Wherever structural components have to be connected in a force-locking and water-impermeable manner, the PENTAFLEX® Modul in combination with FERBOX® reverse bending connectors is an ideal solution. Especially in parts of buildings below ground level as underground garages and basements.
The FERBOX® reverse bending connector joins two reinforced concrete components statically or structurally. To seal the resulting construction joint and thus prevent water from passing through the joint, another box with PENTAFLEX® seam sheet is installed between two single-row FERBOX® storage boxes - the PENTAFLEX® Modul. The seam sheet has a special coating on both sides which, in conjunction with the fresh concrete, reliably prevents water from infiltrating the joint. In this way, proven PENTAFLEX® technology ensures water impermeability of construction joints with backbend connections.


  • The PENTAFLEX® special coating on both sides provides a safeguard against water permeability
  • Simple installation

Technical Details

  • Flashing box made from profiled steel sheeting
  • B500B reinforcement rods (6 - 14 mm in diameter)
  • Plastic cover
Whatever you plan.

We accompany you with expert advice, for every application. For day-to-day work in which much becomes easier and for increasing gratification in successful results.

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