Superswell 47B - High Expansion Butyl Bentonite Hydrophilic Waterstop

Superswell 47B is a high expansion butyl bentonite based hydrophilic waterstop for sealing joints between concrete. Ideal for non-movement joints such as horizontal construction joints between floor slabs and cast in situ walls including lift overrun pits and retaining walls. Requires no site welding, easy to handle, conforms to irregular surfaces, and requires no special handling instructions as it is non-toxic.