Formlabs Elastic Resin

Elastic resin is a flexible 3D printing material produced by Formlabs. It is one of the proprietary Engineering Resins and the most bendable one. With a Shore durometer of 50A, high elongation and energy return, this elastomeric resin is ideal for manufacturing soft, pliable parts that need to be stretched and compressed multiple times. Durable and ductile, Elastic resin parts perform like silicone-made ones. They resume their original shape after stretching or compression. The resin features great tear strength, which makes it capable of repeated cycles of use. 

Formlabs Elastic resin is transparent. It is widely used for medical and educational models. Many professionals used it to produce a range of performance products, including wearables, medical devices, robotics parts and more. It prints at 100 microns on any Formlabs Form 2 SLA 3D printer. When printing with Elastic resin, it is highly recommended to add additional supports or increase their density to reduce the risk of printing failures. Continue reading our thorough review.

Elastic Resin is ideal for producing professional technical products, including diving masks. Here is an example of the results achievable.

Specifications

• Resin features
• Colors
   

Resin features

Formlabs Elastic resin can be printed at a 100-micron layer resolution. It can be used on the Form 2 printer equipped with a Resin Tank LT. Elastic resin parts require support structures to avoid printing failures. Also, you’ll need to post-cure them to maximize their mechanical properties.

The Elastic Resin comes in 1L cartridges.

Technical specs

After post-curing the Elastic resin prints, you will get:

• Ultimate tensile strength: 3.23 MPa
• Stress at 50% elongation: .94 MPa 
• Stress at 100% elongation: 1.59 MPa
• Elongation at Failure: 160%
• Compression set at 23C for 22 hrs: 2%
• Compression set at 70C for 22 hrs: 9%
• Tear strength: 19.1 kN/m
• Shore hardness: 50A

Finishing

When printing with Formlabs Elastic resin, you’ll have to wash the printed parts for 10 minutes on the build plate. Then you’ll have to remove the prints from the platform and wash them again for 10 more minutes. Once the models will be completely dry, you can remove any support structure and post-cure the parts.

For additional information about post-curing, please refer to the official Form Cure time and temperature settings.

Colors

Formlabs Elastic resin is a transparent 3D printing material ideal for producing silicone-like parts.

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