Direct answer: 3D Systems' current material finder assigns 18 named resins to Figure 4 Production. They cover rigid and tough plastics, clear parts, flexible and rubber-like parts, high-temperature and flame-retardant jobs, a medical-capable amber material, and sacrificial silicone tooling. The June 2025 Figure 4 guide also marks Rigid Composite White and JCAST-GRN 20 for Production, but those two are absent from the current exact-machine finder. Treat them as confirmation-required, not as silent additions to the standard list.
Figure 4 Production is a customized, integrated manufacturing solution rather than an open-material desktop printer. Compatibility therefore means more than whether liquid resin cures under the projector. It connects an exact resin SKU and lot to a released 3D Sprint profile, the purchased cell configuration, resin supply and handling, washing, drying, UV post-curing, traceability, inspection and the customer's finished-part qualification. The manufacturer's option to collaborate on a unique material is a formal engineering program, not permission to pour in arbitrary third-party resin.
Figure 4 Production material compatibility at a glance
| Material lane | Current verdict | Decision boundary |
|---|---|---|
| PRO-BLK 10; Rigid Gray; Rigid White | Current exact-machine finder | Candidates for stiff housings, covers, fixtures and production parts; validate real load, wall, fastener, fluid, weather and cure conditions. |
| Tough 60C White; Tough 65C Black; Tough Clear; TOUGH-BLK 20; TOUGH-GRY 10; TOUGH-GRY 15 | Current exact-machine finder | Choose from the actual impact, elongation, clarity, temperature and environmental requirement, not the word "tough" alone. |
| FLEX-BLK 20; RUBBER-65A BLK; RUBBER-BLK 10 | Current exact-machine finder | Flexible and rubber-like labels do not prove a seal, hinge, bellows, grip or repeated-compression duty cycle. |
| HI TEMP 300-AMB; High Temp 150C FR Black; Tough 75C FR Black; Tough FR V0 Black | Current exact-machine finder | Thermal and flame data have method, load, thickness and conditioning scope; they do not certify an arbitrary finished assembly. |
| MED-AMB 10 | Current exact-machine finder | A medical-capable material route; the exact device, contact, cleaning, sterilization and regulatory pathway still need qualification. |
| EGGSHELL-AMB 10 | Current exact-machine finder | A deliberately brittle sacrificial shell for silicone tooling, not a general end-use resin. |
| Rigid Composite White; JCAST-GRN 20 | Confirmation required | The June 2025 guide marks both for Production, but the live exact-machine finder omits them. Obtain current written profile, package, workflow and regional confirmation. |
| Custom 3D Systems-developed formulation | Conditional engineering program | Scope formulation, machine release, profile, supply, process validation, safety data, support and acceptance criteria in writing. |
| Other Figure 4, third-party 405 nm, mixed, expired or unknown resin | Unsupported or poor fit by default | Portfolio membership or apparent cure does not establish exposure, accuracy, tray life, properties, safety, support or repeatability. |
Why the current finder and the June 2025 guide do not quite agree
The current Figure 4 Production product page links to a material finder filtered for this exact system. That live Figure 4 Production finder currently returns 18 materials. It is the cleanest public starting point for a standard-material shortlist because it is live and machine-specific.
The manufacturer's June 2025 Figure 4 materials guide has a compatibility appendix that marks 20 materials with "P" for Production. The two additions are Rigid Composite White and JCAST-GRN 20. The guide remains useful current manufacturer evidence, but the mismatch is itself an operating fact. Before a purchase order or production plan depends on either resin, ask 3D Systems to identify the current Figure 4 Production profile, package, cell configuration, washing and cure process, regional release and support status in writing.
This approach avoids two bad shortcuts. It does not erase two manufacturer-listed possibilities simply because a web facet is narrower, and it does not turn a PDF checkmark into unconditional current availability. Prices, package formats, stock and regional releases can change. The exact commercial and technical release should travel with the quote.
