Field Evaluation of Down-Gauged High Performance RIM Fascia Polymers 930539
Reducing the wall thickness of automotive fascia offers cost and weight savings over those manufactured today. New high performance RIM polyurethane/urea and polyurea polymers with improved mechanical properties over conventional systems make down-gauging possible while maintaining specified performance.1 Adding low cost, high surface quality fillers to these polymers provides enhanced dimensional stability in fascia at reduced wall thickness, thus meeting ever increasing demands for lower cost and high quality.
This paper describes validation studies of filled RIM fascia down-gauged 22% to 3.0 mm wall thickness and compares them to conventional fascia moulded at nominal 3.9 mm wall thickness. High performance polyurethane/urea, polyurea, and conventional polyurethane/urea each incorporating wollastonite, mica, or milled glass were tested. The data include “on-car position” moisture stability, painted impact at low temperature, and material processing.
Citation: James, A., Dowen, J., and Rodriguez, M., "Field Evaluation of Down-Gauged High Performance RIM Fascia Polymers," SAE Technical Paper 930539, 1993, https://doi.org/10.4271/930539. Download Citation
Author(s):
Allan James, James A. Dowen, Marco E. Rodriguez
Affiliated:
Dow Chemical Canada,Inc., General Motors Corp.
Pages: 8
Event:
International Congress & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Also in:
SAE 1993 Transactions: Journal of Materials & Manufacturing-V102-5
Related Topics:
Bumpers, fasciae and grilles
Polymers
Glass
Coatings, colorants, and finishes
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