What Materials Can the 3D Systems SLS 380 Print?

Direct answer: the current 3D Systems material finder tags 11 exact powders for the SLS 380: DuraForm PA11 Black, PA11 Natural, PA12 Black, PAx Black, PAx Natural, TPU 90A, FR-106, PA CF, ProX PA, ProX HST Composite, and ProX GF. That is a meaningful manufacturer compatibility record, not permission to treat the powders as interchangeable. Exact grade, fresh-to-recycled mix, powder history, material-handling configuration, changeover, build parameters, post-processing, safety data, and finished-part requirements still decide whether a material is operationally qualified.

The exact current catalog labels are DuraForm PA11 Black; DuraForm PA12 Black; DuraForm TPU 90A 3D Print Material; DuraForm FR-106 3D Print Material; DuraForm PA CF (SLS); DuraForm PA11 Natural (SLS); DuraForm PAx Black 3D Print Material; DuraForm PAx Natural SLS 3D Print Material; DuraForm ProX PA (SLS); DuraForm ProX HST Composite (SLS); and DuraForm ProX GF (SLS). Preserve those full identities in purchasing and production records.

The SLS 380 is an industrial selective-laser-sintering cell, not a general-purpose heater for any powder. Its current product page describes production-grade nylon 11, nylon 12, filled nylon, flame-retardant-capable and flexible routes. The exact filtered material catalog supplies the product names. The buyer decision is whether one of those documented systems and the complete powder workflow match recurring work well enough to justify the cell.

SLS 380 material compatibility at a glance

The current catalog contains 11 exact powders

The 3D Systems material finder filtered for SLS 380 returned 11 records during this execution-time check. It identified all 11 with selective laser sintering technology and SLS 380 printer compatibility. This filtered result is more reliable than copying a generic nylon family list, but it is still a live catalog that can change. Recheck it and the exact product record when selecting or purchasing material.

Keep the complete product name in the job traveler. PA11 Black and PA11 Natural are separate commercial products. PAx Black and PAx Natural are separate products. ProX PA is not a generic synonym for every PA12. DuraForm PA CF, ProX HST Composite and ProX GF use different filler systems and should not share an assumed process merely because all are filled nylons.

The current SLS 380 product page provides the broader boundaries: nylon 11 for impact and fatigue resistance; nylon 12 for strong, medical-grade-capable or flame-retardant-capable routes; filled nylons for additional engineering properties; and a flexible route. Those are manufacturer descriptions. They do not independently prove GoodPrints-tested strength, fatigue life, biocompatibility, flammability, surface, tolerance or production yield.

PA11, PA12 and PAx answer different part decisions

PA11 is the natural starting conversation when repeated flex, impact or a living-hinge-like behavior matters, because 3D Systems positions its PA11 family around impact and fatigue resistance. That positioning is not a finished-part guarantee. Hinge radius, wall, orientation, thermal history, powder refresh, notch geometry and the real number of cycles all matter. Qualify the production geometry rather than transferring a material-page adjective to the assembly.

PA12 routes are often considered for rigid housings, fixtures and production parts. PA12 Black and ProX PA remain distinct exact grades. If a medical or biocompatible-capable claim is relevant, obtain the current manufacturer documentation for the exact powder, printer, process, cleaning and test scope. A material capability label does not approve every skin-contact, implant, fluid-path or regulated use.

PAx is a nylon copolymer lane that 3D Systems describes around high impact and elongation. It can be a useful middle decision, but only current product data and representative part evidence can establish how it compares with PA11 or PA12 for a specific snap, duct, guard or enclosure. Use the material-selection checklist to define the load and environment before selecting from family names.

TPU 90A is compatible, but flexible geometry changes the workflow

DuraForm TPU 90A is one of the 11 exact current records, and the 2026 SLS brochure describes it as a high-elasticity route with wear and tear resistance. Flexible material still creates a part-level decision. Thin walls, lattice openings, internal channels and enclosed volumes can make powder removal difficult. A nominal 90A hardness does not establish rebound, compression set, creep, sealing force, abrasion or chemical resistance in an arbitrary geometry.

Validate depowdering access and post-processing before committing to a design. Inspect hidden channels and interfaces, then test the real compression, recovery, motion and environmental exposure. When a different powder cell is under consideration, the Formlabs Fuse 1+ 30W material guide owns that machine's separate catalog, refresh and open-material decision; it is not evidence that profiles transfer to the SLS 380.

FR-106 and medical-capable claims need exact scope

DuraForm FR-106 is currently tagged for SLS 380, and 3D Systems describes it in flame, smoke and toxicity terms. Preserve the exact test method, specimen, thickness, orientation, conditioning and process named by the current manufacturer document. Do not shorten that evidence to “fireproof,” and do not promise that a finished enclosure or aircraft interior part passes a code because the base powder has a relevant rating.

The same rule applies to medical or biocompatible-capable language associated with ProX PA or other portfolio records. The required question is which exact material, build process, cleaning, post-process, test and regulatory pathway the claim covers. If the installed process or finished part falls outside that scope, route it through qualified review and testing. GoodPrints is not a certification authority.

Filled powders are dedicated material systems

DuraForm PA CF, ProX HST Composite and ProX GF are all current compatible records, but “filled nylon” is not one profile. Carbon, glass and other reinforcing systems change stiffness, thermal response, density, surface, powder behavior and anisotropy. Use the exact technical and safety data for the named material, and keep recovered streams segregated.