Rigid, tough and clear materials solve different failure modes
PRO-BLK 10, Rigid Gray and Rigid White are the current rigid group. They can be candidates for housings, covers, jigs, fixtures and end-use components when their actual data and process match the job. "Production-grade" is manufacturer positioning, not proof that a thin wall, screw boss, snap, thread, clip or chemically exposed part will survive. Define sustained and peak load, impact direction, notches, fastener preload, temperature, humidity, UV, fluid contact and expected life.
The six tough materials widen the choice, but they are not interchangeable colors. Tough 60C White and Tough 65C Black signal different thermal/property packages. Tough Clear adds an optical decision. TOUGH-BLK 20 and the two TOUGH-GRY grades have distinct property and application records. Preserve specimen orientation, conditioning and test-method scope when comparing values, then test representative printed geometry under the real duty cycle.
For a clear part, define transmission, haze, surface finish, wall thickness, polishing or coating, UV aging and chemical cleaning. A clear coupon immediately after cure does not prove a durable light guide, window or inspection feature. If Rigid Composite White is important, add filled-resin handling, settling, mixing, tray inspection, cleaning and wear questions to the written confirmation gate.
Flexible and rubber-like require a geometry-level test
FLEX-BLK 20, RUBBER-65A BLK and RUBBER-BLK 10 occupy different stiffness, tear and rebound lanes. A part bending by hand is not enough evidence for a gasket, bellows, grip, strain relief, bumper or living hinge. Define hardness, minimum wall, bend radius, tear path, compression set, pressure, fluid, temperature, outdoor exposure and cycle count.
Seals need mating-surface finish, squeeze, pressure, dwell and leakage criteria. Flexures need a bend radius and cycle requirement. Bellows need trapped-resin drainage and cure access. Grips and wearables need skin-contact and cleaning decisions. The resin name narrows the candidate set; the released print-and-cure process plus representative part testing closes the decision.
High-temperature and flame labels stay inside their test scope
HI TEMP 300-AMB, High Temp 150C FR Black, Tough 75C FR Black and Tough FR V0 Black answer different engineering questions. Heat-deflection temperature is measured under a stated load and method. It is not automatically a continuous-use rating, electrical RTI, sterilization limit, mold-life guarantee or safe loaded-fixture temperature. Define peak and continuous temperature, load at temperature, dwell, cycles, contact chemistry and allowable dimensional change.
Flame evidence also depends on the exact resin, thickness, conditioning and classification. A material result does not certify an arbitrary enclosure, connector, vehicle part or complete electrical product. Preserve resin and lot traceability, use the released profile and cure, and route the finished design through the applicable evaluation. Washing, drying and post-curing belong in this evidence chain because residual liquid, trapped solvent and cure shadows can change the usable result.
Medical, casting and custom materials are process programs
MED-AMB 10 is in the current exact finder, but "medical-capable" is narrower than "every printed device is biocompatible." Contact type and duration, geometry, cleaning, cure, residue, sterilization, packaging, traceability and the customer's regulatory pathway remain part of the decision. The printer and resin do not approve a device by themselves.
EGGSHELL-AMB 10 is a sacrificial shell for silicone casting. Its brittleness is intentional, so success is judged downstream: drainage, cleaning, shell removal, silicone chemistry, inhibition risk, mold fill, venting, surface transfer and final silicone-part inspection. JCAST-GRN 20 is a different investment-casting path. Because it appears in the guide but not the live Production finder, confirm the current release and then qualify the investment, burnout, furnace ventilation, alloy, sprue and foundry process.
The product page says Figure 4 Production customers may collaborate with 3D Systems engineers on a unique material. That is potentially valuable when a recurring production requirement cannot be met by the standard list. It is not an open-material promise. A credible program defines formulation ownership, machine and profile release, package and lot controls, safety data, change control, service support, washing and cure, property methods, acceptance criteria, part qualification and what happens if the formulation changes.
The material choice must fit the purchased production cell
Figure 4 Production is sold as a customized, automated integrated solution. That changes the buyer's first question from "can one sample cure?" to "can this exact cell repeat the approved process?" Map each recurring resin to its printer modules, supply format, tray or membrane controls, wash chemistry, dry endpoint, cure unit and cycle, finishing and inspection. Identify which tools and post-processing equipment may be shared under manufacturer instructions and where segregation is required.
