What Materials Can the 3D Systems Figure 4 Modular Print?

Direct answer: 3D Systems' current material finder assigns 19 named resins to Figure 4 Modular. The list spans rigid and tough plastics, clear, flexible and rubber-like choices, high-temperature and flame-retardant formulations, one medical-capable amber resin, and a sacrificial silicone-tooling material. That does not make every Figure 4 or 405 nm resin interchangeable. The useful compatibility unit is the exact resin SKU and lot plus its released 3D Sprint profile, assigned print engine, material-delivery format, tray state, wash, dry and post-cure process.

Figure 4 Modular is a production cell, not just a larger desktop resin printer. The current product page describes a base system with one print engine and central controller that can expand to more engines, automated job management, automated material delivery and centralized post-processing. Multiple engines may run different jobs and materials, but a dashboard queue does not erase resin changeover, cross-contamination, replenishment, cure, traceability or facility controls. Buy it when the recurring material mix and finishing workflow justify a controlled cell; do not buy it merely because the portfolio contains a resin with an attractive headline property.

Figure 4 Modular material compatibility at a glance

The current exact-platform list controls the first decision

The current Figure 4 Modular product page points buyers to a material finder filtered for this machine. That exact Figure 4 Modular material-finder view currently returns 19 records. It is a stronger compatibility starting point than assuming that every item in the company-wide 3D Systems materials portfolio runs on every Figure 4 configuration.

The manufacturer's June 2025 Figure 4 materials buyer's guide is valuable for property and application context. Its compatibility appendix, however, maps Standalone, Production, 135 and Jewelry rather than naming Modular as a separate column. That is why this guide uses the live exact-platform finder for inclusion and the PDF for material-family context. Where those records do not provide the exact current profile, supply format or regional availability, the operating team should obtain the release in writing.

A procurement packet should identify the exact trade name, SKU, package, lot controls, current software and build style, approved wash chemistry, drying endpoint and post-cure cycle. “Figure 4 compatible” without those fields is too broad for a production cell. A material may also be available in a container that does not support the desired automated delivery path, so confirm the intended engine and replenishment format rather than assuming every listed resin is automation-ready.

Rigid and tough choices start with the failure mode

PRO-BLK 10, Rigid White, Rigid Gray and Rigid Composite White occupy the stiff-part side of the list. They are candidates for housings, covers, fixtures and production components when their actual datasheet evidence matches the job. “Rigid” does not answer impact, thread stripping, snap fatigue, screw-boss cracking, chemical exposure, outdoor aging or dimensional drift. Rigid Composite White especially deserves a settling, mixing, tray-inspection and cleaning plan because filled formulations can create operating issues that an unfilled resin does not.

The six tough routes are not duplicates. Tough 60C White, Tough 65C Black and Tough Clear offer different appearance and property packages. TOUGH-BLK 20 and the two TOUGH-GRY materials have their own prototyping and production positions. Select by the real duty cycle: peak and sustained load, impact direction, temperature, humidity, UV, fluid contact, wall thickness, notch geometry, assembly stress and acceptable aging. Preserve specimen orientation, conditioning and test-method scope when reading a manufacturer value.

Clear is a functional requirement, not just a color choice. If the job needs a light guide, window or fluid-visualization part, define transmission, haze, surface finish, thickness, UV aging and the polishing or coating workflow. A freshly cured clear coupon does not prove long-term optical performance in a finished geometry.

Flexible and rubber-like are three separate operating lanes

FLEX-BLK 20 is positioned as a durable flexible plastic, while RUBBER-65A BLK and RUBBER-BLK 10 occupy rubber-like routes with different hardness and tear behavior. Do not substitute one because all three bend by hand. A seal, bumper, grip, strain relief, bellows or repeated-flex feature depends on hardness, tear path, compression set, rebound, minimum wall, trapped resin, cure shadowing, temperature, chemical contact and cycle count.

For a seal, define mating-surface finish, squeeze, pressure, fluid, dwell, temperature and inspection method. For a living hinge or flexure, define bend radius and cycles. For a grip or bumper, define skin contact, cleaning chemistry and aging. The material name narrows the candidates; representative printed geometry and the responsible application test make the decision.

A smaller standalone workflow may be a better fit when only occasional resin jobs are expected. Compare the exact small-format Figure 4 135 material router, the Formlabs Form 4L material guide, and the HeyGears Reflex 2 material guide. Those systems own different material releases, supply paths and finishing workflows; none of their resins transfer automatically to Figure 4 Modular.

High-temperature and flame-rated names need context

HI TEMP 300-AMB, High Temp 150C FR Black, Tough 75C FR Black and Tough FR V0 Black are all in the exact-platform list, but they answer different engineering questions. Heat-deflection temperature is measured under a stated load and method. It is not automatically a continuous-use temperature, 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-test language is also bounded. The exact resin, test thickness, conditioning and classification matter. A material result does not make an arbitrary printed enclosure, connector, vehicle part or complete electrical product compliant. Preserve resin and lot traceability, use the released profile and cure, and route the finished design through the applicable evaluation. If the job is governed by stiffness under heat rather than flammability, compare the relevant test data instead of choosing the product name with the largest temperature number.

