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Rigid 4K Resin Overview

Printed on a SLA 3D printer, Rigid resin is a long-lasting material that is highly resistant to deformation over time. It is great for printing thin walls and features. It offers high stiffness, a high quality surface finish, and is reinforced with glass.

Formlab’s Rigid 4K Resin is best for parts that need ZERO give. This material has zero flexibility which makes it ideal for mounts and brackets due to its high tensile strength and stiffness. This material closely resembles PEEK.


Jigs prototyping
Fixtures and tooling
Electrical casings and housings

Build Volumes

145 x 145 x 185mm (5.7 × 5.7 × 7.3in) 

Lead Times

❮ No Rush - 5 business days
❯ Standard- 3 business days
❯❯ Rush - 2 business days (No Support Removal)
❮❮ Extended - 7 business days

Quality (Microns)

This number determines how thin each layer is. The smaller the micron count, the thinner the layer, this results in higher surface detail and better surface finishes.


⭐⭐ Standard Quality - 100 microns
⭐⭐⭐ Detailed Quality - 50 microns


Material prints as-is, no color options available. Material is naturally white in color.


Pro's of Rigid 4K Resin

When Rigid 4K Resin is a perfect material choice
  • Great for functional parts that need to look good and work well
  • Provides some thermal and chemical resistance
  • Extremely high stiffness and strength
  • Great for prototyping parts with thin walls
  • Great for printing mounts, brackets, jigs, and fixtures

Con's of Rigid 4K Resin

When to seek other material options

  • Supports are necessary for printing which can affect the visual quality & dimensional accuracy of the part
  • Brittle in nature, not impact resistant, will break when dropped
  • Custom colors not available, material is white in color
  • Not ideal for parts that require any flexibility