Polypropylene material for 3D printing

General properties

Material type

PP co-polymer

Dedicated for

Lisa PRO, Lisa X

Software

Sinterit Studio Advanced

Material refreshing ratio¹

50%

Nitrogen needed

Colour

Grey

Mechanical properties

Tensile Strength

19,3 MPa

PN-EN ISO 527-1:2012

Tensile modulus (Young)

820 MPa

PN-EN ISO 527-1:2012

Flexural Strength

25.6 MPa

PN-EN ISO 178:2011

Impact strength (Charpy – unnotched)

30 kJ/m2

PN-EN ISO 179-1:2010

Thermal properties

Melting point

135 °C

PN-EN ISO 11357-3:2018

Heat deflection temperature at 1.8 MPa / 0.45 MPa

50 / 85 °C

PN-EN ISO 75-2:2013-06

1 Refresh ratio is the amount of refreshing powder that is required to be mixed after the printing with unsintered material.

Information provided within this document shows values for reference and comparison only. Parameters presented in this specification are subject to change without notice. Final part properties may vary based on a printed part design and orientation, material handling as well as printing environment (humidity and temperature). The manufacturer is responsible for validation whether the printout is accurate and fit for the intended purpose.

FULL SPECIFICATION SAFETY SHEET

Compatibile with:

Philippe Bendel

Additive Manufacturing Development Leader – Somfy

The main reason Somfy reached out for the SLS technology from Sinterit was productivity. Printing many pieces in one batch was a game-changer

SEE CASE STUDY

Alec Bialek

Head of Jetson’s R&D

When we look at Lisa’s line of printers, or Sinterit at general compared to other companies, the two major things that we liked were the materials, that are open source, so we are not locked into one brand […]. We are able to look around the market and use a material that works best for the part.

SEE CASE STUDY

Rigo Herold

Professor Dr.-Ing., Zwickau University in Germany

It was the best choice for me to fulfill all requirements: possibility to print complex structures, price, speed, reliability.

Maurice Briggs

Director at Lazerthrust

Sinterit LISA is the most accessible means to produce precise constraint-free solutions to modern problems. The technology does what it says on the tin and the team at Sinterit is dedicated to working with their customers to achieve their objectives.

Peter Benthues

H. Gautzsch Firmengruppe

For a company at the beginning of an investigation, support from, and discussion with the technology experts is extremely beneficial. The LISA is one of the few economically feasible solutions in the first stages of any AM Strategy. At lower volumes, it is a perfect solution.

SEE CASE STUDY

Lluís Llenas

Regner

The FFF and SLA parts are a good choice to get a physical impression of the designs and to assemble rough prototypes. But when it comes to producing reliable prototypes to be verified in our fatigue tests or to send functional samples to our customers for validation, SLS is the only acceptable choice.

SEE CASE STUDY

Walter Pucheanu

R&D Technician
Department of Chemical and Biological Engineering (CBI) / University of Erlangen–Nuremberg

The print quality of the Lisa PRO is impressive.

SEE CASE STUDY

Sean Higgins

Nabson Inc.

In order to keep up with our production demand, we have been operating the Lisa PRO almost 7 days a week for the past couple of months, without incident, and produced over 1500 sleeves.

SEE CASE STUDY

Comparison table

Rigid
Elastic

PA12 Smooth

PA11 Onyx

PA 11 ESD

PA 11 CF

PA12 Industrial

Cost-efficent rigid polyamide. Best surface quality

Great mechanical and impact resistance. High elongation at break

ESD material for cases. Bio-sourced material

One of the strongest and most versatile materials available on the powder market dedicated to SLS printing technology

