Description: Hydroswell Bentostrip is a green flexible hydrophilic strip, which is made of natural sodium bentonite clay and synthetic rubber. Dimensions 20mm x 25mm. Due to the shrinkage of the drying concrete, small cracks and voids will appear in the construction and cold joints, through which water can penetrate. In contact with water, Hydroswell Bentostrip will swell approximately 400% of its original dry volume. The expansive clay mass will thus seal these hairline cracks and voids in the joint. The first expansion is retarded to prevent the strip from reacting too soon with possible rainwater, before or during the installation. Uses: Sealing construction joints and cold joints in concrete Sealing around cast in pipe penetrations Sealing to sheet piling and around steel columns, H beams etc.
