Duraswell AC

Duraswell AC is the ultimate solution for waterproofng concrete construction joints.
Duraswell AC used instead of conventional swelling waterstops, or as part of the Drylex Waterstop
System (DWS).
Through its unique synthetic rubber technology, Duraswell AC swells up to 4 times more than ordinary
rubber or bentonite swelling waterstops and produces enough swelling pressure to withstand extreme
hydrostatic pressure – even when exposed to salt water or when used in chloride or sulfate
contaminated soils.
Despite its extraordinary swelling ability, Duraswell AC is specially engineered so that swelling action
occurs after the concrete has gained sufficient strength. This controlled swelling eliminates the risk of
cracks or voids in the concrete that may occur if the swelling was uncontrolled.
Duraswell AC is easy to install and its innovative trapezoid shape resists dislodgement during concrete
or shotcrete installation. Its unique shape also allows better consolidation of the concrete around the
waterstop, while the bright red color makes for easy inspection.
Duraswell AC provides confdence that your projects jointing system will be waterproof for the life of the
concrete.