SLA Formlabs Silicone 40A Resin 3D Printing Service

SLA Formlabs Silicone 40A Resin

Formlabs Silicone 40A Resin

Formlabs’ patent-pending Pure Silicone Technology™ 3D prints pure silicone parts which are soft and durable with excellent elasticity, chemical resistance, and thermal stability. Ideal for consumer goods, automotive, robotics, manufacturing, and healthcare.

Min. Order Value $11

Est. Lead Time 7 days

Max Build Size

145 x 145 x 185 mm

Min Build Size

5 x 5 x 5 mm

Default Layer Height

0.1 mm

Optional Layer Heights

0.1 mm

Tolerance

±0.3% (with a lower limit of ±0.3 mm)

Heat Endurance

N/A

Smooth ★★★★

Detail ★★★

Accuracy ★★

Rigidity ★

Flexibility ★★

Available Colors

Black

Available Post Process

Gallery

Suitable For

Moving and assembled parts,
Cases, holders, adapters,
Form and fit testing

Not Suitable For

Large models

Additional Info

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 an 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.

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.
Wearables, handles, and grippers for consumer products.
Customized prosthetics, orthotics, audiology models, and medical devices.
Flexible fixtures, masking tools, and soft molds for casting urethane or resin.

Min Supported Wall Thickness A supported wall is one connected to other walls on two or more sides.	0.7 mm
Min Unsupported Wall Thickness An unsupported wall is one connected to other walls on less than two sides.	0.7 mm
Min Supported Wires A wire is a feature whose length is greater than five times its width. A supported wire is connected to walls on both sides.	0.7 mm
Min Unsupported Wires A wire is a feature whose length is greater than five times its width. An unsupported wire is connected to walls on less than two sides.	0.7 mm
Min Hole Diameter The accuracy of a hole not only depends on the diameter of the hole, but also on the thickness of the wall through which the hole is printed. The thicker the wall section, the less accurate the hole becomes. Through holes must also allow for line-of-sight clearance to ensure all material is cleared during post-processing.	0.7 mm
Min Embossed Detail A detail is a feature whose length is less than twice its width. The minimum detail is determined by the printer’s resolution.When detail dimensions are below the minimum, the printer may not be able to accurately replicate them. Details that are too small can also be smoothed over in the polishing process. To ensure details come out clearly, make them larger than the indicated minimum. We may refrain from printing products with details smaller than the minimum, since the final product will not be true to your design. If your product has details smaller than the minimum, try making them larger, removing them, or considering a material with finer detail.	0.3 mm
Min Engraved Detail A detail is a feature whose length is less than twice its width. Engraved or debossed details go into a surface.	0.3 mm
Min Clearance Clearance is the space between any two parts, walls or wires. To ensure a successful product, make the clearance between parts, walls, and wires greater than the indicated minimum. If your clearance is too small, try making the gap bigger, or consider fusing the parts or features if their independence is unnecessary. You can also try a material with a smaller minimum clearance.	0.7 mm
Min Escape Holes Escape holes allow unbuilt material inside hollow products to be removed. Normally you don’t need to consider this, our technician will add escape holes before printing. When products contain hollow cavities, they are often filled with powder/liquid even after they are removed from the build tray. If escape holes are not large enough, or the geometry of the product makes it difficult to shake or blast the powder out, we cannot successfully clean it.	5 mm
Interlocking/moving or enclosed parts? Sometimes the interlocking/moving parts can’t be printed, since the supports inside the cross section can’t be removed.
Require Support Material? Because each layer needs to build off the last, for some material, angles of more than 45 degrees generally require supports to be printed along with the design. Supports are not inherently detrimental for your design, but they do add complexity to the printing process and lead to less smooth finish on overhanging parts.	Yes

Feature

Watertight	Foodsafe	Glueable	Recycleable

Biocompatible	Biodegradable	Flame Retardant	Conductive
Untested	Untested	Untested	Untested

3D Printer

Formlabs FORM3

Material Spec Sheet

SLA Formlabs Silicone 40A Resin is 3D printed using DLP/SLA (Digital Light Processing/Stereolithography) technology.

Stereolithography is used to build your design with this material.Starting from a 3D model, a model is built by cutting it into thin layers via specialized software.

A support structure is created, where needed, in order to deal with overhangs and cavities.

The process takes place in a large tank and begins when a layer of liquid polymer is spread over a platform. This machine then uses a computer controlled laser to draw the first layer onto the surface of a liquid polymer, which hardens where struck by the laser. The model is then lowered and the next layer is then drawn directly on top of the previous one. This is repeated until the model is finished. In this way, layer by layer, an object is “drawn” in the liquid by the beam, with the layers being consolidated throughout the process.

When the object is complete, it is raised out of the tank via the supporting platform – much like a submarine rising to the surface of the water – with the excess liquid flowing away. The supports are removed manually after the model is taken from the machine.

How is DLP/SLA 3D Printing Working?

SLA Formlabs Silicone 40A Resin