Material
SLS/MJF Polypropylene
Polypropylene is a lightweight, flexible, chemically resistant plastic with good fatigue resistance. It is suitable for durable functional parts that bend repeatedly or contact fluids.
Manufacturing processes
About
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.
Technical Details
- Accuracy
- ±0.3% (lower limit of ±0.3 mm)
- Density
- 0.89 g/cm³
- Min. wall thickness
- 0.8 mm
Technical Properties
- Tensile strength
- 21.4 - 29 MPa
- Tensile modulus
- 907 - 1600 MPa
- Tensile elongation
- 14 - 20%
- Flexural strength
- 22.8 MPa
- Flexural modulus
- 698 MPa
- HDT (0.45 MPa)
- 100°C
- HDT (1.8 MPa)
- 60°C
- Default layer height
- 0.1 mm
- Default infill
- 100%
- Embossing
- min. 1.5 mm
- Engraving
- min. 1.5 mm
- Interlocking parts
- Yes
- Warping risk
- High
- Maximum printing dimensions
- 450 × 450 × 450 mm