Bentorub®+ is a green flexible hydrophilic strip of approx. 25 by 20 mm, made of natural sodium bentonite clay and synthetic rubber. Bentorub®+ is manufactured in lengths of approx. 5 metres. The swelling properties are created by the particle structure of the clay. In contact with water and in confined conditions, Bentorub®+ will swell to approximately 4V and create a waterproofing pressure inside the joint. The expansive clay mass will thus seal these hair line cracks and voids in the joint. The first expansion is delayed to prevent the strip from reacting too soon with possible rainwater, before or during the installation
Product code : 82ABRP
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