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Comparison of Preformed Acoustic Baffles and Two-Component Polyurethane Foams for Filling Body Cavities
ISSN: 0148-7191, e-ISSN: 2688-3627
Published April 30, 2001 by SAE International in United States
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A variety of expandable sealants are used to fill vehicle body cavities to impede noise, water, air, and dust from entering (and exiting) the passenger compartment. This paper compares three sealant technologies used for filling body cavities. The technologies are rubber-based elastomeric preformed parts; thermoplastic elastomeric preformed parts, and two-component polyurethane that is foamed-in-place directly in the vehicle body cavity. The following comparisons are made between the three technologies: application methods and issues, cost, material properties and acoustical performance.
CitationLilley, K., Seifferlein, E., and Zalobsky, A., "Comparison of Preformed Acoustic Baffles and Two-Component Polyurethane Foams for Filling Body Cavities," SAE Technical Paper 2001-01-1460, 2001, https://doi.org/10.4271/2001-01-1460.
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