
SLA | Elastomeric | Soft | 100% Silicone | Wear Resistant | Tear Resistant
100% Silicone 3D Printing for Soft, Pliable, and Durable Parts
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.
The washing and curing process for Silicone 40A is slightly different from other resins so please review the workflow here >
What's Included
- Silicone 40A Resin 1L
Compatible with
Printer compatibility: Form 3, Form 3+, Form 3B, Form 3B+
Compatible with these resin tanks: Form 3/3B Resin Tank V2, Form 3/3B Resin Tank V2.1
Compatible with these build platforms: Form 3 Build Platform (recommended), Form 3 Build Platform 2, Form 3 Stainless Steel Build Platform
Formlabs Silicone 40A Resin (Form 3) - 1L
Experience true silicone 3D printing with Formlabs Silicone 40A Resin. This revolutionary resin delivers the performance of molded silicone — including excellent flexibility, strength, and biocompatibility — with the precision of 3D printing. Perfect for creating soft, durable parts like wearables, seals, medical devices, and custom gaskets, it gives you unmatched design freedom and production efficiency right from your desktop printer.
- Genuine Silicone Properties: Prints true silicone parts with 40A Shore hardness, offering outstanding elasticity, durability, and chemical resistance.
- Exceptional Print Quality: Achieve detailed, high-resolution parts with excellent surface finish, ideal for both prototypes and end-use applications.
- Flexible and Tear-Resistant: Engineered for repeated flexing and stretching without tearing, perfect for dynamic or compressive components.
- Seamless Printer Compatibility: Designed for Form 3, Form 3+, Form 3B, and Form 3B+ with Resin Tank V2 or V2.1 and Build Platform or Build Platform 2.
- Expand Production Possibilities: Print complex silicone designs not achievable with traditional molding, speeding up innovation and reducing production costs.
Who Should Use It and How
Formlabs Silicone 40A Resin is ideal for engineers, designers, healthcare professionals, and manufacturers needing soft, biocompatible parts for wearable tech, seals, prosthetics, and cushioning components. Compatible with Form 3, Form 3+, Form 3B, and Form 3B+ printers using Resin Tank V2 or V2.1 and recommended with the Form 3 Build Platform for best results. Simply print your design, post-process, and unleash the full performance of 3D printed silicone.