Formlabs Nylon 12 Powder: Nylon SLS 3D printing material

# Formlabs Nylon 12 Powder

Overview

Formlabs Nylon 12 Powder is a general-purpose PA12 powder for selective laser sintering on the Formlabs Fuse Series. It is designed for functional prototypes, complex assemblies, manufacturing aids, tooling, medical applications, and end-use production where dimensional accuracy, environmental stability, and repeatable mechanical performance matter.

Formlabs publishes 50 MPa tensile strength, 1850 MPa tensile modulus, 11% XY elongation, and 171°C HDT at 0.45 MPa; at 1.8 MPa, HDT is 87°C. The load condition matters, so 171°C should not be treated as a universal service temperature.

Formlabs also lists Nylon 12 among its best Fuse powders for dimensional accuracy, surface finish, print speed, and fine-feature resolution. It is biocompatible for specified skin-contact and mucosal-membrane-contact applications, with finished medical devices still requiring application-specific validation.

For current specifications and pricing, see the official Formlabs Nylon 12 Powder page, Formlabs SLS powder-selection guide, and Formlabs medical certifications reference.

Key Benefits

• 50 MPa tensile strength
• 11% XY / 6% Z elongation
• 171°C HDT @ 0.45 MPa / 87°C @ 1.8 MPa
• High dimensional accuracy and fine-feature resolution
• 30% refresh rate with up to 70% recovered powder
• Air printing recommended
• Support-free SLS geometry
• Skin- and mucosal-contact biocompatibility
• Fuse X1 / Fuse 1+ 30W / Fuse 1 compatibility
• 10 kg package

Formlabs Nylon Best For

1. Functional prototypes
2. Jigs and fixtures
3. Manufacturing aids
4. End-use production parts
5. Complex assemblies
6. Housings, connectors, and adapters
7. Orthotics and prosthetic applications where validated
8. Low-volume manufacturing
9. Nested SLS production builds
10. Parts that need stable dimensions across varying environments

Formlabs Nylon Technical Specifications

Material values are manufacturer test data. Formlabs explicitly notes that final performance varies with design and manufacturing practice, so production parts should be validated for their intended load, environment, and regulatory use.

Fuse Printer Compatibility

Formlabs currently lists Nylon 12 Powder as compatible with:

• Fuse X1
• Fuse 1+ 30W
• Fuse 1

The indexed Formlabs Fuse X1 is the newest relevant Print3DIndex-listed Formlabs SLS platform for this powder.

Nylon 12 is recommended for printing in air, making it simpler than powders such as Nylon 11 or Nylon 12 White that benefit from nitrogen workflows.

30% Refresh Rate and Powder Reuse

The 30% refresh rate means a validated blend of 30% fresh powder and 70% recovered unsintered powder.

Recovered powder is not infinitely reusable; repeated heat exposure ages it. Formlabs validates performance around specific refresh-rate and print-setting combinations, so deviating from the tested blend can change results.

First-Use Powder Aging and Bed Tuning

For a new workflow, Formlabs recommends aging powder and tuning bed temperature before the first standard build. Aging creates the recovered powder needed for the initial 70/30 blend, after which Nylon 12 generally needs little additional tuning compared with more specialized Fuse powders.

SLS Design Advantages

Because surrounding powder supports the build, Nylon 12 can produce nested assemblies, moving mechanisms, internal channels, interlocking parts, and complex shapes without conventional supports. Enclosed cavities still need powder-removal access, and packing/orientation affects yield and surface quality.

Mechanical and Thermal Performance of Formlabs Nylon

Nylon 12 is a balanced PA12 rather than Formlabs' toughest or stiffest powder. It combines 50 MPa tensile strength, 1850 MPa modulus, 11% XY elongation, 32 J/m notched Izod, and 171°C / 87°C HDT at 0.45 / 1.8 MPa.

For warm, mechanically loaded parts, the 87°C figure at 1.8 MPa is often more informative than the low-load 171°C value.

Biocompatibility and Medical Use of Nylon

Formlabs lists Nylon 12 Powder for skin and mucosal membrane contact and documents steam, gamma, EtO, and e-beam sterilization compatibility within its testing framework.

That does not automatically certify every printed device. Medical use still requires validation of the print, cleaning, sterilization, geometry, contact duration, and applicable regulatory pathway.

Powder Handling and Safety of Nylon Powder

Formlabs treats loose polymer powder as a combustible particulate material. Follow the SDS, avoid ignition sources and dust clouds, use suitable PPE, and use an approved grounded/bonded vacuum for cleanup.

Store powder closed and dry. Formlabs recommends 50% RH or lower around Nylon 12 printing, storage, and powder-handling equipment.

