Nylon Additive Manufacturing Providers
Nylon — PA12, PA11, and PA6 — is the most widely used polymer in powder bed fusion, delivering strong, flexible, and chemically resistant parts suited to functional prototyping and serial production. Nylon SLS and MJF parts are used across automotive, consumer electronics, sporting goods, and industrial applications. Find verified nylon AM providers on ForgedLink, screened for powder refresh ratios, mechanical consistency across batches, and finishing capabilities including dyeing and vapour smoothing.
These are all providers matching your brief in the current network.
Unlock the full network
Create a free account to see provider identities, contact details, and full execution profiles — matched to your brief.
Create Free Account →Join the network and receive matched briefs directly — before they open to the wider market. Founding providers pay 0% commission.
Why nylon is the workhorse polymer for functional AM production
Nylon — technically polyamide, abbreviated PA — is the dominant polymer for SLS (selective laser sintering) and MJF (Multi Jet Fusion) powder-bed processes, and it earns that position by being the best all-round functional engineering polymer available to AM: strong enough for production end-use parts, flexible enough for living hinges and snap-fits, chemically resistant to fuels, oils, and many solvents, and capable of being dyed, vapour smoothed, or injection-moulded-appearance finished. PA12 is the default — it has the lowest moisture absorption in the polyamide family, the widest availability across SLS and MJF providers, and the most extensive mechanical qualification dataset. PA11, made from bio-based castor oil, is tougher and more impact-resistant — the choice for parts under cyclic fatigue or shock loading.
The critical production advantage of powder-bed nylon over FDM is support-free building: unsintered powder supports parts within the build volume, so the full build volume can be packed with multiple parts at high density. This makes nylon SLS and MJF highly economic at medium-volume production (100–10,000 units) — a regime where injection moulding tooling cannot yet amortise but FDM per-part economics become costly. MJF adds further advantages: higher throughput than SLS, better surface isotropy, and compatible with PA12-Glass Beads and PP (polypropylene) for specialised applications.
Where AM nylon parts are used in production
Automotive interior clips, brackets, and ducting
SLS PA12 functional parts used in prototype and low-volume production vehicles — clips, duct connectors, bracket assemblies, and cable management parts that would require injection-mould tooling at scale but are produced by AM for pre-production vehicles and niche models.
Consumer product enclosures and mechanism parts
SLS and MJF nylon enclosures, hinged lids, latching components, and gear sets for consumer electronics, power tools, and household appliances — production-quality surface finish after vapour smoothing or bead blasting.
Footwear midsoles and lattice cushioning structures
HP MJF nylon lattice midsoles — a high-profile production application that has driven MJF adoption at scale. Adidas, New Balance, and multiple sportswear brands now produce lattice-core performance footwear in PA12 MJF, with per-pair economics that beat injection-moulded tooling at their volume levels.
Medical devices and wearable orthotic parts
PA12 and PA11 parts for Class I medical devices, wearables, and custom orthotics — biocompatible grades available (EMS-CHEMIE Grilamid, Arkema Rilsan); ISO 10993 characterised. Custom orthotic insoles and prosthetic sockets are now routinely scanned and printed at clinical scale.
Fluid connectors, valves, and manifold bodies
PA12 SLS manifolds, valve bodies, and fluid-handling parts replacing machined aluminium or injected PC/ABS in pneumatic and hydraulic systems operating below ~100°C and under modest pressures.
Industrial end-use tooling and jig hardware
SLS PA12 and PA11 jigs, fixtures, and check gauges at volumes too low for CNC machining to be economical — typical for small-batch assembly operations and production-line changeover tooling.
Common nylon grades for AM
PA12 (Nylon 12) — SLS and MJF default
The reference polyamide for powder-bed AM. Lowest moisture absorption in the PA family (~0.25%), good dimensional stability, tensile strength ~48 MPa, elongation ~18–25%. Widest provider availability; most extensive mechanical data. Default specification for functional end-use nylon AM.
PA11 (Nylon 11) — bio-based, higher toughness
Bio-sourced polyamide from castor oil. Tougher than PA12 (~50% higher impact resistance), higher elongation at break (~40–50%), slightly lower stiffness. Specified for parts under cyclic fatigue, snap-fit assemblies, and applications requiring PA11's chemical resistance profile (better than PA12 in some solvents).
PA12-GB (Glass-Bead filled)
PA12 with ~30–40% glass microsphere fill. Higher stiffness and lower elongation than unfilled PA12 — more like a rigid engineering plastic. Specified for dimensionally stable housings and structural parts needing reduced creep.
PA12-CF (Carbon-Filled)
PA12 with chopped carbon fibre reinforcement. Higher tensile modulus (~7–9 GPa), lower elongation, ESD-dissipative. Available on SLS and some FDM platforms. Used for stiff structural tooling and ESD-sensitive parts.
PP (Polypropylene) — MJF and SLS
Not a nylon but often on the same provider platform menu. PP offers excellent chemical resistance, living-hinge capability, and low density — used for fluid-handling and laboratory parts where nylon's moisture absorption would cause dimensional drift.
PA6 (Nylon 6) — high strength, hydroscopic
Higher tensile strength than PA12 (~80 MPa) but significantly higher moisture absorption (~3.5%) causing dimensional instability in humid environments. Used for high-load applications where moisture uptake can be managed by design or post-processing.
