Durable Resin is also highly wear resistant, capable of extreme deformation before breaking, and has low friction compared to Standard and Tough Resin. Use Durable to prototype models that will eventually be made from polypropylene (PP) or high density polyethylene (HDPE). It is best used when these features are required in a room-temperature application.

Polypropylene is very commonly used in situations where high elongation, deformation, and/or impact resistance are required. Applications of polypropylene include items like toothbrushes, car bumpers, packaging, razors, and more.

Durable is ideal for engineering prototypes and has been developed to withstand high strain. Consider printing in Durable Resin for applications that require impact resistance for rugged prototyping and for models that feel or look like real polypropylene. Like Flexible Resin, Durable Resin also works for objects that require some flexibility. Unlike Flexible Resin, Durable is also useful when you need to maintain good rigidity.

Recommended for

  • Parts requiring high impact strength
  • Prototyping parts that will be made out of polypropylene or HDPE
  • Parts that require a low-friction surface, like ball joints
  • Parts that are both rigid and flexible
  • Snap-fit parts and flexures
Durable 3D printing
PropertiesDurable Resin
Ultimate Tensile Strength31.8 MPa
49 %
Flexural Modulus160 MPa
Tensile Modulus
450 MPa


  • Extreme deformation
  • Low friction
  • Good rigidity


  • Parts with very fine details
  • Not suitable constant loading
Design tips

Maximum bounding box

145 × 145 × 175 mm

Minimum bounding box

X, Y,Z > 5 mm ( for separated parts)

Minimum embossed detail

0.1 mm high & wide mm thick

Minimum engraved detail

0.1 mm high & wide

Minimum unsupported wall thickness

0.6 mm

A supported wall is connected on two or more sides. An unsupported wall is one connected to other walls on less than two sides. Walls in your model should be thicker than or equal to the minimum measurements suggested to ensure your model makes it through printing and cleaning. Walls that are too thin are prone to warping in the printing processing, or may break when we remove it from the printer and clean it. Walls and wires close to or slightly above the guidelines may still be rejected based on the geometry. For example, extra long wires or walls protruding from an object may be damaged during cleaning. Our production team will communicate with you if the design is too weak with tips on how to strengthen it.

Minimum supported wall thickness

0.3 mm

Minimum supported feature size

0.6 mm

Minimum unsupported feature size

1 mm

A geometry considered a wire when its thinner in both unconnected directions than its length. When a geometry is thicker than 0.9 mm in one direction, it will fall under the wall guidelines. Wires that are under our suggested minimums are prone to breaking in the cleaning process, or warping.

Escape hole diameter

Single Escape Hole Diameter
4.0 mm
Multiple Escape Hole Diameter
2.0 mm

Hollow parts of your product are filled in with a waxy support material, which is melted out before we ship your product. If escape holes are not large enough, this wax will remain inside the product.

A single escape hole at the end of a cavity will not allow material in the corners near the escape hole to fully escape. So we recommend multiple escape holes at both ends of the cavity.