| HS Code | 259388 |
| Productname | Stratasys Vero PureWhite RGD837 |
| Materialtype | PolyJet Photopolymer |
| Printingtechnology | PolyJet |
| Color | White |
| Tensilestrength | 50-60 MPa |
| Elongationatbreak | 10-25% |
| Modulusofelasticity | 2000-3000 MPa |
| Flexuralstrength | 75-110 MPa |
| Flexuralmodulus | 2200-3200 MPa |
| Izodnotchedimpact | 20-30 J/m |
| Shoredhardness | 83-86 |
| Density | 1.17-1.18 g/cm³ |
| Heatdeflectiontemperatureat0 45mpa | 45-50 °C |
| Heatdeflectiontemperatureat1 82mpa | 40-45 °C |
| Waterabsorption | 1.5-2.5% |
| Glasstransitiontemperature | 52-54 °C |
| Coefficientofthermalexpansion | 80-100 µm/m·°C |
| Dielectricstrength | 14-16 kV/mm |
| Volumeresistivity | 10^14-10^15 ohm·cm |
| Surfaceresistivity | 10^15 ohm |
As an accredited Stratasys Vero™ VERO PUREWHITE RGD837 PolyJet 3D Printing PhotoPolymer factory, we enforce strict quality protocols—every batch undergoes rigorous testing to ensure consistent efficacy and safety standards.
| Packing | One sealed 1 kg cartridge of Stratasys Vero PureWhite RGD837 PolyJet photopolymer, in original labeled protective packaging with handling information. |
| Container Loading (20′ FCL) | Container Loading (20′ FCL): Palletized Stratasys Vero PureWhite RGD837 PolyJet photopolymer cartridges loaded, secured, and sealed in a 20-foot full container. |
| Shipping | Stratasys Vero PureWhite RGD837 is shipped as a non-regulated, non-hazardous photopolymer unless otherwise specified. Use original sealed, light-blocking containers, upright and secured, at ambient temperature. Protect from UV, heat, freezing, and impact. Do not freeze. Avoid direct sunlight. Keep containers closed. Include SDS and follow carrier/manufacturer requirements. |
| Storage | Store Stratasys Vero PureWhite RGD837 in its original, sealed cartridge, upright, in a cool, dry, dark, well-ventilated area. Keep away from direct sunlight, UV light, heat, sparks, and flames. Maintain recommended temperature, typically 15–25°C (59–77°F); do not freeze. Keep containers closed when not in use, and follow the SDS and local regulations. |
| Shelf Life | Store sealed, away from light, at 15–25°C; Stratasys specifies approximately 18 months shelf life from date of manufacture. |
CT-derived anatomical replicas and pre-surgical planning models are printed in Vero PureWhite RGD837 when the procedure requires an opaque white rigid substrate that can be marked, drilled, and fixed in instrument trays without immediate fracture. In a PolyJet run with 16 μm layer thickness, boundaries between cortical and cancellous bone are preserved only if the DICOM segmentation step uses a Hounsfield threshold calibrated to the scanner protocol rather than a fixed default; the resulting STL surface is then checked for inverted normals, because lamellar bone voids below 0.3 mm can be lost during mesh decimation. During mock osteotomy, oscillating surgical saw blades generate local heat at the cut plane; the published heat deflection temperature of RGD837 under ASTM D648-18 at 0.45 MPa is in the 45–50°C range, so any powered cut should be validated with thermocouple instrumentation before use in a teaching or planning workflow. RGD837 is not supplied as an ISO 10993-validated implantable grade; public datasheet information for permanent tissue contact or mucosal exposure is limited, and the material should be treated as a transient anatomical visualisation aid under a facility-specific risk file aligned to ISO 14971. Cleaning with steam autoclave at 121°C will deform the part; low-temperature hydrogen peroxide gas plasma may be screened for surface compatibility, but published chemical compatibility data for this specific formulation are limited. The batch history should record the raw resin lot, printer serial number, and post-process dimensional check to allow traceability from DICOM series to printed model in a quality system audited against ISO 13485.
