Corrosion, sound, and vibration-proof method for metal structure
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United States of America Patent
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Jul 30, 1996
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N/A
app pub date -
May 6, 1994
filing date -
Aug 12, 1987
priority date (Note) -
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Abstract
In an operation wherein a metal structure has applied thereto a coating of visco-elastic material is a method of corrosion, sound and vibration-proofing and wherein selected portions or surfaces of the metal structure are protected from having the visco-elastic material applied thereto by placing a masking member on said selected portions or surfaces, the improvement which comprises employing as said masking members thin, thermoplastic foam-walled masking members, such as are manufactured by vacuum forming thermoplastic sheet or by expansion molding of expandable thermoplastic beads.
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