Hydrophilic Swelling Rubber BPA-CEMswell
Hydrophilic Swelling Rubber BPA-CEMswell is an expanding joint sealing profile which swells, while remaining dimensionally stable, on contact with water and is primarily used for the sealing of joints in prefabricated concrete elements for use in the construction of basements, tunnels and mine shafts. In its round form, BPA-CEMswell can be used to successfully seal tie-bolt holes.
BPA-CEMswell has been developed for the successful sealing of joints up to 5 bar water pressure. BPA-CEMswell is available in various standard sizes but also can be extruded in any user-defined shape and size.
Hydrophilic swelling rubber BPA-CEMswell
BPA-CEMswell is an extruded TPE-based alloy made from rubber, hydrophilic resin, polyethylene, silicon and special admixtures. On contact with water it is capable of swelling up to 4 times its own volume and under conditions of confinement will mould itself to the surrounding surfaces producing a water-tight seal.
The sealing effect is attained through the developing swelling pressure even if the surrounding surfaces are rough and the joint gaps to be filled are of an uneven size. BPA-CEMswell is capable of performing multiple swelling cycles.
BPA-CEMswell is approved for the use in waste water, slurry and animal manure.
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