A high resistance nylon 12 with very good dimensioning accuracy of prints

KEY FEATURES

Material base

Polyamide 12

Polyamide 11

Polyamide 12

Intended for

Lisa, Lisa Pro, Lisa X

Lisa Pro, Lisa X

Lisa X

Software

Sinterit Studio Basic

Sinterit Studio Advanced

Sinterit Studio Basic

FUNCTIONS

Stiff/rigid

Non-rigid / durable-tough

High-temperature resistance

High elongation

High-impact strength

Surface Finish

Color

Navy Grey

Black

Grey

Black

Grey mat

APPLICATIONS

Production parts

Snap-fits / Living Hinges

Automotive design

Medical applications

Jigs / fixtures / tools

Visual aid

GENERAL PROPERTIES

Refresh Ratio¹

22%

33%

60%

40%

30%

Nitrogen needed

Yes

MECHANICAL PROPERTIES

Tensile Strength

32 MPa

48 MPa

46 MPa

81 [MPa]

52.3 MPa

Tensile modulus (Young)

1470 MPa

1680 MPa

1850 MPa

2950 [MPa]

1840 MPa

Flexural Strength

47 MPa

62 MPa

56 MPa

100 [MPa]

60.6 MPa

Flexural Modulus

1160 MPa

1420 MPa

1240 MPa

3050 [MPa]

1380 MPa

Elongation at Break

10%

55%

27%

24.5%

7.8%

Impact strength Charpy method – unnotched

179+

114

29.5

Shore Hardness in scale

D74

D76

D81

D75

THERMAL PROPERTIES

Melting point

185 °C

200 °C

204 °C

197 °C

184.4°C

Heat deflection temperature (HDT A/B)

68 °C

47 °C

103 °C / 171 °C

170 °C / 191 °C

N/A

SEE POWDER

Flexa Black

Flexa Soft

Flexa Bright

Flexa Performance

Rubber material for prototypes. Standard material for TPU parts.

Softest material for SLS. Pleasant-to-touch rubber

Visual prototypes can be dyed. Best elongation rubber

New TPU with high strength and flexibility, ideal for use in gaskets, flexible joint covers, vibration dampers

KEY FEATURES

Material base

TPU

Intended for

Lisa, Lisa Pro

Lisa Pro, Lisa X

Lisa X

Software

Sinterit Studio Basic

Sinterit Studio Advanced

FUNCTIONS

Elastomeric / rubber-like

High elongation

Surface Finish

Color

Grey

Light Grey

Oyster White

APPLICATIONS

Production parts

Automotive design

Medical applications

Gaskets, seals and hoses

Footwear

Visual aid

GENERAL PROPERTIES

Refresh Ratio¹

0%²

Nitrogen needed

MECHANICAL PROPERTIES

Tensile Strength

3.7 MPa⁴

1.8 MPa

10 MPa

5 MPa

Elongation at Break

136%

137%

318%

100%

Shore Hardness in scale

A70/A90³

A45/A58³

A79

A81-86

THERMAL PROPERTIES

Softening point (Vicat method type A50, 10N)

67.6 °C

60.0 °C

75.1 °C

–

Melting point

160 °C

150 °C

160 °C

–

SEE POWDER

1 Refresh ratio is the amount of refreshing powder that is required to be mixed after the printing with unsintered material.rn2 Flexa materials has 100 [%] of usability. Although to keep the parameters of printouts as high as possible, we recommend adding 10% of fresh powder each timern3 Depending on printing settings and the designrn4 It might need additional refresh with 50% in case of drop of surface quality (every few to over a dozen printouts).rnrnInformation provided within this document are average values for reference and comparison only. Parameters presented in this specification are subject to change without notice. Final part properties may vary based on printed part design, print orientation and material handling.

Good

Better

Best

FAQ

How should I store the printing powder?

Store the powder at room conditions ( ~23°C and 50% humidity – the lower humidity the better)
Always store the material in a sealed dry box/container.
Do not leave the container open.
Clean the machine directly after printing and store the material immediately after removing the print cake.
Do not let the powder stay in the printer for more than a couple hours.
Put a few silicone absorbers in the container (but don’t add them to the printer)

Contact Sinterit support with your questions.

How are the powders different?

The differences between the powders are described in the table below.

SEE COMPARISON TABLE

What is the difference between “Fresh” powder and “Starter powder”?

Starter powder is basically a print-ready powder.

In Sinterit we distinguish three powder conditions: print-ready, used, and fresh.

Used is a type of powder that you get after the printing, present in overflow bin or remaining after printout cleaning.

