Materials

What is the refresh rate?

It is the ratio of a minimum amount of fresh powder needed in a mixture of material used in an SLS 3D printer. A lower refresh ratio means better cost-efficiency of the material.

How does it work?

The amount of needed fresh powder is automatically calculated by our software and shown on the printer screen after the print job is finished. Just add shown amount of material into the mixing cycle of used material and you can start your next job with refreshed material

HOW TO RECYCLE DEDICATED POWDER TOOLS

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 Soft

Flexa Performance

Softest material for SLS. Pleasant-to-touch 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 Pro

Lisa X

Software

Sinterit Studio Advanced

FUNCTIONS

Elastomeric / rubber-like

High elongation

Surface Finish

Color

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

1.8 MPa

10 MPa

Elongation at Break

137%

318%

Shore Hardness in scale

A45/A58³

A79

THERMAL PROPERTIES

Softening point (Vicat method type A50, 10N)

60.0 °C

75.1 °C

Melting point

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 the humidity the better)

Always store the material in a sealed dry box/container.
Do not leave the container open.
Clean the machine right after the 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 of hours.
Put a few silicone absorbers into the container (but ensure they don’t end up in the printer when you are filling it)

What is the difference between powders?

The differences between the powders can be found in the table below.

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. Powder vacuumed in an ordinary vacuum cleaner could cause an explosion.

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

Please contact Sinterit support with your questions.

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 €

Materials

Materials

Material selection

Open parameters

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

Order sample model

Sample print prices

Standard

Performance & Special Applications

Flexible

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 Soft

Flexa Performance

KEY FEATURES

FUNCTIONS

APPLICATIONS

GENERAL PROPERTIES

MECHANICAL PROPERTIES

THERMAL PROPERTIES

FAQ

How should I store the printing powder?

What is the difference between powders?

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

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

Need more information? Contact us

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