| HS Code | 255046 |
| Product Name | 3D Systems VisiJet EBK-ENT-R89 Multi-Material Composites |
| Base Materials | VisiJet CE-BK + VisiJet CE-NT |
| Material Type | Multi-Material Composite |
| Hardness | Shore A 89 |
| Tensile Strength | 8.0 MPa |
| Elongation At Break | 120% |
| Tear Strength | 30 kN/m |
| Compression Set | 25% |
| Density | 1.12 g/cm³ |
| Water Absorption | 0.4% |
| Dielectric Strength | 15 kV/mm |
| Volume Resistivity | 10^14 ohm-cm |
| Color | Black |
As an accredited 3D Systems VisiJet EBK-ENT-R89 Multi-Material Composites (VisiJet CE-BK + VisiJet CE-NT) factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | |
| Shipping | |
| Storage |
In soft-tissue surgical simulation, tactile feedback is dictated by the compression response of the printed elastomer rather than geometric accuracy alone. The VisiJet CE-BK and VisiJet CE-NT pair is processed on a compatible MultiJet Printing system with digital material capability at a nominal 32 µm layer thickness; the build preparation software assigns CE-NT-dominant zones to parenchymal tissue volumes and CE-BK-rich zones to vascular wall structures, tumour margins or pre-segmented pathologies. The material ratio is varied at the voxel level so that the transition between simulated tissue planes avoids a discrete parting line, which is critical when the model is used for ultrasound-guided needle insertion or laparoscopic clipping rehearsal. Support wax is removed in a dedicated melt-out cycle followed by ultrasonic agitation in a non-solvent bath to prevent residual paraffinic material from stiffening thin-walled vessel lumens. Printed models are then dried under low-humidity conditions before being packed in double-sealed containers to avoid water uptake that would alter Shore A readings. Terminal parts include renal parenchyma/tumour replicas, bronchial tree trainers and vascular access phantoms. Because the materials are not supplied with an ISO 10993 certification package, patient-contact or implantable devices are excluded; institutional validation is performed using ISO 10993-5 cytotoxicity and ISO 10993-10 skin irritation protocols on each sterilised lot before use in skills laboratories.
Where a handheld consumer electronics enclosure is evaluated for a soft-touch overmould, the interface between the CE-BK-dominant outer skin and the CE-NT-dominant core must be designed as a continuous digital material gradation rather than a discrete mechanical joint, because a sudden modulus step concentrates peel stress at the substrate boundary. The build recipe on the MJP system is set so that CE-BK-enriched outer layers deliver the low-gloss, black tactile surfaces expected on control knobs and grips, while CE-NT-rich underlayers remain deformable enough to absorb drop impacts. Production-grade evaluation runs use a three-point CE-BK/CE-NT ratio ladder that brackets the target injection-moulded TPE Shore A range rather than relying on a single supplier-reported value; the selected ratio is verified under ASTM D2240 after support wax removal and ambient stabilisation. Post-processing includes support wax removal followed by a controlled conditioning period in a clean, low-humidity cabinet; any residual tack on CE-BK outer layers indicates underprocessing and is rejected before assembly testing. Terminal prototypes include ergonomic test fixtures for portable diagnostic devices, handheld scanners and consumer wearables. Compliance verification prior to release is conducted under IEC 62368-1 for enclosure mechanical stress, RoHS 2011/65/EU restricted substance screening, and REACH SVHC declarations for supplied packaging and material resin.
When a process-scale elastomer seal is converted from compression-moulded EPDM to a digital elastomer composite, the first verification milestone is compression set under thermal ageing. For this VisiJet CE-BK and CE-NT composite system, printed gasket and diaphragm candidates are built in a vertical orientation to minimise stair-step artefacts on sealing lands, then support wax is evacuated from blind grooves before ambient stabilisation. The CE-BK-rich outer sealing lips are matched to the gland’s required durometer range; CE-NT-rich mid-layers provide elastic recovery during repeated open/close cycles. Validation is performed under ASTM D412 die C tensile, ASTM D2240 durometer, and ASTM D395 Method B compression set at elevated temperature; published data for this specific CE-BK/CE-NT composite configuration is limited, so pre-production lots should be aged at the actual process media temperature and compared against the incumbent EPDM Shore A tolerance band. Terminal components include vacuum cup seals, sanitary clamp gaskets, and pilot-valve diaphragms. Fluid compatibility must be re-established for the digital composite because the photopolymer network differs from peroxide-cured EPDM; exposure testing under ISO 188 for hot air ageing and ISO 1817 for liquid resistance is required before installation in production lines.
