Formlabs Silicone 40A Resin

Silicone 40A Resin 1L

Silicone 40A Resin is the first 100% silicone 3D printing material enabled by Formlabs’ patent-pending Pure Silicone Technology™. Eliminate molding and labor-intensive casting and 3D print pure silicone parts in-house within hours.

This Shore 40A silicone enables the production of soft, flexible, and durable parts with a 230% elongation at break and 12 kN/m tear strength, capable of withstanding repeated cycles of stretching, bending, and compression. Combine the high performance of silicone with the design freedom of 3D printing to produce functional silicone parts with excellent chemical and heat resistance (from -25°C to 125°C), fine features as small as 0.3 mm, and incredibly complex geometries.

*If in stock, delivery within 3 days after ordering. If out of stock, shipment will be made within 3 days after restocking.

Why Choose Silicone 40A Resin?

The first available 100% silicone 3D printing material — Silicone 40A Resin is a pure silicone free of additives like monomers or acrylates, made possible by Formlabs’ patent-pending Pure Silicone Technology™. It combines the exceptional material properties of cast silicone with the advantages of 3D printing.

🔷 Excellent Elastic Performance

Produce soft, flexible, and durable parts with 230% elongation at break and 12 kN/m tear strength. These components can withstand repeated cycles of stretching, bending, and compression, offering outstanding chemical resistance and thermal stability from -25°C to 125°C.

🔷 Cost-Effective Rapid Prototyping and Low-Volume Production

Minimize mold-making and labor-intensive casting processes to enable customization and small batch production of silicone parts.

🔷 Newfound Design Freedom

Create isotropic parts with fine features down to 0.3 mm and complex geometries that are impossible to achieve through traditional casting or molding methods.

🔷 Fast and Simple Fabrication

Benefit from Formlabs' simplified SLA ecosystem and produce pure silicone parts in-house in just hours.

Applications

Silicone 40A Resin is a cost-effective solution for creating functional prototypes, verification units, molds, and low-volume silicone parts. These parts are soft, durable, and exhibit excellent elasticity, chemical resistance, and thermal stability. They’re used across industries including consumer goods, automotive, robotics, manufacturing, and healthcare.

• Seals, gaskets, grommets, connectors, and dampers for automotive, robotics, and manufacturing.
• Custom prosthetics, orthotics, audiology models, and medical devices.
• Wearables, grips, and fixtures for consumer products.
• Flexible fixtures, masking tools, and soft molds for casting polyurethane or resin.