Keep a traveler for every released job: system and module, software and profile version, resin SKU and lot, package and handling route, tray state, orientation, supports, layer setting, print record, wash chemistry and time, dry state, cure unit and cycle, finishing, inspection and environmental conditioning. A dashboard, automation layer or custom cell does not replace that record.
The manufacturer publishes speed and annual-output claims for its solution. Treat them as scoped manufacturer claims, not a GoodPrints guarantee. Actual output depends on geometry, layer settings, nesting, resin, supports, failures, changeovers, washing, curing, labor, inspection, maintenance and acceptance yield. Ask for a demonstrated workflow using representative parts and the intended material mix before turning a headline into capacity, staffing, ROI or payback assumptions.
Resin, solvent, UV and facility safety boundaries
Uncured photopolymer, contaminated tools and wash liquid require chemical controls. Follow the current 3D Systems instructions and exact resin safety data sheet for gloves, eye and skin protection, ventilation, storage, incompatibilities, spill response and disposal. Keep food and drink out of the work area, cover resin when it is not being handled, and do not send uncured residue or contaminated wash liquid to a sink.
Washing can introduce flammable or otherwise hazardous solvents. Use only approved chemistry and listed equipment, control ignition sources, and follow local fire-code and waste rules. UV curing adds optical, electrical and heat hazards; keep shielding and interlocks intact. An integrated production cell also needs manufacturer-specified electrical service, ventilation, fire controls, access, guarding, housekeeping and emergency planning.
The NIOSH safe-3D-printing guidance supports source control, ventilation and exposure reduction as a hierarchy. It does not replace the resin SDS, equipment manual, industrial-hygiene review, fire authority, electrical requirements or environmental rules. GoodPrints is not the final safety authority for this installation.
Buyer and owner decision
- Choose Figure 4 Production when recurring demand, a qualified material mix and the need for a customized integrated workflow justify an engineered cell rather than a standalone printer.
- Use the 18 live-finder materials as the standard shortlist, then lock the exact SKU, package, profile, process and regional release in the proposal.
- Pause for written confirmation when the job depends on Rigid Composite White, JCAST-GRN 20, a specific supply format, or any other difference between the guide and current finder.
- Treat a custom material as a development program with written release, safety, support, process and acceptance terms. Do not equate it with third-party resin freedom.
- Choose a different system when a scalable semi-automated cell is the better operating model; compare the Figure 4 Modular material guide. For lower-volume workflows, review the Figure 4 135 or Formlabs Form 4L material routers.
- Choose another process for filament, powder, pellet, wire, paste or metal. The EXT 220 MED material guide owns a medical high-temperature filament decision.
- Outsource first when demand is intermittent or the team does not want to own chemical handling, wash/cure, ventilation, waste, traceability and qualification.
For a defined part, use the material-selection checklist, review the custom-printing service FAQ, request a GoodPrints quote, or use the JC Print Farm route when an external production path fits better than owning this cell.
Bottom line
The defensible current starting set is the 18 materials in the live Figure 4 Production finder. Rigid Composite White and JCAST-GRN 20 remain real manufacturer-listed possibilities, but the live-finder mismatch makes them written-confirmation decisions. A custom formulation is possible only as an engineered program. In every lane, compatibility includes the purchased cell, exact resin and lot, released profile, supply path, washing, drying, cure, facility controls, traceability and finished-part evidence.
Official sources checked
- 3D Systems Figure 4 Production product page for the current integrated-system and custom-material-program context.
- Figure 4 Production material-finder facet for the current 18 exact-machine records.
- June 2025 Figure 4 materials guide for the compatibility appendix and material-family boundaries.
- 3D Systems materials portfolio for the broader manufacturer portfolio, kept distinct from exact-machine release.
- NIOSH: Approaches to Safe 3D Printing for the independent source-control and exposure-reduction boundary.