SRSylomer SR 450 450
Data Sheet®

MaterialColour

mixed-cell PU elastomer(polyurethane)
greyStandard Sylomer® range
Static range of use
SR
1200

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

SR850
SR
450

0,45 N/mm2SR
220

Other dimensions, punched and molded parts on request.

SR110

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 0.45 N/mm2

approx. 10 %SR
28

up to 0.70 N/mm2

approx. 20 %SR
18up to 5.0 N/mm2

approx. 60 %

SR
1110

Material properties
Mechanical loss factor

0.12

Rebound resilience
Compression hardness 3
Compression set 2
Static modulus of elasticity

3

Dynamic modulus of elasticity 3

temperature-, frequency-, specific load- and amplitude-dependent
160 %EN ISO 8307

0.43 N/mm2

EN ISO 844 1

at 10 % linear compression, 3rd load cycle< 5%EN ISO 1856 1

50 % deformation, 23 °C, 72 h, 30 min after removal of loadat specific load of 0.45 N/mm223.36 N/mm

5.42 N/mm2

DIN ISO 53513 1
DIN ISO 1827

Dynamic shear modulus

0.82 N/mm2

DIN ISO 1827 1

Min. tensile stress at rupture

1.70 N/mm2

EN ISO 527-3/5/500 1

160 %EN ISO 527-3/5/500 1

Coefficient of friction (concrete)≤ 400 mm30.51

at specific load of 0.45 N/mm2, 10 Hz
at a pretension of 0.45 N/mm2
at a pretension of 0.45 N/mm2, 10 Hz

DIN ISO 4649 1load 10 N

Getzner Werkstoffedry, static friction

0.7

Getzner Werkstoffedry, static friction> 1010 Ω·cm

DIN EN 62631-3-1 1

dry

Thermal conductivity

0.11 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 = 32DIN 53513 1

0.58 N/mm

Coefficient of friction (steel)

0.01
0.001
Specific load in N/mm2Comment

Static shear modulus

Abrasion 20.1

Test methods

2Min. tensile elongation at rupture

11

class E

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 450 450®

Specific load in N/mm2

Load deflection curve
0.9

Quasi-static load deflection curvemeasured with a loading rate of0.045 N/mm2/s.

12.5 mm0.825 mm37.5 mm
50 mm

0.7

0.50.45 N/mm2

Static range of use

0.4

0.3

0.20.1

Dynamic range of use

0.6Testing 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 = 30012345678910Deflection in mm

Fig. 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
12Quasi-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.

0.45 N/mm210830 Hz610 Hz

4Measurement in accordance with
DIN 53513

Quasi-static

2Shape factor q = 3

000.1

0.2

0.3

0.4

0.5

0.6

0.7

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

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20.8
0.9
Specific load in N/mm2

0.9Natural frequencies of a vibratory
system with a single degree of freedome, consisting of a mass and anelastic bearing made ofSylomer® SR 450 on a rigid surface.

0.80.70.60.50.45 N/mm212.5 mmStatic range of use

0.425 mm0.337.5 mm
0.250 mm

0.1

Dynamic range of use

Specific load in N/mm2

Natural frequencies

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
100Reduction of the transmitted mechanical vibrations by implementation of an elastic bearing consistingof Sylomer® SR 450 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 %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 %

0.50

0.45

0.40

80%

60%

40%

0.35

20%

0.30

0%

-20%

0.25
0.3

13

0.3

6Shape factor

Change in natural frequencies in %Change in dynamic modulus of elasticity in %

0%

-10 %

-20 %-30 %

10%0%-10%-20%-30%0.3

136
Shape factor

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

0.3

136Shape factor

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

Reference values: specific load 0.45 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

-40 %

-50 %

43Fig. 6: Deflection 4 in the relation to the shape factor

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

10 %

1

DB SR 450 en © Copyright by Getzner Werkstoffe GmbH l 06-2019
We reserve the right to amend the data.

Specific load in N/mm2

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