Formlabs Durable Resin is crafted for SLA 3D printing. Mimicking the properties of polypropylene, it stands out for its impressive impact resistance and flexibility. Whether you’re creating snap-fit joints, hinges, or prototypes, this resin delivers a flawless finish and outstanding mechanical properties.

Physical Properties

  • Density: Generally in the range of 1.1–1.2 g/cm³
  • Tensile Strength: Typically around 35-50 MPa, depending on post-curing procedures
  • Heat Deflection Temperature: Usually falls between 45-65°C after post-curing

Aesthetic Quality

Formlabs Durable Resin produces prints with a smooth surface finish and is often available in translucent or lightly tinted colors. The material is excellent for capturing fine details, and its smooth finish is ideal for both functional parts and display pieces.

Durability and Usage

Formlabs Durable Resin is engineered for applications requiring high impact resistance and flexibility. It is especially suitable for parts that need to bend without breaking, such as snap-fit joints, hinges, and prototypes mimicking polypropylene parts. Its unique combination of strength and flexibility makes it versatile for a wide range of applications.


The general post-processing steps involve washing the printed object in a solvent like isopropyl alcohol to remove uncured resin, followed by UV curing to enhance mechanical properties. The material can also be sanded, drilled, and painted, adhering well to most common adhesives and coatings.

Environmental Impact

Like most SLA resins, Formlabs Durable Resin is not biodegradable and is derived from non-renewable resources, making it less eco-friendly compared to materials like PLA. Responsible handling and disposal are essential to minimize its environmental footprint.

In summary, Formlabs Durable Resin offers a specialized material tailored for applications requiring both impact resistance and flexibility. Its unique mechanical properties make it a go-to choice for a range of specialized tasks, from industrial prototypes to functional parts. Although it is not the most environmentally friendly option, its specialized attributes make it invaluable for projects requiring a combination of strength and flexibility.

Formlabs Durable – Techincal Data Sheet