Polyurethane raw materials and sys - PUR-Internet - Bayer

Baydur ® STR: lightweight
mouldings for interior and
exterior applications
Baydur ® STR is a tough, rigid polyurethane in foamed
or solid form which is produced in moulds in combination
with milled fibres or fibre mats. Various reinforcing
materials can be combined to form composites,
and anchoring elements, hinges and even pressure-sensitive
decorative facings can be integrated in a
single operation. This gives a wide range of application
options and has major advantages for economical
production through the integration of structural elements
and the reduction of manufacturing steps.
The mouldings offer:
� Very good mechanical strength with low weight
� Dimensional stability
� Low water absorption.
14 15
Baydur ® STR
Applications Trim panels Instrument
panel supports
Density
DIN 53420 (kg/m3 )
Typical applications include:
� Instrument panel supports
� Consoles and door panels
� Roof panels and seat trim
� Spoilers
� Seat shells and backrests
� Spare-wheel wells and covers
� Luggage compartment floors
� Engine shrouds
500 1.000
Weight per unit area of glass mat 300 600
(g/m 2 )
Specimen thickness
(mm)
Flexural modulus
DIN 53423 (MPa)
Flexural strength
DIN 53423 (MPa)
Impact resistance
DIN 53453 (kJ/m2 )
Elongation at break
DIN 53455 (%)
Heat deflection temperature,
B test, DIN 53461 (˚C)
4 3
1.100 3.600
30 95
18 40
2,1 2,2
140 200