- Print Technology
- SLA
- Characteristics
- Wear resistant, Elastomeric, Soft Silicone-Like, Tear Resistant
- Ultimate Tensile Strength
- 5.0 MPa
- Elongation at Break
- 230.0 %
- Tear Strength
- 12.0 kN/m
- Shore Hardness
- 40.0 A
- Stress at 100% Elongation
- 1.0 MPa
- Ross Flexing Fatigue
- 500000.0 cycles
Silicone 40A Resin is the first accessible 100% silicone 3D printing material, using Formlabs’ patent-pending Pure Silicone Technology™. Eliminate molding and labor-intensive casting processes and 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.
- Print Technology
- SLA
- Characteristics
- Wear resistant, Elastomeric, Soft Silicone-Like, Tear Resistant
- Ultimate Tensile Strength
- 5.0 MPa
- Elongation at Break
- 230.0 %
- Tear Strength
- 12.0 kN/m
- Shore Hardness
- 40.0 A
- Stress at 100% Elongation
- 1.0 MPa
- Ross Flexing Fatigue
- 500000.0 cycles
Select Printer Series and Resin Volume
Bulk Order Discount
- 15%
- 30 L
- 20%
- 60 L
- 25%
- 120 L
- 30%
- 240 L
- 35%
- 1,000 L
- 40%
- 2,000 L
- 45%
- 3,000 L
Compatibility
- 3D Printer
- Form 4, Form 4B, Form 3, Form 3B
- Build Platform
- Form 4 Build Platform, Form 4 Flex Build Platform, Form 3 Build Platform, Form 3 Build Platform 2, Form 3 Stainless Steel Build Platform
- Tank
- Form 3 Resin Tank V2.1, Form 4 Resin Tank
Silicone 40A Resin—
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.
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*
| Parameter | Post-cured for 45 minutes at 60 ºC in a beaker of water |
|---|---|
|
Shore Hardness |
40 A |
|
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 |
Workflow
Post-Processing
Washing
The foundational step in any SLA post-processing workflow is to remove any excess resin on the surface of the parts through an alcohol or ether wash.
SETTINGS
Curing
Post-curing Engineering and Specialty Resins is essential for parts to achieve their full strength and functionality. This step completes the chemical reaction initiated during printing, transforming the part from its green state into a fully finished component.
SETTINGS
Form Cure V1 | Form Cure V2 | Form Cure L V1 | Form Cure L V2
Request a Free Silicone 40A Resin Sample Part
See and feel Formlabs quality firsthand. We’ll ship a free Silicone 40A Resin 3D printed sample part to your office.
