Nylon 12 (3D Printed)

At a Glance


Production Time





3 days (rush)
5 days (standard)
White, black
0.1 mm
Functional prototypes, mechanical applications
As fast as 3 days
Grey, black
0.08 mm
End-use production parts,
Functional prototypes,

About the Material

Nylon 12 is a synthetic 3D printed polymer material that’s strong, durable and also has some flex to it. As a result, Nylon is a great material choice for snap fits, brackets, clips, and spring features. Nylon is also used for its thermal applications and can withstand temperatures up to 177℃.

Nylon 12 parts are susceptible to shrinkage due to the laser sintering mechanism and the cooling process. For large, thin parts, warping is highly likely so we strongly recommend increasing thickness or adding ribbing in the design to mitigate risk.

Fictiv offers Nylon 12 produced through Selective Laser Sintering (SLS) and also Multi Jet Fusion (MJF). As a result, a finished product from either of these technologies will have slightly different properties and risks. MJF machines deposit a detailing agent along the exterior of a part that, after media blasting, results in a less coarse surface finish compared with the SLS process. MJF parts also come off the bed grey, whereas SLS Nylon parts are white. Both can be dyed black afterwards.

MJF has a slightly better resolution compared with SLS, with a layer height at 0.08 mm compared with 0.1 mm for SLS. If you’re prototyping smaller quantities under around 25 units, SLS is generally more cost effective. At higher bridge production quantities, MJF becomes more cost effective because of the machine’s modular design and faster production speed.

As for mechanical properties, MJF Nylon has a higher flexural strength than SLS Nylon. Therefore, MJF Nylon is typically considered more often for end-use parts and functional testing under higher loads.

Material Properties


Tensile Strength

Elongation at Break

Modulus of Elasticity

Flexural Strength

48 MPa (6962 PSI)
1500 MPa (217000 PSI)
58 MPa (8412 PSI)
48 MPa (6962 PSI)
1935 MPa (280648 PSI)
65 MPa (9428 PSI)

Material Finish

The texture of SLS Nylon is similar to a very fine grit sandpaper with a matte finish. MJF Nylon parts are generally slightly smoother. Un-dyed MJF Nylon is grey, which may vary in shades across the same part of a surface. When dyed black, both SLS and MJF Nylon have a matte appearance.

sls nylon 3d printing

Design Recommendations


Min Wall Thickness

Min Clearance + Gaps for Fit

Max Part Size [x, y, z]

1.0 mm for production
1.5 mm for consistency (for measurement and mechanical applications)
0.5 mm clearance between features
340 x 340 x 600 mm
1.0 mm for production
1.5 mm for consistency (for measurement and mechanical applications)
0.2 mm clearance between features, we recommend 0.3 mm to ensure good fit
380 x 284 x 380 mm

Internal Cavities

Be sure to have a clearance to remove the support powder!

Threads & Inserts

Minimum 0.1 mm clearance is required for printed threads.

Text Guidelines

Raised features: 0.6 mm minimum
Recessed features: 0.5 mm minimum

Related Resources

Fictiv 3D Printing Material Datasheet