Vorgeformte Dichtkappe und ihre Anwendung.

摘要

A pre-cast dome-like shell (20) is loaded with a predetermined amount of curable sealant (31). The sealant and dome are similar in composition. The dome (20) is pressed over the exposed end o fa fastener (10). An elastic portion (24) of the shell can expand, thereby increasing the internal volume of the shell (20) to accommodate small variations in sealant (31) amount. A close fit (31) between the shell and fastener, combined with an adequate shell wall, insure proper shell orientation and barrier thickness.