Fresh is a type of powder that is being used for refreshing the powder. After mixing this powder with used powder you will receive print-ready.

Print-ready is a type of powder that you can simply pour into the printer and start printing.

Although printing using Fresh is possible it’s not economically optimal therefore Sinterit printers are optimized for using a refreshed (print-ready) powder.

Why do I need an ATEX vacuum cleaner to clean powder?

SLS polyamide powder used for 3D printing is considered particulate matter because of its size. Polyamide powder particles are generally 40 micrometers or smaller. If vacuumed in an ordinary vacuum cleaner, the powder could cause an explosion.

Such materials are subject to labor regulations on air quality and occupational safety. The procedures call for appropriate maintenance of powder at work. Only certified industrial vacuum cleaners should be used to clean such materials. More information about the ATEX Vacuum cleaner can be found here.

Contact Sinterit support with your questions.

Is Polypropylene a “special tasks” material?

It can certainly be said so. PP exhibits excellent chemical resistance, which is why polypropylene components are often found in chemical and pharmaceutical laboratories. Due to its low density, it is a buoyant material, and after use, it can be recycled.

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Pricing

Below there are approximate costs for some example models.

Be aware that the quotation assumes that there is only one piece printed. In SLS technology, the cost per part will be much lower with a higher number of elements printed at once.

Flexible
Standard

Model

Dimensions

PA12
Smooth

PA11
Onyx

Flexa
Grey

Flexa
Soft

TPE

Below

Model volume:

Total print height:

6.82 cm

Dimensions:

65 x 65 x 63 mm

51,30 €

Crank

Model volume:

28.12 cm^3

Total print height:

6.82 cm

Dimensions:

65 x 65 x 63 mm

49,90 €

Derailleur

Model volume:

28.12 cm^3

Total print height:

6.82 cm

Dimensions:

65 x 65 x 63 mm

71,80 €

Driller housing

Model volume:

28.12 cm^3

Total print height:

6.82 cm

Dimensions:

65 x 65 x 63 mm

157 €

Model

Dimensions

PA12
Smooth

PA11
Onyx

Flexa
Grey

Flexa
Soft

TPE

Crank

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

51,30 €

Crank

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

51,30 €

Crank

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

51,30 €

Crank

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

51,30 €

Crank

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

51,30 €

Crank

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

Model volume:

28.12 cm^3

51,30 €

Polypropylene (PP)

Polypropylene (PP)

Functions:

Applications:

Reusing the powder in a simple and cost-efficient way.

Watch webinar

Sample print prices

Specification

General properties

Mechanical properties

Thermal properties

Philippe Bendel

Additive Manufacturing Development Leader – Somfy

Alec Bialek

Head of Jetson’s R&D

Rigo Herold

Professor Dr.-Ing., Zwickau University in Germany

Maurice Briggs

Director at Lazerthrust

Peter Benthues

H. Gautzsch Firmengruppe

Lluís Llenas

Regner

Walter Pucheanu

R&D Technician Department of Chemical and Biological Engineering (CBI) / University of Erlangen–Nuremberg

Sean Higgins

Nabson Inc.

Comparison table

PA12 Smooth

PA11 Onyx

PA 11 ESD

PA 11 CF

PA12 Industrial

KEY FEATURES

FUNCTIONS

APPLICATIONS

GENERAL PROPERTIES

MECHANICAL PROPERTIES

THERMAL PROPERTIES

Flexa Black

Flexa Soft

Flexa Bright

Flexa Performance

KEY FEATURES

FUNCTIONS

APPLICATIONS

GENERAL PROPERTIES

MECHANICAL PROPERTIES

THERMAL PROPERTIES

Knowledge

Order sample model

See also powders:

Polypropylene (PP)

PA12 Onyx

PA11 ESD

FAQ

How should I store the printing powder?

How are the powders different?

What is the difference between “Fresh” powder and “Starter powder”?

Why do I need an ATEX vacuum cleaner to clean powder?

Is Polypropylene a “special tasks” material?

Need more information? Contact us

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R&D Technician
Department of Chemical and Biological Engineering (CBI) / University of Erlangen–Nuremberg