| Validation discipline | Reference method | Specimen condition | Decision gate |
|---|---|---|---|
| Tensile stress at break | ASTM D412 Die C | As-printed, post-wax removal, 7-day ambient stabilisation | Must exceed incumbent EPDM lower tolerance after media ageing |
| Durometer | ASTM D2240 Type A | Stacked 6 mm platen, 15 s reading | Shore A within gland design tolerance |
| Compression set | ASTM D395 Method B | 25% deflection, 70 h, process temperature | No gross surface cracking or permanent set beyond incumbent tolerance |
| Liquid immersion | ISO 1817 | Immersion in process medium at service temperature | Volume swell, hardness delta and mass change all within sealing system allowance |
Within footwear development, the suitability of a digital elastomer composite for midsole and orthotic prototypes depends on flex fatigue resistance and moisture uptake under simulated gait. The MJP build setup for a midsole lattice uses CE-NT-dominant cells in the arch and forefoot regions to approximate low-Shore A cushioning foams, while CE-BK-rich boundary layers are assigned to the ground-contact zones to resist abrasion during wear testing. The CE-BK/CE-NT ratio is varied across the part height to produce a functional hardness gradient; test samples are printed at the same orientation and layer thickness as the full midsole to avoid anisotropic bias. After support wax removal and thermal conditioning, the prototypes are subjected to ASTM F1614 shock attenuation and ISO 17707 flexing on the forepart of the sole under dry and sweaty-wet conditions. The terminal outputs are evaluation midsoles, heel counter blanks, and contoured orthotic insole prototypes for clinical fitting studies. Published data for this exact composite pair in whole-footwear geometry is limited, so each footbed lot is benchmarked against a two-component polyurethane reference in the same test fixture. Continuous skin contact is not recommended unless the device is covered with a breathable sock liner and tested for skin sensitisation under ISO 10993-10; any residual monomer concern must be cleared by a supplier conditioning certificate before user trials.
Pneumatic soft-robotic grippers manufactured from VisiJet CE-BK and CE-NT rely on hollow bending chambers that must retain internal pressure without wall delamination. In this application, CE-BK-rich outer walls are selected for higher stiffness at the grip jaw base, while CE-NT-dominant thinned bellows sections provide elastic expansion under actuation. The build is oriented so that each air channel has a drain path for molten sacrificial wax; support removal is executed as a two-stage melt-out at the supplier-referenced wax temperature followed by vacuum evacuation of any residue. Wall thickness is maintained above the minimum recommended in the build preparation software for the selected CE-BK/CE-NT ratio, and thickened at the pneumatic inlet, because residual wax and uncured resin in blind channels create stress concentrators under repeated pressure cycling. Validation for end-of-arm tooling includes pneumatic pressure cycling at a 1.5 safety factor over the system’s rated working pressure, plus tensile and tear screening under ASTM D412 and ASTM D624. Terminal parts are compliant gripper jaws for collaborative robots and vacuum pick-and-place bellows. Contact-force mapping for collaborative applications is verified under ISO/TS 15066; any end-of-arm assembly must be retested after geometry changes because local stiffness varies with the CE-BK/CE-NT voxel ratio.
Automotive wire harness grommets and flex protectors require a black, high-elongation elastomer that resists snagging and maintains a stable interference fit in body apertures. The VisiJet CE-BK/CE-NT digital pair is built with CE-BK-rich outer skins to provide the black colour and surface hardness expected from EPDM or TPS injection-moulded parts, while CE-NT-dominant inner collars are left softer to reduce insertion force during harness assembly. The CE-BK-to-CE-NT ratio is fixed after a first-article run is compared against the approved injection-moulded TPE Shore A and tear strength values. Support wax removal from the convoluted internal channels is the longest post-processing step; incomplete wax evacuation is identified by X-ray inspection before harness assembly. Candidate terminal parts include wiring harness grommets, cable exit boots, and flex-protection sleeves for short-run test vehicles. Validation for automotive evaluation includes ASTM D412 tensile, ASTM D624 tear, and ASTM D471 fluid immersion in engine bay reference fluids; however, this digital composite is not a direct substitute for long-term heat-aged EPDM without comparative ageing under the OEM’s temperature cycle specification.
Competitive 3D Systems VisiJet EBK-ENT-R89 Multi-Material Composites (VisiJet CE-BK + VisiJet CE-NT) 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!
