Abstract
Abstract In a given application trim parts are attached to autobody surfaces by a tape comprising a neoprene core double-faced with poly(buty1 acrylate) adhesive. Trim parts are received in automotive assembly plants with one side of the tape adhered in place and the other side protected by a release strip which is removed before use. The trim piece is applied with momentary pressure (0.1 MPa) from a roller to insure intimate contact. Initial adhesion must be sufficient to hold the trim part in place; functional attachment of the trim part depends on the tape adhesive for the duration of the car's use. Manufacturer's specifications do not provide for sanding of the painted surface prior to application of the trim part. It was necessary to reformulate the enamel to accommodate this by providing good adhesion at 30 minutes at 250°F and 60 minutes at 275°F conditions and to match the unsanded adhesion properties of a competitive product.
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