摘要：

A heat recoverable sleeve is disclosed which is capable of being installed on a longitudinal member without access to a free end. The sleeve comprises a flexible sheet of heat recoverable material having edges which may be overlapped and which have been coated with a contact adhesive. Chloroprene based contact adhesives are disclosed. The coated sheet is wrapped about the longitudinal member and the edges of the sheet are caused to adhere together by the contact cement. In order to prevent the overlapping edge from peeling back during recovery and opening the joint, a restraining member such as a sheet of metallic foil may be adhered to the overlapping edge and the region of the sleeve adjoining the underlapping edge. Alternatively, peeling back may be prevented by cross-linking the overlapping edge. Heating of the sleeve causes it to shrink onto the longitudinal member to form a secure closure.

展开