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PP Polypropylene

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PP Polypropylene

Polypropylene (PP) is a lightweight, chemical-resistant plastic (MJF) widely used in moulded products. 3D printed PP is suitable for containers, tubing, fluid systems and prototypes that must match a moulded PP product.

Technical data

Properties by technology

Values from manufacturer datasheets. “To be confirmed” means the value is being checked against the manufacturer’s data; full details are in the PDF.

Tensile strength25 MPa

Elongation at breakto be confirmed

Tensile modulus1400 MPa

Flexural strength25 MPa

Service temperature (max)70 °C

Hardness (Shore)80D

Production

Technology: HP Multi Jet Fusion (MJF)
Max. dimensions: 380 × 380 × 284 mm
Accuracy: ±0.3 mm or ±0.3 %
Min. wall: 0.75 mm (locally down to 0.5 mm)
Production time: up to 7 business days · express up to 4
Min. price: €20 per part, orders from €40 (excl. VAT)

Colours

greyblack

Download datasheet (PDF)

When to choose

A good fit when…

the part comes into contact with chemicals, acids or alkalis
you need a lightweight, watertight part
you are prototyping a product that will later be moulded in PP

When not to

Choose something else when…

you need high temperature resistance (PP – up to ~70 °C)
you need high stiffness

Design recommendations

Designing in PP Polypropylene

Design guide

Walls

Minimum 0.75 mm (down to 0.5 mm in places). Load-bearing walls – from 1.5–2 mm.

Cavities

Leave at least one 2–3 mm opening in closed cavities to remove powder; several for larger cavities.

Clearances

At least 0.5–1 mm between separate moving parts, so they do not fuse together.

Properties

PP is low density, resistant to most chemicals and to moisture, and slightly flexible. Service temperature per datasheet – up to ~70 °C. Colours: grey, black.

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