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Material
SLS/MJF Polypropylene

SLS/MJF Polypropylene

Engineering Plastics
DurableFunctionalWater resistantChemical resistant

Polypropylene (PP) is a lightweight, semi-rigid plastic known for excellent chemical resistance, low moisture absorption, and good fatigue resistance. Printed PP is comparable to injection-molded PP in density, strength, and heat deflection, but stretches far less before breaking (roughly 15–35% versus 100% or more). Parts soften under load at around 60 °C, degrade in prolonged sunlight, and are difficult to paint. Polypropylene works well for fluid-handling parts, parts that bend repeatedly like clips and hinges, orthotic insoles, and lightweight functional components.

Print with SLS/MJF Polypropylene
Mechanical Properties
Tensile strength21.4–29 MPa
Tensile modulus907–1600 MPa
Elongation14–20 %
Flexural strength22.8 MPa
Flexural modulus698 MPa
Density0.89 g/cm³
Print Constraints

Maximum build volume

450 × 450 × 450 mm

Min wall thickness0.8 mm
Min detail sizeSLS 0.3 mm, MJF 0.25 mm
Default layer height0.1 mm
Default infill100%
Min embossing1.5 mm
Min engraving1.5 mm
Accuracy± 0.3 mm
Warping riskHigh
Interlocking partsSupported

Available finishes

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

Standard

Standard

2 colors

The standard finish on SLS/MJF polypropylene has a matte, slightly grainy surface, with no support marks.

Electroplated

Electroplated

8 colors

Electroplated SLS/MJF polypropylene is coated in a thin layer of real metal for a metallic look and a conductive surface. Polypropylene is hard to plate, so the coating adheres less well than on other plastics and can peel or crack with flexing.

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