Formlabs Castable Resin

Available on backorder
A high-precision resin
  • Hairlike details
  • Sharp edges
  • Smooth surfaces
  • Wide range of applications
  • No visible layers
  • 24/% Customer Support
  • FREE Training
  • FREE Delivery over $200
Material Specs
  • Print layer resolutions: 25, 50, and 100 microns
  • Color: Blue
  • Post-curing required
  • 1L cartridge
Price: $285.00
Order now and we’ll ship it in 24 hours or less

Castable Resin is an SLA 3D printing material produced by Formlabs. Designed for burnout and casting, it is ideal for jewelry design, digital dentistry and rapid manufacturing. Indeed, it is capable of capturing complex geometries and shapes delivering capillary details, sharp edges and good surface finish with no visible layers.

Formlabs Castable Resin is an acrylate pure photopolymer formulated for direct investment casting. Reliable and simple to burnout, it has been used for printing filigrees and parts with clean and detailed surface decorations. Instead of melting, Castable Resin transitions to gas. For this reason, it requires a specific burnout process, which slows down the expansion process of the part reducing the risk of cracking. Compatible with the proprietary Form 2 3D printers, it will soon be available for the Form 3 models. Continue reading for a deeper review.

Castable Resin is ideal for direct investment casting of highly detailed rings, bracelets or earrings. As you can see, it is capable of reproducing minute details with extreme accuracy.

Credit: @formlabs / Instagram



  • Resin features
  • Colors


Resin features

For most designs, when printing with Castable Resin, you can set a layer height of 50 microns to get accurate results in rapid times. Otherwise, 100- and 25-micron layer heights are also supported. The material print settings are optimized for producing top-notch castable parts for both jewelry design and orthodontics.


Technical specs

Green Castable resin features:

  • Tensile Strength at Break: 11.6 MPa
  • Tensile Modulus: 220 MPa
  • Elongation at Break: 13 %



Parts printed with Castable Resin need post-curing. First, wash the Castable Resin parts in 90%+ isopropyl alcohol (IPA) using two sequential five-minute rinses. When completely dry, you can post-cure them on all surfaces under a 405nm light.

Castable Resin contains titanium dioxide, a component that separates from the mixture when unused. For this reason, you should always shake the cartridge and mix the resin in the tank before printing.



Castable Resin is available in blue.

For some resins, color availability might change. In case of any questions, please get in touch.

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Founded in 2013, we have integrated digital manufacturing in over 10,000 businesses. Today we are a team of 80+ 3D printing enthusiasts, geeks and entrepreneurs on a mission to make these technologies accessible to all.
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