When to choose AM nylon over FDM plastics, injection moulding, or other AM polymers
SLS / MJF nylon vs FDM for functional parts: nylon powder-bed wins on isotropy (no layer-direction weakness), surface finish, support-free geometry, and chemical resistance. FDM wins at very low volumes (1–5 parts), where FDM's per-part machine time can undercut SLS build amortisation. For any functional end-use part at 10+ units, SLS or MJF nylon is almost always the better production route.
SLS / MJF nylon vs injection moulding: AM wins below the break-even volume where injection-mould tooling cannot amortise — typically under 1,000–5,000 units for simple parts, under 10,000 units for complex multi-cavity geometries. IM wins on per-part cost and surface finish at high volume (>10,000 units); AM wins on design freedom, lead time (days vs weeks for tooling), and iteration cost.
PA12 vs PA11: PA12 for the default case — lower cost, wider provider availability, better dimensional stability. Specify PA11 when the part must survive repeated impact loading, cyclic fatigue (snap-fits, flexing hinges), or bio-based material sourcing is a requirement. PA11 is also the standard for oil-and-gas downhole-grade polymer components.
Nylon vs PEEK for industrial applications: nylon is the default for sub-100°C service temperature, most chemical environments, and budget-sensitive applications. PEEK is specified when temperature exceeds 100°C, chemical resistance extends to solvents that degrade PA, or biocompatibility under ISO 10993 is needed (medical-grade PA12 is an option but PEEK has a broader regulatory precedent for implantable use).
Cost and lead time for AM nylon parts
Nylon SLS and MJF parts deliver in 2–5 days from most providers for standard builds — the fastest turnaround of any structural AM polymer process. Bead blasting, vapour smoothing, and dyeing add 1–3 days. Medical-grade parts requiring ISO 10993 documentation and material certification run 2–3 weeks. Batch economics are excellent: packing 50–500 parts per build reduces per-part machine time to pennies of the total cost.
Indicative pricing for a 100 cm³ PA12 SLS part (single unit, bead blasted): £70–£180 / €83–€213. MJF PA12 at similar volume runs slightly lower on per-part economics for larger batches. At 100 units nested in a single build, per-part costs typically drop to £30–£80 / €36–€95. Vapour smoothing adds £10–£30 / €12–€36 per part. Dyeing adds £5–£20 / €6–€24 per part. One of the most cost-accessible functional AM materials on the market.
Related processes & materials
Frequently asked questions
What's the difference between SLS and MJF for nylon parts?
Both are powder-bed processes that produce support-free nylon parts. SLS uses a CO₂ laser to selectively sinter PA12 powder layer by layer; MJF uses an HP-developed inkjet print head to deposit a fusing agent (and detailing agent) which is then exposed to an IR lamp to fuse the powder. In practice: MJF typically delivers <strong>better throughput</strong> (faster build rates), <strong>better isotropy</strong> (more uniform XYZ properties), and slightly better surface finish. SLS gives more process flexibility across material grades and machine platforms, and many SLS providers offer a wider range of PA grades including PA11. For standard PA12 production, the two processes are nearly equivalent in quality; choose on provider availability and per-part economics.
Is PA12 nylon suitable for food contact applications?
Yes — PA12 can be formulated and processed to meet food-contact regulations (EU Regulation 10/2011, FDA 21 CFR). The powder and any colourants / post-processing agents must be food-contact compliant grades. The as-sintered surface has open porosity that harbours bacteria; food-contact nylon parts typically require surface sealing (epoxy or polyurethane coating, or infiltration) and certification from the provider. Always confirm the specific regulatory compliance scope with the provider before specifying for food contact.
Why do nylon SLS parts look grey and slightly rough?
The characteristic grey surface of SLS nylon comes from the carbon black powder bed and the sintered particle structure — individual PA12 powder particles are ~50–100 µm, and the sintered surface reflects that granular texture at Ra ~8–15 µm as-built. Bead blasting smooths it to Ra ~4–8 µm and gives the classic uniform grey SLS finish. Vapour smoothing (with solvents like Smooth-On XTC-3D or specialist vapour-chamber systems) reflows the surface layer to Ra ~1–3 µm — close to injection-moulded appearance. MJF parts emerge grey-black due to the fusing agent chemistry but are otherwise identical.
What is powder refresh ratio and why does it matter?
In SLS and MJF, unsintered powder surrounding parts is not wasted — it can be reused. However, each thermal cycle degrades the polymer chains slightly (increased melt flow index, reduced molecular weight). The refresh ratio is the proportion of fresh (virgin) powder blended with recycled powder for each build — typically 30–50% fresh for PA12 SLS, lower for MJF. Providers who run inadequate fresh powder proportions produce parts with reduced elongation at break and higher variability — a quality signal to ask about. ForgedLink provider profiles capture refresh-ratio protocols as part of the screening process.
Can AM nylon be injection-moulded appearance finished?
Yes — vapour smoothing, manual sanding + priming, and spray painting of SLS/MJF nylon parts can approach injection-moulded surface finish quality for visual and functional evaluation models. Vapour-smoothed PA12 typically reaches Ra 1–3 µm, accepts paint well, and is visually equivalent to moulded parts to most observers. The internal structure remains porous unless infiltrated, which affects functional performance for fluid-contact applications — but for visual appearance models and non-fluid-contact functional parts, the finish is production-comparable.