Technical Data Sheet
Silk Filament
Silk ﬁlament is an FFF 3D printing ﬁlament, which is produced using a toughened,
high-gloss polylactic acid modiﬁed material. It oﬀers excellent bending strength andrigidity, is easy to print, and outputs a silk-like surface ﬁnish, with the ability to beprintable on various FFF 3D printers.

Features:
High glossiness/Easy to print/High rigidity

Properties:
Physical Properties

Test Method

Units

Typical Value

Density

ISO 1183g/cm³

1.25~1.26

Melt Flow Rate (MFR) (190℃/2.16Kg)

ISO 1133

g/10min

5~10Water Absorption (23℃/24h)

ISO 62%＜0.3

Tensile Strength（X-Y）

ISO 527

Mpa

45~49

Elongation at Break（X-Y）

ISO 527%10.5~12.5

Modulus of Elasticity（X-Y）

ISO 527

Mpa

1150~1250

Bending Strength（X-Y）

ISO 178

Mpa

72~75

Izod Impact Strength（X-Y）

ISO 180

KJ/m2

5~6

HDT@ 0.455 MPa(66 psi)

ISO75℃

53

Continuous Service Temperature

IEC 60216℃

50

Mechanical Properties

Thermal Properties

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Testing Specimen Printing Conditions:
Test Equipment

Guider IIs (Flashforge)

Nozzle Diameter

0.4mm

Nozzle Temperature220 °C

Printing Speed

60mm/sWall Thickness

1.2mm

Inﬁll100%

Standard Testing Specimen

Speciﬁc dimensions are shown in Attachment 1

Recommended Printing Conditions:Parameter
Nozzle Temperature

190~220℃ (220℃ recommended)

Build Platform Temperature

Room temperature~60℃ (40℃ recommended)

Build Surface Material

Tempered glass, BuildTak, Carbon ﬁber plate

Nozzle Diameter

φ0.4/0.6mm (φ0.4mm recommended)

Cooling Fan

50~100%Layer Thickness

0.12~0.3mm

Printing Speed

60~90mm/s (60mm/s recommended)

Travel Speed60~120mm/s

Ambient Temperature for Printing

Room temperature~40℃

Retraction Distance

1~2mm

Retraction Speed

30~50mm/s

Support Material

Self-supporting, PVA, BVOH

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Cautions:
In order to prevent moisture absorption and contamination, supplied packaging should
be kept closed and undamaged. For the same reason, partially used ﬁlaments should bere-sealed before storage.
Silk ﬁlament is primarily made of biodegradable material. Exposure to moisture, oxygenin the air, and UV light will accelerate its aging. In order not to aﬀect the ﬁnal printing
quality, the Silk ﬁlament after its package being opened should be used up as soon aspossible.

Disclaimer:
Since the conditions of use and applicable laws may vary from place to place and fromtime to time, customers are responsible for determining whether the products andproduct information in this document are suitable for customers to use, and ensuring that
their workplaces and methods of handling products comply with applicable laws andother government regulations. This company does not assume any responsibility orobligation for the information in this document, nor does it provide any guarantee. All
implied warranties regarding the saleability of the product or the applicability for aparticular purpose under this document are expressly excluded here.

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Attachment 1:
Testing Specimen Size and Printing Direction
150.00114.00
10.00

20.00

80.00

Zaxis

4.00

4*R25

Tensile testing specimen; ASTM D638 (ISO 527, GB/T 1040)

10.00

80.00
60.00

4.00

Zaxis

Flexural testing specimen; ASTM D790 (ISO 178, GB/T 9341)

80.00

Zaxis

10.00

45.00°

4.00

Impact direction

Impact testing specimen; ASTM D256 (ISO 179, GB/T 1043)www.ﬂashforge.com