Consumer electronics enclosure covers printed in RGD837 are used for snap-fit verification because the material provides a rigid, non-translucent housing that can be coated to simulate production ABS or polycarbonate. The tensile elongation at break range of 10–25% under ASTM D638-14 is commonly cited as the outer design band, but cantilever snap retention must be derated for cyclic assembly: after repeated insertion, the acrylate network can accumulate strain as a result of creep, and published cyclic retention data for this specific photopolymer are limited. Snap beams are oriented in the X-Y build plane because interlayer adhesion along the Z axis is weaker; a beam printed vertically can show delamination at the neutral axis before the designed flexural strain is reached. For a straight cantilever snap with constant rectangular cross-section, maximum bending strain at the root can be calculated as 1.5·t·y/L², where t is beam thickness, y is undercut depth, and L is effective beam length. The calculated value should be kept below 4–6% when the part is expected to survive an assembly-line test sequence, and any prototype intended for more than 10,000 insertion cycles should be evaluated on a dedicated fatigue fixture rather than extrapolated from static tensile data. Bosses for self-tapping screws are printed with an undersized pilot hole of 0.8–0.85 times the thread outer diameter to limit hoop stress. Torque-to-strip trials should be instrumented with a torque screwdriver recording at 0.1 N·m increments because published generic stripping torque values for RGD837 are not available. Thin panels below 1.2 mm wall thickness are susceptible to warp after support removal if drying is conducted above 40°C; the 45–50°C HDT boundary means accelerated moisture removal must use a lower temperature and longer dwell. RGD837 is an insulator; electrostatic discharge control cannot rely on bulk resistivity unless a conductive coating is applied and verified on the actual printed geometry, with surface resistance checked under ASTM D257.
Exposed cabin components such as HVAC vent bezels, seat switch carriers, and steering-column trim are evaluated in early ergonomic and tactile studies using RGD837 when a white substrate is required under clearcoat and the test protocol does not include upper instrument panel solar soak temperatures. Printed grain depth for leather-like textures is resolved at 30 μm layer thickness when the embossment depth exceeds 0.1 mm; thinner layers reduce stepping but increase print time and can create a surface that requires more aggressive support-cleaning pressure. Support removal on texture surfaces should use a WaterJet station initially, followed by ultrasonic cleaning only if the texture depth can be measured before and after processing to prevent erosion of fine grain. Paint and coating adhesion is influenced by residual support film; flame plasma or atmospheric corona treatment may be used according to the coating supplier's written process, but solvent-borne adhesion promoters containing ketones or toluene can etch the surface and alter texture readings. Solar load testing at 80°C on upper instrument panel surfaces exceeds the published heat deflection temperature of 45–50°C at 0.45 MPa under ASTM D648-18, so RGD837 is confined to B-side trim, cold-side brackets, and short-duration cockpit mock-ups rather than underhood or brake-adjacent hardware. When clips are integrated into the printed trim, clip back-angle and retention force should be verified under thermal cycling between −20°C and 45°C, because the material can show brittle failure at the high strain rate of rapid clip insertion below 0°C.
RGD837 master patterns are used for room-temperature vulcanisation silicone tools when the pattern surface must remain dimensionally stable and optically contrasting under metrology lighting. After support removal, the pattern is wet-sanded with 600-grit paper in a circular motion, but sanding on thin walls below 1.0 mm can locally raise temperature and damage edge geometry; hand sanding should be substituted with a low-speed orbital tool at less than 500 min−1. Draft angle on vertical walls should be 1.5–2.0° to reduce silicone tearing during demoulding. Addition-cure RTV silicones exhibit linear shrinkage typically in the 0.1–0.3% band depending on Shore A hardness; the master pattern must be scaled by the measured shrinkage factor of the specific silicone lot, not by a generic value. Sharp corners with a radius below 0.2 mm can concentrate stress and chip during silicone demoulding because RGD837 hardness is in the Shore D 83–86 range under ASTM D2240-15 and the material does not yield locally. If the silicone tool requires post-curing at 70°C, the RGD837 master should be removed before the oven cycle; otherwise the tool temperature can exceed RGD837 HDT and the master can distort.
