SRSylomer SR 850 850
Data Sheet®

MaterialColour

mixed-cell PU elastomer(polyurethane)turquoiseStandard Sylomer® range
Static range of use
SR1200Standard 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 longSR
850

0.85 N/mm2

SR
450
SR
220

Other dimensions, punched and molded parts on request.

SR
110

Range of use

Compressive load

Deformation

SR55

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)

SR42

up to 0.85 N/mm2approx. 10 %SR
28

up to 1.3 N/mm2approx. 20 %SR
18

up to 6.0 N/mm2

approx. 45 %

SR
11
10

Material properties
Mechanical loss factor

0.11

Rebound resilience
Compression hardness 3
Compression set2

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 0.85 N/mm227.23 N/mm

DIN ISO 53513 1
10.84 N/mm

Dynamic shear modulus

1.15 N/mm2

DIN ISO 1827 1

Min. tensile stress at rupture

2.30 N/mm2

EN ISO 527-3/5/500 1

150 %EN ISO 527-3/5/500 1

Abrasion 2
Coefficient of friction (steel)
Coefficient of friction (concrete)≤ 300 mm3
0.5

DIN ISO 1827

at specific load of 0.85 N/mm2, 10 Hz
at a pretension of 0.85 N/mm2
at a pretension of 0.85 N/mm2, 10 Hz

DIN ISO 4649 1load 10 N

Getzner Werkstoffedry, static friction

0.7Getzner Werkstoffedry, static friction> 1010 Ω·cm

DIN EN 62631-3-1 1

dry

Thermal conductivity

0.13 W/(mK)DIN EN 12667

Temperature range-30 °C to 70 °C

Specific volume resistance

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
1

Static shear modulus

Min. tensile elongation at rupture

1DIN 53513 1

EN ISO 844 1

2class E0.010.001
Specific load in N/mm2

Comment60 %11.08 N/mm2

0.1

Test methods

0.85 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 wellas 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SRSylomer SR 850 850®

Specific load in N/mm2

Load deflection curve
1.612.5 mm

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

25 mm

1.4

37.5 mm
1.250 mm0.85 N/mm2

Static range of use

0.80.60.40.2

Dynamic range of use

1.0Testing between flat and plane-parallel steel plates, recording of 3rd load,with filtered starting range in accordance with ISO 844, testing at roomtemperature.
Shape factor q = 30012345678910Deflection in mm

Fig. 1: Quasi-static load deflection curve for different bearing thicknesses

Modulus of elasticity
Dynamic range of use
Modulus of elasticity in N/mm2

Static range of use
240.85 N/mm222

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 at10 Hz and 0.08 mm at 30 Hz.

201816141230 Hz

1010 Hz8Quasi-static

Measurement in accordance with
DIN 53513

64

Shape factor q = 32000.2

0.4

0.6

0.8

1.0

1.2

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

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21.4
1.6
Specific load in N/mm2

Specific load in N/mm2

Natural frequencies
1.6

Natural frequencies of a vibratory
system with a single degree of freedome, consisting of a mass and anelastic bearing made ofSylomer® SR 850 on a rigid surface.

1.41.2

1.00.8

Static range of use

25 mm
0.637.5 mm
0.450 mm
0.2

Dynamic range of use

0.85 N/mm212.5 mm

Parameter: thickness ofthe Sylomer® 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
10090

Reduction of the transmitted mechanical vibrations by implementation of an elastic bearing consistingof Sylomer® SR 850 based on a stiff
subgrade.

-40 dB/99 %-35 dB/98 %80-30 dB/97 %-25 dB/94 %70-20 dB/90 %60-15 dB/82 %50Parameter: factor of transmission
in dB, isolation rate in %-10 dB/69 %40-5 dB/44 %300 dB/0 %20100510152025
Natural frequency of the system in Hz

Fig. 4: Factor of transmission and isolation rate

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3

Change in deflection in %Specific load in N/mm2

Influence of the shape factor
The graphs show the material properties at different shape factors.
1.00

0.85

0.70

0.55

140 %
120 %
100 %
80 %
60 %
40 %
20 %

0.40
0%
0.25-20 %0.3

136Shape factor

0.3

Change in natural frequencies in %

0%
-10 %
-20 %
-30 %

10 %0%

-10 %

-20 %

-40 %
-30 %
-50 %
-40 %

-60 %
0.3

13

6
Shape factor

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

40.3

13

6
Shape factor

Fig. 8: Natural frequency 4 in relation to the shape factor

Reference values: specific load 0.85 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

DB SR 850 en © Copyright by Getzner Werkstoffe GmbH l 06-2019
We reserve the right to amend the data.

Change in dynamic modulus of elasticity in %10 %3Fig. 6: Deflection 4 in the relation to the shape factor

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

20 %1