Formlabs Silicone 40A Resin (Form 4) 1 L
£346.80
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Silicone 40A Resin is the first accessible 100% silicone 3D printing material, using Formlabs’ patent-pending Pure Silicone Technology™. Eliminate moulding and labour-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.
| Specification | Value |
|---|---|
| Print Technology | SLA |
| Biocompatibility | Skin Contact |
| Minimum Layer Thickness | 100 micron |
| Categories | Temperature Resistant, Elastomeric, Specialty, Medical |
| Applications | Manufacturing Aids, End-Use Parts, Rapid Prototyping |
| Recommended Applications | Seals and gaskets, wearables, customised medical devices |
| Elongation at Break | 230.0% |
| Tear Strength | 12.0 kN/m |
| Ultimate Tensile Strength | 5.0 MPa |
| Stress at 100% Elongation | 1.0 MPa |
| Ross Flexing Fatigue | 500000.0 cycles |
| Shore Hardness | 40.0 A |
Compatibility
Compatible 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
Compatible Tank: Form 4 Resin Tank, Form 3 Resin Tank V2.1
Compatible Printer: Form 4, Form 4B, Form 3, Form 3B
Why Choose Silicone 40A Resin?
Silicone 40A Resin is a pure silicone, without added monomer or acrylate, enabled by Formlabs’ 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.
Cost-Effective Rapid Prototyping and Low Volume Manufacturing
Eliminate tooling and labour-intensive casting processes to enable custom and low-volume manufacturing of silicone parts.
Newfound Design Freedom
Create customised silicone parts with isotropic properties, fine features as small as 0.3 mm, and complex geometries that aren’t possible with casting or moulding.
Fast and Easy Fabrication
Benefit from the 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 and 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
Produce functional silicone components for automotive, robotics, and manufacturing applications.
Customised Prosthetics, Orthotics, Audiology Models, and Medical Devices
Create soft, durable silicone parts for customised healthcare and medical applications.
Wearables, Handles, and Grippers
Produce flexible, comfortable parts for consumer products and handheld applications.
Flexible Fixtures, Masking Tools, and Soft Moulds
Create tooling for casting urethane or resin, masking, and flexible manufacturing aids.
Material Properties*
Download Silicone 40A Resin Technical Data Sheet
| 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: Form Wash | Form Wash L
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
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