A filled material can improve a datasheet property while creating a poorer decision for a snap, impact part, sealed surface or fatigue-loaded feature. Validate orientation, weld regions, holes, fasteners, thin sections, post-machining and the actual thermal or mechanical cycle. A brochure statement about stiffness or temperature resistance is a manufacturer claim with scope, not independent testing or permission to skip finished-part acceptance.

Fresh and recycled powder are one controlled specification

The SLS 380 workflow uses a Material Quality Center (MQC) to control, blend and deliver fresh and recycled powder at a specified mix ratio. The MQC Single serves one printer; the MQC Flex can serve multiple printers. The Material Delivery Module (MDM) is a separate route that supports multiple materials and changeover. These components reduce manual work, but they do not create one universal refresh ratio.

Use the current 3D Systems instruction for the exact powder. Record fresh lot, recovered lot, thermal history, sieve or conditioning step, mix ratio and machine state. Powder exposed to repeated heat, moisture, debris or another grade is not equivalent to virgin powder. A completed build does not establish that an uncontrolled recycled blend will hold dimensions, color, surface or mechanical behavior across later batches.

Material variety also has a changeover cost and contamination risk. Before buying around all 11 options, decide which powders deserve dedicated production lanes, how the MQC or MDM configuration supports them, and how cleaning will be verified. A shop with recurring work in one or two grades may gain more from stable segregation than frequent switching.

Powder handling, ventilation, fire and PPE are capability limits

The SLS 380 is industrial laser and heated-powder equipment. Installation, electrical service, guarding, interlocks, operation and maintenance belong under current 3D Systems site-preparation, operating and safety instructions plus applicable building, fire, electrical and workplace requirements. Do not bypass interlocks or treat the enclosure as proof that emissions and dust are controlled.

Read the exact powder SDS before receiving material. Loading, breakout, recovery, sieving, cleaning, filter work and post-processing can create airborne dust, eye and skin exposure, contamination, static and combustible-dust concerns. Use the manufacturer-specified containment, ventilation, grounding, ignition control, housekeeping, spill response, waste route and PPE. Do not use ordinary dry sweeping or an unapproved vacuum around powder.

NIOSH additive-manufacturing guidance supports a hierarchy-of-controls approach that may include enclosure, local exhaust, housekeeping and appropriate PPE. It does not replace the exact 3D Systems documents, powder SDS, an industrial hygienist, the fire authority or the responsible EHS team. If the facility cannot safely receive, store, blend, print, recover and clean the powder, that material is not operationally compatible.

Post-processing and finished-part evidence complete compatibility

SLS removes support structures, not the need for design and acceptance controls. Deep cavities, escape holes, nested parts, thin walls, large flat sections, clearances and densely packed builds still influence powder removal, thermal history and outcome. Define how parts will cool, be extracted, cleaned, blasted, dyed, coated, machined and inspected before releasing the material.

Manufacturer claims about throughput, repeatability, yield, cost or surface quality depend on configuration, material, nesting, geometry, process state and acceptance criteria. Treat them as scoped manufacturer statements rather than guaranteed production outcomes. Qualify representative parts across builds and, where relevant, across machines or sites.

Pressure, lifting, vehicle-control, medical, food-contact, electrical, fire-rated and other high-consequence parts require applicable standards and responsible approval. The custom-printing service FAQ helps define files and acceptance, while the in-house versus outsourcing decision sheet helps when the complete powder cell is not yet justified.

Buyer and owner decision

• Choose or keep the SLS 380 when one or more of the 11 current exact DuraForm powders fit recurring production and the team can own powder control, facility safety, post-processing and finished-part release.
• Start with the exact PA11, PA12 or PAx grade whose current manufacturer data matches the real impact, stiffness, fatigue, surface and environmental requirement.
• Use TPU 90A only after geometry, depowdering, rebound, wear and duty-cycle validation.
• Use FR-106 or a medical-capable route only with the exact documented process and claim scope; never generalize a material label into finished-part certification.
• Use PA CF, ProX HST or ProX GF as dedicated filled-powder processes with segregation and representative orientation, thermal and mechanical evidence.
• Choose another process when the required feedstock is filament, pellet, resin, metal, wire or paste. Compare the EXT 800 pellet guide or Figure 4 135 resin guide instead of forcing an SLS workflow.
• Outsource first when demand is intermittent or the organization does not yet own powder handling, EHS, process development, cleaning, inspection and maintenance.

For a defined part, request a GoodPrints quote. For repeat production or broader process access, use the JC Print Farm route.

Bottom line

The current SLS 380 answer is an exact 11-powder DuraForm catalog, not a generic promise about all nylon or SLS powder. Operational compatibility includes the named grade, controlled fresh and recycled blend, MQC or MDM workflow, clean changeover, exact safety data, post-processing and finished-part qualification. If any of those controls are missing, the material is conditional or a poor fit even when its chemistry sounds similar.

Official sources checked

• 3D Systems SLS 380 product page for the current model, material families, MQC, MDM, process and manufacturer capability claims.
• 3D Systems material finder filtered for SLS 380 for the 11 current exact compatible-material records.
• 3D Systems 2026 SLS 380 brochure for exact-model workflow, material-family, MDM and MQC context.
• NIOSH: Approaches to Safe 3D Printing for exposure-control boundaries that supplement rather than replace manufacturer and facility requirements.