| 摘要 |
<p>A recoverable wrap-around sleeve 4 secured by rails and channel 1,2 and which is used to seal a substrate can be re-entered and re-sealed in the following way. A central section of the sleeve is removed, after cutting away the rails and channel, leaving butts of the sleeve on the substrate. A new sleeve is then recovered across the butts of the old sleeve. If the new sleeve is to seal properly there should be no leak path between the old butts and the new sleeve. In order to avoid such a leak path, any gap between the remnants of the old rails must be filled with adhesive. This is achieved by providing means, such as deformations 7, at the base of one of the rails 1 or on a flap 3 adjacent one of the rails 1 which allows flow of adhesive 8 between the rails when the original sleeve 4 is installed.</p> |