VisiJet EBK-ENT-R89 is a multi-material composite build configuration for the ProJet MJP 2500 Plus platform, not a single-photopolymer grade. The SKU pairs VisiJet CE-BK, a pigmented elastomeric build material, with VisiJet CE-NT, the natural elastomeric counterpart, as separate cartridges. Both materials function as build materials; neither is a support wax. The product therefore differs from single-cartridge VisiJet elastomer purchases because the black and natural grades are intended to be managed together for jobs requiring multi-material elastomer regions or visual contract between material phases. Published mechanical data for this specific configuration are limited to the manufacturer’s current technical data sheet and lot-specific certificates. Numerical values for hardness, tensile strength, elongation, and tear must be taken from the controlled document before design release. The product is not an investment-casting resin, not a rigid engineering thermoplastic, and not a two-component condensation-cure silicone.
The approved equipment interface is the ProJet MJP 2500 Plus series. The EBK-ENT-R89 configuration uses the printer’s multi-material routing so that CE-BK and CE-NT remain isolated until jetting and planar UV cure. Build material cartridges are sealed and loaded into the machine bays without open pouring. The support material is a separate consumable and is not defined by the EBK-ENT-R89 part number unless the distributor package expressly includes it. Each cartridge is conditioned in the printer bay to the specified jetting temperature before printing. Viscosity is controlled by the system rather than by operator thinning; solvent addition is not permitted. When a cartridge reaches its expiration date, the machine log and manufacturer guidance govern disposal and replacement. Material lot changeover should be verified with a test build because black pigment dispersion can affect jetting stability and cure response in a measurable but lot-specific manner.
Before production builds, the operator records the cartridge lot, confirms that the machine recognizes both material channels, and checks that the support tank level is sufficient. No manual mixing is performed on the elastomer pair. The build chamber environment is maintained by the printer, but condensation on cold cartridges is discouraged. Cartridges brought from storage should be equilibrated to the ambient build room before insertion. The machine does not require the operator to pre-dry the photopolymer, but high-humidity handling should be minimized because moisture on the cartridge interface can disrupt meniscus formation at the jetting head. When a partially used cartridge is returned to storage, the cap and seal must be reinstalled according to the manufacturer’s cartridge management instructions. These controls reduce batch-to-batch drift in Shore A response and prevent cross-contamination between black and natural elastomer channels.
After the build, the green part contains sacrificial support wax that must be liquefied in a dedicated finishing oven. The oven temperature is kept below the thermal deformation threshold of the CE-BK/CE-NT elastomer pair. Once the wax softens, the part is transferred to an agitated finishing bath specified by the platform’s post-processing guide. The bath medium is not arbitrarily replaced with aggressive solvents. Ketones, chlorinated solvents, and strong aromatic cleaners can swell or tackify low-durometer photopolymers and are not recommended for wiping VisiJet CE-BK or CE-NT parts. After support removal, residual finishing agent is washed from the surface; any surface film left on the elastomer can alter friction, haptics, and subsequent coating adhesion. Dimensional stabilization occurs at room temperature after support removal. Immediate compressive-set testing may show different recovery behaviour than testing after 24 h of unloaded rest. The current handling guide therefore specifies a minimum conditioning interval before metrology and mechanical testing.
Mechanical property verification for elastomeric materials is usually reported with standardized elastomer test methods. When lot certificates are supplied, tensile strength and elongation at break may be generated under ASTM D412-16 or ISO 37:2017. Shore A hardness may be reported under ASTM D2240-15 or ISO 7619-1:2010. Tear strength, when stated, is normally generated under ASTM D624-00(2020) or ISO 34-1:2022. Density may be determined by ASTM D792-20 or ISO 1183-1:2019. These designations are test-method references only; they do not by themselves establish conformity limits. For an EBK-ENT-R89 package, the binding numerical specifications are the values listed in the current manufacturer technical data sheet. If the part is intended for skin-contact or medical device prototyping, cytotoxicity and sensitization documentation should be requested under ISO 10993-5 and ISO 10993-10, respectively, for the exact material grade and post-process condition. Published data for this specific configuration is limited where the intended use requires long-term dynamic flex-fatigue life or repeated autoclave exposure.
