Fireproof seal

摘要

A fireproof seal comprises >=2 concentric seal elements (11, 12) having confronting ends that are out of registration. The seal elements are adapted to be placed in use in sealing relationship with one element at least partially encircling the other. An independent claim is also included for a method for sealing a pipe in a hole formed in wall using a seal comprising applying a first seal element around the pipe adjacent to the wall, applying a second or subsequent seal element at least partially to encircle the first, and securing the resulting seal to the wall and around the pipe.