Method of repairing breaks in sheet material

Details Method of repairing breaks in sheet material Method of repairing breaks in sheet material

1984-05-29

1985-07-02

Dawson, Robert A.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156279, 156280, 1563309, 264 36, 427140, 427189, 427203, 428 63, B32B 3500

Patent

active

045266360

ABSTRACT:
A method of repairing breaks in plastic sheet members such as those used on dashes of automobiles. The abutting edges of the crack formed at the break are coated with a liquid cyanoacrylate adhesive. The crack is filled with a particulate material, preferably hardened polyurethane foam or graphite which has been ground to a particle size corresponding roughly to that of common table salt. The particulate filler is soaked with the liquid cyanoacrylate adhesive and the liquid is then dried. For cracks of substantial depths, several layers of filler soaked with the adhesive may be utilized to completely fill the crack. After the filler composition has completely hardened and the repair smoothed by sanding, the immediate zone may be textured by spraying with a liquid vinyl lacquer. When the lacquer is dry, the region may be painted to blend with the remainder of the member.

REFERENCES:
patent: 2951773 (1960-09-01), Helle et al.
patent: 3478791 (1969-11-01), Elmendore
patent: 3920497 (1975-11-01), Speer
patent: 4133913 (1979-01-01), Moore

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