| Material class | Principal mechanical property | Representative test standard | Boundary condition |
|---|---|---|---|
| CE-BK/CE-NT elastomer pair | Shore A hardness, tensile elongation, tear | ASTM D412-16, ASTM D2240-15, ISO 34-1:2022 | Low-durometer, high-strain use; not rigid structural |
| Rigid M2R photopolymer | Tensile yield, flexural modulus, heat deflection temperature | ASTM D638-14, ASTM D790-17, ASTM D648-18 | Higher stiffness, lower elongation ceiling |
| Castable M2 CAST | Ash residue, burnout behavior | ASTM D2584-18 or manufacturer internal method | Investment casting; not for elastomer end-use |
| Support material | Melt point, wax residue | ASTM D127-19 or manufacturer method | Sacrificial removal; separate consumable |
Typical application classes for EBK-ENT-R89 include gasket prototypes, bellows, soft-touch overmolding mock-ups, compliant seals, anatomical training models, wearable device housings, and low-durometer connector strain reliefs. The black grade provides contrast where marking legibility or visual boundary definition is required. The natural grade is used where unpigmented elastomer assists inspection of internal channels or interface lines. These materials are not intended for high-temperature underhood seals, load-bearing structural members, or repeated pressurized steam sterilization unless the current technical data sheet explicitly supports the duty cycle. Elastomer parts used in dynamic flex applications require end-user testing with the intended geometry because fatigue crack-growth behaviour is geometry- and thickness-dependent. Compression-set testing under ASTM D395-18 or ISO 815-1:2019 may be relevant for sealing applications, but acceptance values are not universal and must be derived from the actual part cross-section.
The functional difference between EBK-ENT-R89 and the rigid VisiJet M2R family is the elastomer class response rather than a simple colour change. CE-BK and CE-NT exhibit low durometer, high elongation, and rubber-like recovery, whereas VisiJet M2R materials are specified for tensile yield, flexural modulus, and heat deflection under load. A snap-fit or structural boss should not be generated in CE-BK or CE-NT if the load requires rigid M2R-level stiffness. Conversely, a rigid M2R component is not an appropriate replacement for a CE-BK/CE-NT lip seal or cushioning element because its low elongation cannot accommodate the same strain. VisiJet M2 CAST is formulated for burnout in investment-casting shells, not for elastomer end use. EBK-ENT-R89 is not a drop-in replacement for M2 CAST and should not be used where ash residue limits exclude non-castable photopolymers. VisiJet M2G-DUR is a tough rigid material with higher structural capability than the CE elastomer pair and belongs to a separate material class.
The multi-material aspect of EBK-ENT-R89 is operationally distinct from ordering CE-BK or CE-NT as individual cartridges. A single-cartridge order limits the build to one elastomer colour in the available material channel. The EBK-ENT-R89 configuration allows the black and natural grades to be managed as a paired set, which is relevant when the job requires confirmed compatibility between two elastomer lots and a shared support-removal workflow. The pairing does not alter the fundamental chemistry of either grade. Black-pigmented CE-BK may require slightly different visual-inspection parameters after support removal because residual wax is more difficult to detect on dark surfaces than on natural CE-NT. Inspection lighting and magnification should be validated on both colours during first-article qualification.
Chemical compatibility is narrower than many thermoplastic elastomers. The materials should be kept away from aggressive organic solvents, strong oxidizing cleaners, and aromatic fuel blends. Short-term skin contact during dry handling is not a substitute for formal biocompatibility assessment. The manufacturer’s safety data sheet defines storage, disposal, and exposure-control requirements. Regulatory compliance for REACH, RoHS, and FDA 21 CFR where relevant must be confirmed from the latest supplier documentation for the purchased lot. RoHS and REACH statements may apply to the cartridge and the cured polymer differently; both should be checked before export or medical-device use. No claim of food-contact or implantable status is carried by the EBK-ENT-R89 part number alone.
Elastomeric photopolymers are generally more sensitive to oxidative and ultraviolet aging than high-durometer engineering plastics. CE-BK and CE-NT parts should not be placed in continuous outdoor exposure or near high-energy UV sources unless the end user validates property retention. Elevated temperature testing should be performed at the specific temperature defined by the application envelope. A one-time heat spike may cause temporary softening, but repeated thermal cycling can shift compression set and tear strength. Dimensional checks after thermal exposure must use the same fixtures and conditioning interval as the initial baseline. Because natural CE-NT lacks the carbon black present in CE-BK, its resistance to ultraviolet-induced surface change may differ from the black grade. Part colour should therefore be fixed early in design qualification.
For sealing and gasket applications, the final inspection should include durometer testing under ASTM D2240-15, dimensional audit, and visual inspection for wax residue or surface cracking. Batch-to-batch variation is managed by lot traceability, not by assuming identical hardness across campaigns. When a new lot of CE-BK or CE-NT is introduced, a small validation build is accepted practice before committing to a full production tray. The EBK-ENT-R89 part number is the supply configuration; the actual process window is set by the ProJet MJP 2500 Plus platform, the current VisiJet CE-BK/CE-NT handling guide, and the support-material documentation. Published data for this specific configuration is limited where the user requires finite-element hyperelastic coefficients such as Mooney-Rivlin or Ogden parameters; those values must be generated by coupon testing rather than inferred from nominal mechanical data.
