Sylomer SR 55 SR55
Data Sheet®

MaterialColour

mixed-cell PU elastomer(polyurethane)greenStandard 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 long

SR850
SR450
SR
220

Other dimensions, punched and molded parts on request.

SR110

Range of use

Compressive load

Deformation

SR
55

0.055N/mm2
shape factor-dependent, values apply
to shape factor q = 3

Static range of use(static loads)

Dynamic range of use(static plus dynamic loads)

SR42

up to 0.055 N/mm2approx. 7 %up to 0.076 N/mm2approx. 20 %SR
18

up to 2.0 N/mm2approx. 75 %SR
11Load peaks(occasional, brief loads)

SR
28

10Material properties
Mechanical loss factor

0.17

Rebound resilience
Compression hardness 3
Compression set

2

Static modulus of elasticity

Dynamic modulus of elasticity 3

EN ISO 844 1
EN ISO 1856

at 10 % linear compression, 3rd load cycle
150 % deformation, 23 °C, 72 h, 30 min after removal of loadat specific load of 0.055 N/mm22

DIN ISO 53513 1

Static shear modulus

0.11 N/mm

DIN ISO 1827

Dynamic shear modulus

0.20 N/mm2

DIN ISO 1827 1

Min. tensile stress at rupture

0.55 N/mm2

EN ISO 527-3/5/500 1

190 %EN ISO 527-3/5/500 1

Abrasion 2
Coefficient of friction (steel)
Coefficient of friction (concrete)≤ 1100 mm3

1

at specific load of 0.055 N/mm2, 10 Hz
at a pretension of 0.055 N/mm2
at a pretension of 0.055 N/mm2, 10 Hz

DIN ISO 4649 1

load 7.5 N

0.5

Getzner Werkstoffedry, static friction

0.7Getzner Werkstoffedry, static friction> 1010 Ω·cm

DIN EN 62631-3-1 1

dry

Thermal conductivity

0.06 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
3
Values apply to shape factor q = 3
2

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

Min. tensile elongation at rupture

1DIN 53513 1
EN ISO 8307

0.75 N/mm2

class E

0.01
0.001
Specific load in N/mm2

Comment

55 %0.34 N/mm

0.1

Test methods

0.06 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 asguidelines, 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

Sylomer SR 55 SR55®

0.10

Quasi-static load deflection curvemeasured with a loading rate of0.0055 N/mm2/s.

12.5 mm

0.09

25 mm
37.5 mm

0.08

50 mm

0.07
0.06

0.055 N/mm20.05
Static range of use

0.04
0.03
0.02

Dynamic range of use

Specific load in N/mm2Load 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 room
temperature.
Shape factor q = 30.01
0012345678910Deflection in mmFig. 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
1.75

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.

0.055 N/mm2
1.50

30 Hz

1.25

10 Hz

1.00
Quasi-statisch
0.75

Measurement in accordance with
DIN 53513

0.50

Shape factor q = 3

0.25

000.01

0.02

0.03

0.04

0.05

0.06

0.07

0.08
0.09
0.10
Specific load in N/mm2

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

www.getzner.com

2

0.10

Natural frequencies of a vibratory
system with a single degree of freedome, consisting of a mass and anelastic bearing made ofSylomer® SR 55 on a rigid surface.

0.09
0.08
0.07
0.060.055 N/mm20.050.04

Static range of use

12.5 mm

25 mm

0.03

37.5 mm
50 mm

0.02

Dynamic range of use

Specific load in N/mm2

Natural frequencies

Parameter: thickness ofthe Sylomer® bearing
Shape factor q = 3

0.01
0510152025
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 55 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 %Parameter: factor of transmission
in dB, isolation rate in %50-10 dB/69 %40-5 dB/44 %300 dB/0 %20100510152025
Natural frequency of the system in HzFig. 4: Factor of transmission and isolation rate

www.getzner.com

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.
0.059
0.057
0.055

0.053
0.051

40 %

30 %

20 %

10 %

0.049
0%
0.047
-10 %

0.045
0.3

13

6
Shape factor

0.3

Change in natural frequencies in %

-10 %

-20 %

10 %
5%

0%

-5 %
-10 %
-15 %

-30 %
-20 %
-25 %

-40 %
0.3

136
Shape factor

Fig. 7: Dynamic modulus of elasticity 4 at 10 Hz in
relation 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 0.055 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).

AUSTRIA — Bürs GERMANY — Berlin — Munich — Stuttgart FRANCE — Paris — Lyon JAPAN — Tokyo INDIA — Pune
JORDAN — Amman CHINA — Beijing USA — Charlotte AUSTRALIA — Melbourne
www.getzner.com
46Shape factor

DB SR 55 en © Copyright by Getzner Werkstoffe GmbH l 06-2019
We reserve the right to amend the data.

Change in dynamic modulus of elasticity in %0%

3Fig. 6: Deflection 4 in the relation to the shape factorFig. 5: Static range of use in relation to the shape factor

10 %1