Closed cell polyethylene joint filler.
Expandafaom is a closed-cell polyethylene joint filler for use as an expansion joint filler in brick and blockwork, isolation joints and hinge joints where a readily compressible low load transfer joint filler is required. Expandafoam is also used as back-up strips for elastomeric sealants placed in joints of concrete floors subject to foot traffic and light wheel loads. For joints subject to heavy loads or joints in water retaining structures, Hydrocell or Hydrocor should be used (see separate Technical Data Sheets).