Post-Processing: Fuse Sift and Fuse Blast

Parts are depowdered and reusable powder recovered through Fuse Sift or an approved equivalent, then media blasted or finished with Fuse Blast. Parts can subsequently be dyed, coated, polished, tumbled, or machined. Natural Nylon 12 has a lightly textured grey SLS surface.

Formlabs Nylon 12 Powder Price and Cost per Kilogram

For users searching Formlabs Nylon 12 Powder price or SLS powder cost per kg, the current US price is US$999 per 10 kg, or about US$99.90/kg before bulk discounts.

Actual part cost also depends on the 30% refresh ratio, build packing, powder loss, yield, post-processing labor, and machine utilization.

Nylon 12 Powder vs Nylon 12 Tough Powder

The Formlabs Nylon 12 vs Nylon 12 Tough comparison is stiffness and loaded heat performance versus ductility and impact tolerance.

Choose Nylon 12 for general-purpose functional parts and better loaded heat resistance; choose Nylon 12 Tough for snaps, hinges, impact, long parts, and higher ductility.

Nylon 12 Powder vs Nylon 12 GF Powder

The Nylon 12 vs Nylon 12 GF comparison is balanced performance versus glass-filled stiffness. Nylon 12 GF reaches 2800 MPa tensile modulus and 113°C HDT at 1.8 MPa, but elongation falls to 4% and refresh rises to 50%.

Choose Nylon 12 for versatility and ductility; choose GF for rigid tooling and higher loaded heat resistance.

Nylon 12 Powder vs Nylon 11 Powder

The Formlabs Nylon 12 vs Nylon 11 comparison is stiffness and dimensional stability versus flexibility and impact. Nylon 11 offers 40% elongation and 71 J/m notched Izod, making it better for clips, hinges, orthotics, and repeated flexing.

Nylon 12 is better for rigid assemblies and routine production, and it prints in air while Formlabs recommends nitrogen for Nylon 11 on Fuse 1+ 30W.

Nylon 12 Powder vs Nylon 12 White Powder

The Nylon 12 vs Nylon 12 White comparison is broad production flexibility versus white aesthetics. Nylon 12 White offers 47 MPa tensile strength, 8% elongation, and 177°C HDT at 0.45 MPa, but is limited to Fuse 1+ 30W and benefits from nitrogen to preserve color.

Choose standard Nylon 12 for routine production; choose White for medical visualization, branded parts, and dyeing.

Formlabs Nylon 12 Powder vs MJF PA12

The keyword SLS Nylon 12 vs MJF PA12 compares different process ecosystems. Formlabs Nylon 12 is validated for the Fuse SLS platform and is not a drop-in MJF powder.

Both processes can make support-free PA12 parts, but energy delivery, powder management, surface finish, refresh strategy, and cost structure differ by machine/material system.

Comparison Table: Formlabs Nylon Powders

Different powders also have different printer and atmosphere requirements, so material selection should consider workflow as well as mechanical values.

Which Formlabs SLS Powder Fits Best?

• Nylon 12 Powder: best default choice for dimensional accuracy, strong general-purpose parts, high detail, and routine production.
• Nylon 12 Tough: best for ductility, snaps, hinges, impact, and reduced warping on long parts.
• Nylon 12 GF: best for high stiffness, rigid tooling, and higher loaded heat resistance.
• Nylon 11: best for flexibility, impact resistance, fatigue, orthotics, and repeatedly flexed parts.
• Nylon 12 White: best for white aesthetics, medical visualization, branded parts, and dyeing.
• Nylon 12 Powder: strongest choice when no specialized property outweighs balanced performance and process simplicity.

Formlabs Nylon Powders Price and Availability

Formlabs currently lists Nylon 12 Powder at US$999 per 10 kg package, equal to about US$99.90/kg. For regional reference, US$999 is approximately €855.12 in Europe, £735.76 in the UK, AED 3,669.28 in the UAE, C$1,381.62 in Canada, A$1,404.37 in Australia, and ₹95,459 in India. Actual pricing may vary by region, taxes, shipping, stock, and exchange rates.

Limitations and Practical Considerations

• Nylon 12 is balanced rather than the toughest or stiffest Formlabs powder.
• The 171°C HDT value is measured at 0.45 MPa; at 1.8 MPa HDT is 87°C.
• A 30% refresh rate still requires disciplined powder tracking and mixing.
• First-use powder aging and bed-temperature tuning are recommended.
• Loose powder requires PPE and combustible-dust precautions.
• SLS parts need depowdering and blasting.
• Internal cavities need powder-removal access.
• Natural parts have a grey textured SLS finish.
• Medical use requires validation of the complete device and manufacturing process.
• Regular material switching can require extensive cleaning; dedicated powder-handling equipment may be preferable.
• Formlabs recommends keeping Nylon 12 powder-handling areas at 50% RH or lower.
• Powder advertised for the Fuse SLS workflow should not be treated as directly compatible with MJF printers.

Frequently Asked Questions