Sylodyn® NF
Data Sheet

Material
Colourclosed-cell PU elastomer(polyurethane)
violetStandard Sylodyn® range
Static range of use

Standard delivery dimension
Thickness: 12.5 mm / 25 mm
Roll:
1.5 m wide, 5.0 m long
Strip:
up to 1.5 m wide, up to 5.0 m long

1.5 N/mm2

NF

Other dimensions, punched and molded parts on request.

NERange of use

ND

Compressive load Deformation
shape factor-dependent, values apply
to shape factor q = 3

Static range of use(static loads)

Dynamic range of use(static plus dynamic loads)

Load peaks(occasional, brief loads)

up to 1.50 N/mm2approx. 11 %up to 2.00 N/mm2

approx. 16 %up to 6.8 N/mm2approx. 30 %

NCNB

10Material properties
0.09

Mechanical loss factor
Rebound resilience
Compression hardness 3Compression set

2

Static modulus of elasticity

Dynamic modulus of elasticity 3

EN ISO 8307

EN ISO 1856

at 10 % linear compression, 3rd load cycle
125 % deformation, 23 °C, 72 h, 30 min after removal of loadat specific load of 1.50 N/mm22at specific load of 1.50 N/mm2, 10 HzDIN 53513 1

Static shear modulus

0.99 N/mm

DIN ISO 1827

Dynamic shear modulus

1.48 N/mm2

DIN ISO 1827 1

Min. tensile stress at rupture

Abrasion 25.00 N/mm

2300 %

1EN ISO 527-3/5/500

at a pretension of 1.50 N/mm2
at a pretension of 1.50 N/mm2, 10 Hz
1EN ISO 527-3/5/500 1≤ 200 mm3

DIN ISO 4649 1

load 10 N

0.7

EN ISO 8295 1

dry, static friction

Coefficient of friction (concrete)

0.7

EN ISO 8295

1dry, static friction

Coefficient of friction (wood)

0.5

EN ISO 8295 1

dry, static friction

Specific volume resistance> 1010 Ω · cm

EN IEC 62631-3-1 1

dryThermal conductivity

0.15 W/(mK)EN 12667

Temperature range-30 °C to 70 °C

Coefficient of friction (steel)

Flammability
Measurement / evaluation in accordancewith the relevant standard
The measurement is performed on adensity-dependent basis with differing
test parameters
3Values apply to shape factor q = 3
2

temperature-, frequency-, specific load- and amplitude-dependent
12

Min. tensile elongation at rupture

1Comment

EN ISO 844 1

14.94 N/mm2

class E0.010.001
Specific load in N/mm2

DIN 53513 1

70 %11.99 N/mm

0.1

Test methods

1.34 N/mm2<5%31

short term higher temperatures possible
EN ISO 11925-2

normal combustible, EN 13501-1

All information and data is based on our current knowledge. The data can be applied
for calculations and as guidelines, are subject to typical manufacturing tolerances
and are not guaranteed. Material properties as well as their tolerances can vary depending on type of application or use and are available from Getzner on request.
Further information can be found in VDI Guideline 2062
(Association of German Engineers) as well as in glossary.
Further characteristic values on request.

www.getzner.com

1

Sylodyn NF®

3.012.5 mm

25 mm

Quasi-static load deflection curvemeasured with a loading rate of
0.15 N/mm2/s.

37.5 mm

2.5
50 mm
2.0

1.5 N/mm2

Static range of use

1.5

1.00.5

Dynamic range of use

Specific load in N/mm2

Load deflection curve

Testing between flat and plane-parallel steel plates, recording of 3rd load,with filtered starting range in accordance with ISO 844, testing at roomtemperature.
Parameter: thickness ofthe Sylodyn® bearing
Shape factor q = 30012345678910Deflection in mmFig. 1: Quasi-static load deflection curve for different bearing thicknesses

Modulus of elasticity

Modulus of elasticity in N/mm2

Dynamic range of use
Static range of use
50
1.5 N/mm2403030 Hz10 Hz

Quasi-static modulus of elasticity as
tangential modulus from the load
deflection curve. Dynamic modulusof elasticity from sinusoidal excitation with a velocity level of 100 dBv
re. 5 · 10-8 m/s corresponding to avibration amplitude of 0.22 mm at
10 Hz and 0.08 mm at 30 Hz.

20

Measurement in accordance with
DIN 53513
Quasi-static

10Parameter: frequency
000.5

1.0

1.5

2.0

Fig. 2: Load dependency of the static and dynamic modulus of elasticity

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22.5
3.0
Specific load in N/mm2

Shape factor q = 3

3.0

Natural frequencies of a vibratory
system with a single degree of freedome, consisting of a mass and anelastic bearing made of Sylodyn® NF
on a rigid surface.

2.5

2.0

1.5 N/mm21.512.5 mm25 mm

1.037.5 mm
50 mm

0.5

Static range of use
Dynamic range of use

Specific load in N/mm2

Natural frequency

Parameter: thickness ofthe Sylodyn® bearing
Shape factor q = 30510152025
Natural frequency of the system in Hz

Fig. 3: Natural frequencies for different bearing thicknesses

Disturbing frequency in Hz

Vibration isolation efficiency
100Reduction of the transmitted mechanical vibrations by implementation of an elastic bearing consisting of Sylodyn® NF based on a stiff
subgrade.

90-40 dB/99 %80-35 dB/98 %-30 dB/97 %-25 dB/94 %70-20 dB/90 %60-15 dB/82 %Parameter: factor of transmission
in dB, isolation rate in %50-10 dB/69 %40-5 dB/44 %0 dB/0 %3020
100510152025
Natural frequency of the system in Hz

Fig. 4: Factor of transmission and isolation rate

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3

Change in deflection

1.8

1.5

1.2

160 %

120 %

80 %

0.9

40 %

0.6

0%

0.3

-40 %
0.3

13

0.3

6
Shape factor

Change in natural frequencies

Change in dynamic modulus of elasticity

0%

-20 %

0%

-10 %

-20 %

-60 %-30 %

-40 %
0.3

136Shape factor

Fig. 7: Dynamic modulus of elasticity 4 at 10 Hz in
relation to the shape factor

40.3

136Shape factor

Fig. 8: Natural frequency 4 at constant thickness inrelation to the shape factor

Reference values: specific load 1.50 N/mm2, shape factor q = 3

Material properties can be determined using the online calculation program FreqCalc.
The program can be accessed via www.getzner.com (registration necessary).

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46Shape factor

10 %-40 %-80 %3Fig. 6: Deflection 4 at constant thickness in relation tothe shape factor

Fig. 5: Static range of use in relation to the shape factor

20 %

1

DB Sylodyn NF en © Copyright by Getzner Werkstoffe GmbH l 03-2022
We reserve the right to amend the data.

Static range of use in N/mm2

Influence of the shape factor
The graphs show the material properties at different shape factors.