The Development and Processing of a Thermoset Rubber Fascia Substrate 770842
Sheller-Globe has developed a paintable thermoset elastomeric substrate material designed for use in automotive fascia, sight shields, etc.
Based on an SBR/EPDM blend the material has a flexural modulus of 138 MPa (20,000). Incorporation of fiberglass and filler modifications readily permit adjustment of the flexural modulus.
A processing study of M-1078 containing 4% fiberglass established that the material is readily moldable by either compression or injection methods.
Optimum mold temperature ranges are 177° to 199°C (350-390°F) with stock injection temperatures running from 138° to as high as 150°C without scorch problems.
Correlation between Mooney viscosity and scorch data and ease of injection molding was noted.
Citation: Chen, M., Rees, J., Powell, R., and Reilly, A., "The Development and Processing of a Thermoset Rubber Fascia Substrate," SAE Technical Paper 770842, 1977, https://doi.org/10.4271/770842. Download Citation
Author(s):
M. C. Chen, J. L. Rees, R. E. Powell, A. F. Reilly
Affiliated:
Sheller-Globe Corp.
Pages: 8
Event:
Passenger Car Meeting & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Molding
Bumpers, fasciae and grilles
Glass fibers
Elastomers
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