BASF and Italian specialist company STR Automotive have jointly developed production-ready vehicle parts using the new Elastolit R 8819Lightweight.
Compared to parts produced using conventional PU-RRIM material, the parts offer a significant weight reduction.
Using the new Elastolit product, part thickness can be reduced from 3mm to 2.5mm, without any detrimental effects on processing or mechanical properties.
Thinner versions of parts such as bumper covers, produced using the short-fibre reinforced material have been found to be unable to pass the climate change test.
Using Elastolit, the parts demonstrate high temperature resistance, stiffness and ‘very good’ impact strength.
“The improved performance of the matrix material allows the designer to create a noticeably thinner component, without having to accept limitations in quality”, explained Jürgen Schneider from BASF Polyurethanes.
Depending on requirements and the application, Elastolit R 8819Lightweight can be combined with different filler materials, including standard fibre for components such as rear bumpers, or a mineral/carbon fibre combination for vertical components with low thermal expansion coefficient, such as side panels.
Also, a combination of carbon fibre and light hollow glass spheres can be used to produce components which require further weight reduction.