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Closed cell polyethylene joint filler.

Previously known as Corkjoint Jointflex.


Expandafoam 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 should be used (see separate Technical Data Sheet).

  • Back-up/bond breaker strip to support sealants
  • Bridge decks, abutments, pier hinge joints
  • Brick and blockwork in building superstructures


Technical Data Sheet

Safety Data Sheets

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