Brickfill Expansion Joint Filler is a jointing material used for brick and blockwork expansion and movement joints. A low resistance joint filler manufactured from high quality closed cell polyethene, the expansion strip is created exclusively for use with clay fired brickwork, calcium silicate brickwork, and blockwork. The roll and is simple to use and has a handy "tear-off strip" for a more straightforward application. Fully complies with all British Standards.