Corrosion, sound, and vibration-proof method for metal structure

Plastic and nonmetallic article shaping or treating: processes – Direct application of fluid pressure differential to... – Starting material is nonhollow planar finite length preform...

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427272, 427282, B05D 132

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active

055408800

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.

REFERENCES:
patent: 3137747 (1964-06-01), Kline
patent: 3484510 (1969-12-01), Corazza
patent: 3558751 (1971-01-01), Santelli
patent: 3740259 (1973-06-01), Carl et al.
patent: 4261775 (1981-04-01), Tschudin
patent: 4714633 (1987-12-01), Horiki et al.

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