For AI agents: Materialize has an MCP server at /api/mcp and a plain-text guide to using it at /llms.txt. Read /llms.txt first. It covers uploading a model, checking it will print, choosing a material, getting a quote and ordering.

Print
Material
SLS Flexible TPU

SLS Flexible TPU

Flexible Plastics
FlexibleFunctionalImpact resistantDurable

SLS flexible TPU (thermoplastic polyurethane) is a firm, rubber-like material (Shore hardness about 86–90A) that bends and can stretch to several times its length. It is tear-resistant, resists abrasion, and absorbs shock well, but isn't strong like rigid plastics and is weaker across the layers than within them. Parts soften at around 95 °C and are best kept below ~70 °C, and sustained compression can leave a permanent set that rises sharply when warm. SLS flexible TPU is a good option for grips, handles, footwear cushioning, and protective components.

Print with SLS Flexible TPU
Mechanical Properties
Tensile strength7–20 MPa
Tensile modulus60–85 MPa
Elongation220–500 %
Flexural strength6.2 MPa
Flexural modulus70–86 MPa
Density1.12 g/cm³
Print Constraints

Maximum build volume

500 × 500 × 400 mm

Min wall thickness0.8 mm
Min detail size0.3 mm
Default layer height0.15 mm
Default infill100%
Min embossing1 mm
Min engraving1 mm
Accuracy± 1.8 mm
Warping riskModerate
Interlocking partsSupported

Available finishes

Each finish can be combined with the available colors at checkout.

Standard

Standard

25 colors

The standard finish on SLS flexible TPU has a slightly grainy, powdery surface in white to off-white that feels soft and flexible, with no support marks. It can be left as printed, dyed, or painted.

Polished

Polished

25 colors

Polished SLS flexible TPU is chemically smoothed for a sealed, semi-gloss surface in place of the powdery SLS texture. Edges round off and fine details soften, and the inside of the part may be smoothed less.

Vapor Smoothed

Vapor Smoothed

25 colors

Vapor smoothed SLS flexible TPU has a uniform, sealed, semi-gloss surface in place of the powdery SLS texture, while staying flexible. Dimensions change very little, though sharp edges and fine details may soften slightly.

All materials