Assembly fixture bodies for printed circuit board nests and laser welding jigs are fabricated in RGD837 only when the fixture is a replaceable insert mounted on a milled aluminium or steel subplate, not as a monolithic structural element. Published creep data for this specific formulation are limited; any continuous tensile load above 15 MPa should be treated as a validation gap and assessed under ASTM D2990-17 before release to production. Datum features are qualified under ISO 10360-2 using a coordinate measuring machine with a stylus contact force of 0.01 N or lower; RGD837 surfaces can be indented by repeated scanning probes if the contact force exceeds 0.05 N, and the resulting surface mark must be measured with a profilometer before and after 1,000 cycles. For laser welding nests, the white opaque surface minimises beam reflection and provides visual contrast for alignment cameras, but direct contact with a laser heat source is not acceptable; the nest should be shielded by a metallic aperture. The fixture body should be machined only with tools intended for rigid thermosets, and cutting speeds should be reduced compared with ABS because the material is more brittle at sharp edges; published machining speeds for RGD837 are limited, so starting parameters should be validated on a sacrificial section.
Appliance control panels and small appliance housings are prototyped in RGD837 for evaluation under retail lighting because the opaque white surface reproduces painted ABS geometry without the need for post-print priming. Before critical dimensional checks, parts are conditioned at 23°C and 50% RH for 48 h per ISO 291. Water absorption under ASTM D570 after 24 h can alter small holes and snap features; therefore, parts measured immediately after support removal may show a different fit than parts measured after atmospheric equilibration. Face surfaces printed parallel to the X-Y plane show the highest gloss consistency, while Z-facing surfaces retain visible layer stepping unless polished. RGD837 is not a load-bearing structural polymer; appliance mock-ups are used for form, fit, and visual validation, not for load-bearing hinge or door stress tests.
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Stratasys Vero™ VERO PUREWHITE RGD837 is a rigid opaque white PolyJet photopolymer supplied as a sealed liquid cartridge for material jetting 3D printers. The material belongs to the Vero family of acrylate-based ultraviolet-curable resins and produces a non-elastomeric network with Shore D hardness typically specified from 83 to 86 under ASTM D2240-15. The product is specified for bright neutral-white appearance models, dimensional prototypes, anatomical replicas, and medical device mock-ups in which an opaque homogeneous white substrate is required. The manufacturer's published range for the rigid Vero class includes tensile strength of 50–65 MPa under ASTM D638-14, tensile elongation at break of 10–25%, flexural strength of 75–110 MPa under ASTM D790-17, and flexural modulus of 2,200–3,200 MPa. These values provide a first-order comparison with unfilled engineering thermoplastics, but the printed part is not isotropic; build direction, layer thickness, and support geometry influence the observed mechanical response. The resin is jetted through piezoelectric printheads, levelled by a roller, and cured by onboard UV lamps after each slice.
On supported PolyJet systems, the cartridge is identified automatically by the printer firmware, and the jetting parameters are locked to the stored material profile. Layer thickness is selected by the job resolution mode; high-quality settings can deposit layers on the order of 14 µm, while high-speed settings use thicker slices on the order of 27 µm depending on the platform. The thinner layer setting increases Z-resolution and surface smoothness but increases build time. Because the resin is opaque white, UV cure is limited to the near-surface region of each deposited layer; complete layer-by-layer solidification is achieved by iterative jetting passes rather than by deep through-layer light penetration. The printer firmware controls jetting temperature, UV lamp output, and roller action. The material should be allowed to reach printer bay temperature before loading; cold resin increases viscosity and can produce missing or misdirected jets. The equipment manual typically specifies a conditioning interval before the first build; the exact interval varies by printer and cartridge mass. No thermal post-cure is required for the development of the room-temperature mechanical properties, although property stabilization after printing may occur over a short post-build interval.
The white pigment is suspended in the resin, so cartridge storage should maintain the manufacturer's temperature range. Settling of pigment during prolonged idle periods can be redispersed by controlled mixing in some production workflows, but operators should not attempt unvalidated mixing methods because air entrainment and viscosity changes can affect jetting. The printer's automatic purge and wipe cycles remove nozzle-plate residue; missing-jet tests should be read according to the platform's service manual before committing to a full build.
