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Formlabs Silicone 40A Resin
Introducing Silicone 40A Resin, the first accessible 100% silicone 3D printing resin. Eliminate molding and labor-intensive casting processes: Silicone 40A Resin uses Formlabs’ patent-pending Pure Silicone Technology™ to 3D print pure silicone parts in-house, in a matter of hours.
With this 40A Shore durometer material, you can fabricate soft, pliable, and durable parts with a 230% elongation at break and a 12 kN/m tear strength that can withstand repeated cycles of stretching, flexing, and compression. Combine the high performance of silicone and the design freedom of 3D printing to create highly functional silicone parts with excellent chemical and thermal resistance (-25°C to 125°C), fine features as small as 0.3 mm, and complex geometries that are not possible with traditional methods.
Disclaimer: We are currently awaiting TSCA registration. Until we obtain this registration, Silicone 40A Resin can only be used for research and development (R&D) purposes. We expect to receive TSCA registration in late 2023. Once we receive the registration, this resin can be used for commercial, R&D, and any other suitable applications.
Why Choose Silicone 40A Resin
The First Accessible 100% Silicone 3D Printing Material
Silicone 40A Resin is a pure silicone, without added monomer or acrylate, enabled by Formlabs’ new patent-pending Pure Silicone Technology™. Silicone 40A Resin combines the superior material properties of cast silicone with the benefits of 3D printing.
Outstanding Elastomeric Performance
Fabricate soft, pliable, and durable parts with a 230% elongation at break and a 12 kN/m tear strength that can withstand repeated cycles of stretching, flexing, and compression. Produce highly functional silicone parts with excellent chemical resistance and thermal stability (-25°C to 125°C).
Cost-Effective Rapid Prototyping and Low Volume Manufacturing
Eliminate tooling and labor-intensive casting processes to enable custom and low-volume manufacturing of silicone parts.
Newfound Design Freedom
Create customized silicone parts with isotropic properties, fine features as small as 0.3 mm, and complex geometries that aren’t possible with casting or molding.
Fast and Easy Fabrication
Benefit from the streamlined Formlabs SLA ecosystem to produce pure silicone parts in-house, in a matter of hours.
Applications
Silicone 40A Resin is a cost and time-effective solution for fabricating functional prototypes, validation units, tooling, and small batches of silicone parts. Parts printed in Silicone 40A Resin are soft, durable, with excellent elasticity, chemical resistance, and thermal stability. They are used in industries such as consumer goods, automotive, robotics, manufacturing, and healthcare.
Consider Silicone 40A Resin for:
Seals, gaskets, grommets, connectors, and dampeners for automotive, robotics, and manufacturing.
Customized prosthetics, orthotics, audiology models, and medical devices.
Wearables, handles, and grippers for consumer products.
Flexible fixtures, masking tools, and soft molds for casting urethane or resin.
Material Properties*
Shore Hardness
40A
Ultimate Tensile Strength
5.5 MPa
Elongation at Break
230%
Tear Strength
12 kN/m
Rebound Resilience
34%
Glass Transition Temperature (Tg)
-110 °C
Ross Flexing Fatigue (-10 °C, notched)
> 500,000 cycles
Ross Flexing Fatigue (23 °C, notched)
> 500,000 cycles
Cytotoxicity
Pending