Washing, drying and cure are not afterthoughts for these materials. Residual liquid, solvent trapped in cavities, incomplete dry time and cure shadowing can change dimensions, surfaces and usable properties. The process record should travel with the part when thermal or flame evidence matters.

MED-AMB 10 and EGGSHELL-AMB 10 solve narrow workflows

MED-AMB 10 is in the live exact-platform list and the manufacturer describes it as a rigid translucent material that can be sterilized and tested at high temperature. The buyer's guide uses “biocompatible capable,” which is deliberately narrower than “every printed device is biocompatible.” Contact type and duration, geometry, cleaning, cure, residues, sterilization, packaging, traceability and the customer's regulatory pathway remain part of the decision. Do not transfer a coupon result to a device without the required validation.

EGGSHELL-AMB 10 is an indirect-production material engineered as a sacrificial shell for silicone casting. Its brittleness is intentional. Compatibility therefore includes shell drainage, cleaning, removal, silicone chemistry, inhibition risk, mold fill, venting, surface transfer and the final silicone-part inspection. A printed shell is not proof of final mold dimensions or service life.

MED-WHT 10, JCAST-GRN 20 and JEWEL MASTER GRY appear elsewhere in the broader Figure 4 guide, but they are not in the current exact Modular finder results. That is a confirmation gate, not an invitation to infer support. Ask 3D Systems for the exact Modular release, profile, supply package, cure and regional status. If jewelry casting is the recurring job, compare a machine and workflow explicitly released for that material family.

Material changes are a cell-planning decision

The product page says individual printer modules can run different materials and jobs. The clean production interpretation is to assign and qualify engines around a recurring material mix. It does not mean an engine can switch resins without controlled draining, cleaning, inspection, refill, profile verification and a restart qualification. Dedication can reduce cross-contamination and changeover burden; flexibility can improve utilization but increases operating discipline.

Before buying, map expected demand by material family, package size, engine, tray, wash chemistry, dry step, cure cycle, downstream finishing and inspection. Identify which resins may share equipment under manufacturer instructions and which need separate tools or controlled cleaning. Include storage, shelf life, lot rotation, spill response, waste and downtime for changeover. The manufacturer advertises scalable throughput, but actual cell output depends on geometry, layer settings, nesting, resin, support, failures, changeovers, washing, curing, labor and inspection. Do not turn a headline capacity into a guaranteed quote.

Keep a traveler for every released job: machine and engine, software and profile version, resin SKU and lot, package and replenishment route, tray or membrane state, orientation, supports, layer setting, print record, wash chemistry and time, dry state, cure unit and cycle, finishing, inspection and environmental conditioning. That record is what makes a material decision repeatable across engines and time.

Resin, solvent, UV and facility safety boundaries

Uncured photopolymer, contaminated tools and wash liquid require chemical controls. Follow the current 3D Systems operating instructions and the 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 the approved chemistry and listed equipment, control ignition sources, bond and store containers as required, and follow local fire-code and waste rules. UV post-curing equipment adds optical, electrical and heat hazards; keep interlocks and shielding intact and follow the manufacturer procedure. Centralized post-processing concentrates these tasks, so its ventilation, electrical service, fire controls, access, housekeeping and emergency plan belong in the purchasing scope.

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 local environmental rules. GoodPrints is not the final safety authority for the installation.

Never handle uncured resin as though the cured part's marketing category applies to the liquid. Gloves need compatibility with the exact resin and wash chemistry, and they need a replacement schedule. Cure and wash waste, absorbents, filters, supports and failed parts may require controlled disposal. For medical, food-contact, electrical, flame-rated, pressure, lifting, vehicle-control or other regulated parts, obtain responsible application and compliance approval.

Buyer and owner decision

• Choose Figure 4 Modular when recurring production uses one or more of the 19 current exact-platform resins and the team benefits from coordinated engines, material delivery and centralized finishing.
• Assign engines around the real material mix when reducing cross-contamination and changeover is more valuable than maximum scheduling flexibility.
• Pause for written confirmation when the job depends on a Figure 4 resin absent from the exact Modular finder, a specific automated-delivery package, a region-specific release or a regulated claim.
• Choose a different platform for filament, powder, pellet, wire, paste, metal or an unqualified third-party photopolymer. 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 resin handling, changeover, washing, curing, ventilation, chemical records, waste and part 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 clean current Figure 4 Modular starting set is the 19 materials in 3D Systems' exact platform facet. Use that list to shortlist a resin, then lock the exact SKU and lot, released 3D Sprint profile, engine and material-delivery assignment, tray state, changeover, wash, dry and post-cure process, chemical and facility controls, traceability and finished-part evidence. Broader Figure 4 portfolio membership and 405 nm cure language are not substitutes for an exact machine release.

Official sources checked

• 3D Systems Figure 4 Modular product page for the current exact-system architecture, multi-engine, material-delivery and centralized post-processing context.
• Figure 4 Modular material-finder facet for the current 19 exact-platform material records.
• June 2025 Figure 4 materials buyer's guide for current material-family, application, testing and property context.
• 3D Systems materials portfolio for the broader manufacturer portfolio, kept distinct from exact-platform support.
• NIOSH: Approaches to Safe 3D Printing for source-control and exposure-reduction boundaries.