Sylomer® FR 355
Data Sheet

FR355

mixed-cell flame retardant
PU elastomer (polyurethane)mottled green

MaterialColour

Standard delivery dimension
Thickness: 25 mm / 50 mm
Mat:
0.5 m wide, 1.5 m long
Strip:
max. 1.5 m long
Other dimensions and self-adhesive equipment on request.

Material properties
Static range of use(static loads)

Test methods

2

up to 0.055 N/mm2

Dynamic range of use 2(static and dynamic loads)

up to 0.076 N/mm2

Load peaks 2(occasional, brief loads)

up to 2.0 N/mm2

Mechanical loss factor= 0.28

DIN 53513 1

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

Compression set<5%EN ISO 1856 1

50 % deformation, 70 °C, 22 h, 30 min after removal of load

Min. tensile stress at rupture

0.35 N/mm

Min. tensile elongation at rupture

approx. 70 % deformation

2

EN ISO 527-3/5/100

130 %EN ISO 527-3/5/100

Temperature range-30 up to 70 °C

Flammability

S4/SR2/ST2

short term higher temperatures possible

HL3
E12CommentDIN 54837

evaluation with DIN 5510-2

DIN EN 45545-2
DIN EN ISO 11925-2

requirements for R10classification compliant with DIN EN 13501-1

Measurement/evaluation in accordance with the relevant standard
Values apply to shape factor q = 30.10

Quasi-static load deflection curvemeasured with a loading rate of
0.0055 N/mm2/s.

12,5 mm
25 mm

0.08

50 mm
0.06

0,055 N/mm20.040.02

Static range of use
Dynamic range of use

Specific load in N/mm2

Load deflection curve

Testing between flat steel-plates;
recording of the 3rd loading; testingat room temperature.
Shape factor q = 3001

2345678910Einfederung in mmFig. 1: Quasi-static load deflection curve for different bearing thicknesses

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 inglossary. Further characteristic values on request.

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

Static range of use
2.5

Quasi-static modulus of elasticity as tangential
modulus from the load deflection curve. Dynamic modulus of elasticity from sinusoidal excitation with a velocity level of 100 dBv re. 5 · 10-8 m/s
corresponding to a vibration amplitude of0.22 mm at 10 Hz and 0.08 mm at 30 Hz.

0.055 N/mm2
2.030 Hz
10 Hz

1.5

1.0

Measurement in accordance with DIN 53513

Quasi-static0.5

Shape factor q = 3000.01

0.02 0.03 0.04 0.05 0.06 0.07 0.08 0.09 0.10
Specific load in N/mm2Fig. 2: Load dependency of the static and dynamic modulus
of elasticity

0.1012,5 mm0.0825 mm
50 mm

0.06

0,055 N/mm20.040.02

Static range of use
Dynamic range of use

Specific load in N/mm2

Natural frequencies
Natural frequencies of a vibratory system with asingle degree of freedome, consisting of a mass
and an elastic bearing made of Sylomer® FR 355
on a rigid surface.
Parameter: thickness of the Sylomer® bearing
Shape factor q = 308101214161820 222426 28 30
Natural frequency of the system in Hz

Relative deflection in % of thickness
with unstressed assay

Static creep behaviour
25

Deformation under consistent loading.
full load

20

Parameter: permanent static load
15

Shape factor q = 3
half load

1051 month

1 year10 years

00 1 2 3 4 5 6 7 10100

1,000

10,000Period of loading in days
Fig. 4: Deformation under static load depending on time

DB SR FR 355 en © Copyright by Getzner Werkstoffe GmbH l 07-2023
We reserve the right to amend the data.

Fig. 3: Natural frequencies for different bearing thicknesses