Polyurethane raw materials and sys - PUR-Internet - Bayer
Polyurethane raw materials and sys - PUR-Internet - Bayer
Polyurethane raw materials and sys - PUR-Internet - Bayer
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Bayflex ® RIM<br />
for exterior body parts<br />
Bayflex ® RIM is a moulded micro-cellular or solid<br />
polyurethane material usually reinforced with fillers.<br />
It is used for painted body parts, such as:<br />
� Bumper covers � Spoilers<br />
� Side panels � Wings<br />
� Rocker panels � Door panels<br />
22 23<br />
The material permits complex shapes with long flow<br />
paths. New component designs provide for wall<br />
thicknesses of 1.5 to 2.5 mm. Bayflex ® RIM st<strong>and</strong>s<br />
out from other plastics due to its special combination<br />
of properties:<br />
� Light weight<br />
� Rigid but elastic<br />
� Impact resistance at low temperatures<br />
� Low coefficient of thermal expansion<br />
� Dimensional stability at relatively high coating<br />
temperatures<br />
Bayflex ® for modular window<br />
encapsulation<br />
Paintable or light-resistant Bayflex ® is used to encapsulate<br />
windows <strong>and</strong> sun roofs. Due to its excellent flowablility<br />
<strong>and</strong> low processing pressures as compared<br />
with injection moulding, the material is particularly<br />
suitable for large, curved windows.<br />
Bayflex<br />
Modular window encapsulation<br />
Applications Valance<br />
panels<br />
Rocker panels<br />
side mouldings<br />
wings<br />
weather<br />
stabilised<br />
formulation<br />
weather<br />
stabilised by<br />
in-mould coating<br />
® 180 Bayflex ® 190 Bayflex ® Bayflex ®<br />
WR 40-6 MP 10.000<br />
Wings<br />
on line paintable<br />
to 190 ∞C<br />
Wollastonite<br />
in the elastomer (%)<br />
KMilled fibre MF 7980<br />
in the elastomer (%)<br />
— — 20–25 — —<br />
17 24 — — —<br />
Density DIN 53420 (g/m 3 ) 1,20 1,25 1,25 – 1,30 1,00 1,00<br />
Shore A hardness DIN 53505 — — — 85 A 36 D<br />
Tensile strength<br />
DIN 53504 (MPa)<br />
Elongation at break<br />
DIN 53504 (%)<br />
Flexural modulus<br />
DIN 53457 (MPa)<br />
Sag 1 h/ 160 ∞C/100 mm<br />
overhang (mm)<br />
Low temperature impact strength<br />
Dynstat (-30 ∞C) DIN 53435 (kJ/m2 Tear propagation strength<br />
DIN 53515 (kN/m)<br />
)<br />
25 25 25 15 18<br />
>130 >80 30 – 50 >230 >280<br />
— — — 22 33<br />
1.200 1.600 1.700 – 2.000 — —<br />
4 2 1 — —<br />
>20 >15 ≥10 — —<br />
Coefficient of linear thermal<br />
expansion II<br />
DIN 53752 (10<br />
55 – 65 40 – 50 ≥33 — —<br />
-6 m/m K)<br />
Recommended moulded<br />
wall thickness (mm)<br />
≥2,2 * ≥1,8 ≥2,5 — —<br />
* ( 1.5 mm, back-filled with EA foam in direction of fibres
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