Formlabs Tough 1500 Resin (Form 4) 1 L

Formlabs Tough 1500 Resin v2 (Form 4) 1 L

Tough 1500 Resin v2 is a resilient material with strength, stiffness, and toughness comparable to polypropylene (PP). Specifically formulated for the Form 4 ecosystem, it offers exceptional resistance to fractures, impacts, and shattering. It is the ideal choice for parts that must balance stiffness and ductility, such as compliant mechanisms or rugged enclosures.

This 1-litre cartridge leverages a new formulation that delivers 10 times higher fracture toughness than the previous version.
Note: Tough 1500 Resin v1.1 is the last of our stock, with the V2 formulation serving as the permanent replacement for the Form 4 series.

Why choose Tough 1500 Resin v2?

Tough 1500 Resin v2 is a robust and ductile material that rivals the toughness of industrial thermoplastics while providing the precision of SLA 3D printing.

• Tougher where it matters: features 10 times higher work of fracture, ensuring parts do not fail when drilled, tapped, or subjected to stress.
• High resilience: offers extremely high elongation at break (155%) and high flex fatigue resistance, perfect for snap-fits and flexures.
• Environmental stability: provides superior temperature and UV resistance (66 °C HDT) compared to other high-compliance materials.
• Creep resistance: maintains its shape over time under load, matching the performance of polypropylene with minimal deformation.

Applications for Tough 1500 Resin v2:

Tough 1500 Resin v2 is ideal for resilient prototyping or simulating the toughness of polypropylene (PP).

• Compliant mechanisms: latches, flexures, dampers, and hinges that require a balance of stiffness and ductility.
• Rugged enclosures: protective housings with functional elements like self-tapping screw bosses and snap-fits.
• Industrial tooling: impact-resistant jigs and fixtures designed to survive long-term use on the factory floor.
• Functional prototypes: clasps, buckles, and components requiring the compliance and resilience of PP.

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. For the best surface finish, allow parts to air dry for at least 10 minutes after washing.

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.

Note: Only compatible with the Formlabs Form 4 series resin printer.