Mechanical evaluation of cured RGD837 follows rigid photopolymer protocols. Standard test conditions are 23 ± 2 °C and 50 ± 5% RH unless otherwise specified. The table below lists the specification range commonly cited for the rigid Vero material class; lot-specific certificates may report values within these bounds rather than a single fixed number. The datasheet values are generated from specimens printed in the XY plane; Z-axis properties are not controlled by the standard range.
| Property | Specification Range | Test Method |
|---|---|---|
| Tensile strength | 50–65 MPa | ASTM D638-14 |
| Tensile elongation at break | 10–25% | ASTM D638-14 |
| Modulus of elasticity | 2,000–3,000 MPa | ASTM D638-14 |
| Flexural strength | 75–110 MPa | ASTM D790-17 |
| Flexural modulus | 2,200–3,200 MPa | ASTM D790-17 |
| Heat deflection temperature at 0.45 MPa | 45–50 °C | ASTM D648-18 |
| Izod notched impact | 20–30 J/m | ASTM D256-10 |
| Shore D hardness | 83–86 | ASTM D2240-15 |
| Water absorption 24 h | 1.1–1.5% | ASTM D570-98 |
Because PolyJet builds are laminated, the Z-axis tensile elongation and impact resistance are generally lower than XY-plane values. The layer interface is the limiting plane for tensile and flexural loads, so datasheet values should not be used for off-axis load transfer without destructive testing of a representative coupon. Fatigue, creep, and dynamic mechanical data are not provided in the general datasheet; requests for orientation-specific datasets should be directed to the manufacturer, and published data for this specific configuration is limited. For design verification, printed coupons should be tested under ASTM D638-14 or ISO 527-2:2012 in the intended build orientation.
The heat deflection temperature interval of 45–50 °C at 0.45 MPa means that continuous load-bearing service above 50 °C is outside the material's thermal envelope. Short-term non-loaded exposure above this temperature may not immediately distort the part, but dimensional inspection before and after thermal exposure is required for any application involving elevated temperatures.
Dimensional accuracy is influenced by the selected layer mode, part size, and support strategy. PolyJet processes do not require tooling compensation factors in the same manner as injection moulding, but the printed part can exhibit slight dimensional drift if moved immediately from a warm build chamber to a cold metrology lab. For critical features, measurement should be performed after the part has stabilized at 23 ± 2 °C. Shrinkage values for RGD837 are not stated as a single number in the general datasheet; therefore, process capability studies should be conducted on the target printer and layer mode before aerospace or medical dimensional qualification.
After printing, the support material is removed by mechanical action or waterjet. Thin sections below 1 mm and unsupported ribs are susceptible to fracture during aggressive waterjet cleaning if the pressure is not reduced. Residue in blind holes with diameters below 3 mm may require manual picking because water-jet stagnation cannot fully clear high-aspect-ratio cavities. The white surface accepts sanding, filling, priming, and painting; adhesion of subsequent coatings is primarily mechanical. Paint adhesion should be verified by cross-cut testing under ISO 2409:2020 or equivalent, because the photopolymer surface is non-porous. Surface roughness is process-dependent; high-quality mode with thinner layers produces a smoother surface than high-speed mode, but the cured resin does not flow or level after initial UV gelation. Workpieces are often oriented with critical surfaces away from support because support-facing surfaces retain a rougher texture after cleaning.
Contrast and color uniformity are primary reasons for selecting RGD837. The material is opaque enough to prevent transmitted-light edge reading, which reduces dimensional drafting ambiguity in optical measurement systems. However, no ISO whiteness or yellowness index is published in the standard datasheet; batch-specific appearance should be verified if color-critical assemblies require matched white housings. Freshly printed parts can have slight gloss variation depending on build mode; post-priming eliminates these differences.
Within the Vero family, RGD837 is specified by its pure white pigmentation rather than by a meaningful increase in bulk mechanical strength over RGD835 VeroWhitePlus. The mechanical property window for RGD837 overlaps heavily with RGD835; the selection criterion is color consistency and documentation path for white appearance parts. Unlike RGD810 VeroClear, RGD837 is opaque and cannot be used for transmitted light inspection, flow-channel visualization, or photoelastic stress analysis. Conversely, the white pigment provides higher visual contrast for photographed inspection and marked dimension reports than transparent or dark grades. The resin is not a digital composite; it is jetted as a single material and does not require on-head blending of separate rigid and elastomeric components as do Digital ABS or Agilus30 formulations.
