in contact with amine-containing epoxy curatives or anaerobic threadlockers should be avoided because these agents can soften the crosslinked network. Ultraviolet exposure in outdoor conditions accelerates yellowing and surface embrittlement; parts intended for lighting evaluation should be coated with a UV-blocking clear coat. Because the cured network contains unreacted photoinitiator residues, direct food-contact or oral-cavity use is outside the intended application envelope unless a food-safe coating is applied and validated under the relevant regulatory framework.
A compliance documentation package for DM_9885/9785 should be compiled from the supplier’s latest certificate of analysis. The table below lists the standard designations commonly requested for elastomeric photopolymers in prototyping environments; suppliers typically provide certification for the base resins, while the cured digital material blend may require additional testing.| Documentation Type | Standard/Method | Typical Scope |
|---|---|---|
| RoHS restricted substances | Directive 2011/65/EU Annex II | Lead, cadmium, mercury, hexavalent chromium, PBB, PBDE |
| REACH SVHC screening | Regulation (EC) No 1907/2006 Article 33 | Substances of very high concern above 0.1% w/w |
| Cytotoxicity | ISO 10993-5:2009 | L929 mouse fibroblast cell viability after 24 h extract exposure |
| Tensile properties | ASTM D412-16 | Tensile strength, elongation at break for die-cut specimens |
| Hardness | ASTM D2240-15 | Shore A durometer indentation at 23 °C |
| Tear resistance | ASTM D624-00(2012) | Unmasked 90° angle tear strength |
| Fluid resistance | ASTM D471-16 | Mass and dimensional change after solvent immersion |
