Formlabs® Rigid 10K


Rigid 10K Resin

Resin for Rigid, Strong, Industrial-Grade Prototypes

3D-printed parts produced with Formlabs' Rigid family of SLA resins are ideal for prototyping strong and stiff parts that resist bending and are thermally and chemically resistant or perform well under load but will brittle if pushed to extreme limits.

Rigid 10K. For industrial-grade parts to require complete rigidity

Rigid 10K is part of the rigid SLA 3D printing materials from Formlabs and is the stiffest in their engineering portfolio. This material is recommended for industrial parts that can withstand a significant load without bending. Simpler put, 3D-printed parts with Rigid 10K are tough as a rock.

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Material Properties

Proto3000_Icons_Tensile Strength

88 MPa

Proto3000_Icons_Tensile Modulus

11 GPa

Proto3000_Icon_Temperature Raise

41 μm/m/°C

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158 MPa

Performance Scale



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Benefits of Rigid 10 K Resin

High Stiffness, High Thermal & Chemical Resistance Material

Rigid 10K is highly stiff, allowing 3D-printed parts to resist deformation under various forces, pressures and torques. In addition, it withstands high temperatures and many chemicals.

Image of injection molding parts 3D printed in Rigid 10K by Formlabs

Accurate 3D-printed parts & Great Surface Finish

3D printing with Rigid 10K, you’ll obtain strong, detailed and accurate molds or other parts with an incredible surface quality.

Image of a part, 3D printed in Rigid 10K by Formlabs

Proto3000_Repeatability Homogeneity icon


Short-run injection molds and inserts

  Heat-resistant and fluid-exposed components, jigs, and fixtures

  Simulates stiffness of glass and fiber-filled thermoplastics

  Aerodynamic test models

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How to 3D print injection molds with Rigid 10K?

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Material Safety Datasheets

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Post Processing



10 minutes + 10 minutes in IPA

Rigid 10K Resin contains glass particles that enhance the strength of printed parts. Use separate wash buckets to prevent these particles from sticking to parts made with other resins. If parts require two wash times, they need to undergo two wash cycles. Use clean solvent for the second wash cycle. The first cycle removes most of the resin, and the second cycle thoroughly cleans the parts.

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60 minutes


70 ºC

Post-curing is essential for parts printed with engineering-focused resins (such as those in the Rigid, Tough & Durable, and Flexible & Elastic families) to achieve their optimal mechanical properties and intended functionality. Rigid 10K Resin V1 has a specific recommended post-curing time. Additionally, you can optionally heat the post-cured part in a non-food oven at 90 °C for 125 minutes for a higher heat deflection temperature.


Recent research and testing by the Formlabs engineering team have concluded that media blasting as an additional post-processing step that will improve Rigid 10K’s mechanical properties across every metric: tensile, flexural, and impact testing.

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Technical Specifications



UV Cure1

UV + Thermal Cure2

UV Cure + Media Blast

Ultimate Tensile Strength
55 MPa 65 MPa 53 MPa 88 MPa  
Tensile Modulus
7.5 GPa 10 GPa 10 GPa 11 GPa  
Elongation at Break
2% 1% 1% 1.7%  
Flexural Strength
84 MPa 126 MPa 103 MPa 158 MPa  
Flexural Modulus
6 GPa 9 GPa 10 GPa 9.9 GPa  
Notched Izod
16 J/m 16 J/m 18 J/m 20 J/m  
Unnotched Izod
41 J/m 47 J/m 41 J/m 130 J/m  
Heat Deflection Temp. @ 0.45 MPa
65 °C 163 °C 218 °C 238 °C  
Heat Deflection Temp. @ 1.8 MPa
56 °C 82 °C 110 °C 92 °C  
Thermal Expansion, 0-150 °C
48 μm/m/°C 47 μm/m/°C 46 μm/m/°C 41 μm/m/°C