RGD837 is used for visual and dimensional evaluation of housings, connectors, surgical guides, and handheld device shells where the priority is form, fit, and finish rather than sustained load-bearing. The heat deflection temperature range of 45–50 °C at 0.45 MPa limits continuous service to temperatures below approximately 50 °C for loaded parts; the polymer network will soften under elevated heat. Machined white acetal and injection-moulded ABS exhibit higher HDT and impact resistance, so substitution is not appropriate for snap-fit arms, living hinges, or thermal sterilization cycles exceeding the stated HDT. Autoclave exposure at 121 °C is above the thermal transition of the material and causes distortion. For surgical planning models that do not enter the sterile field, the limitation is less restrictive; cleaning with detergent and room-temperature water is typically sufficient, but the manufacturer's current application notes should be consulted.
The material can be machined after printing for bore accuracy and thread inserts, but the cured network is brittle relative to thermoplastics, and drilling should use high-speed carbide tooling with light feed force. Thread-forming screws are not recommended; heat-stake inserts or bonded inserts are preferred. These limits arise from the low elongation at break and notch sensitivity of the acrylate network.
Production-scale PolyJet operations with pigmented white resins frequently report increased printhead maintenance frequency relative to clear resins because suspended pigment can settle in idle nozzles. Automated purge and wipe cycles mitigate missing-jet defects, but batch-to-batch variation in pigment dispersion can alter first-layer color uniformity. Workpieces are often printed with the reference surface oriented away from support to preserve surface finish; support-facing surfaces remain rougher and may require additional finishing before inspection. Environmental control around the printer bay is specified by the equipment manual; uncontrolled humidity above 60% RH can affect support solubility and increase moisture pickup in cured parts during long-term storage. For tight-tolerance assemblies, stress relief can be accelerated by a short ambient rest period before dimensional inspection, but this is not a post-cure requirement; if quick-turn inspection is required, the metrology setup should account for any residual thermal effects from the build chamber.
The liquid resin is a chemical preparation under REACH Regulation (EC) No 1907/2006; the Safety Data Sheet should be maintained at the workstation. If cured parts are intended for medical device prototyping, current Stratasys documentation should be checked for ISO 10993-5:2009 cytotoxicity and ISO 10993-10:2010 skin sensitization and irritation status for RGD837. Biocompatibility is formulation-specific; testing results for other Vero grades cannot be transferred without justification. For restricted substance documentation, the manufacturer may provide EU RoHS Directive 2011/65/EU declarations on a lot-specific basis. Cured parts should not be combined with amine-based adhesives or coatings without compatibility testing because residual acrylate species can react under certain aggressive systems; this is a known limitation of UV-cured acrylate networks. Published data for this specific configuration is limited.
| Documentation Domain | Reference | Verification Requirement |
|---|---|---|
| Safety Data Sheet | REACH (EC) No 1907/2006 | Maintain at station |
| Cytotoxicity | ISO 10993-5:2009 | Manufacturer certificate required for medical use |
| Irritation and skin sensitization | ISO 10993-10:2010 | Manufacturer certificate required for medical use |
| Restricted substances | EU RoHS Directive 2011/65/EU | Lot-specific declaration required |
| Tensile and flexural testing | ASTM D638-14, ASTM D790-17 | Datasheet ranges |
| Heat deflection | ASTM D648-18 | Datasheet ranges |
Storage should follow the cartridge label. The resin should not be frozen or exposed to direct sunlight; uncured material should be handled as an industrial chemical and not disposed of in general waste. Cured parts require no special ventilation under ordinary indoor handling, but grinding or sanding should be performed with particulate extraction. The user should review the current Safety Data Sheet before bulk processing and should not mix expired resin with fresh stock because viscosity and photoinitiator depletion can shift cure response and final hardness.
Chemical compatibility screening should follow ISO 175:2010 for immersion service. PolyJet photopolymers are susceptible to polar solvents, ketones, and chlorinated hydrocarbons; prolonged immersion in such media causes swelling and loss of dimensional accuracy. Substitute service conditions should be tested on printed coupons at the expected temperature and duration.
