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VELOSIT® WS 801

Highly Swellable Joint Waterstop

VELOSIT WS 801 is a water swellable waterstop used for waterproofing of construction joints.

1 000 % (Vol.) swelling capacity, fully reversible for an unlimited number of cycles
Dimensional stable, no wash-out like with Bentonite waterstops
Retarded swelling, volume increase starts several hours after water contact
Swelling pressure of > 5 bar (73 psi), extreme resitance against hydrostatic pressure
Resists 50 m (160 ft.) water pressure acc. to EN 12390-8
Meets and/or exceeds all requirements ASTM C 923, including physical properties of materials and performance testing

Waterproofing of construction joints between different concrete pours
Waterproofing of saw cut joints
Waterproofing of pipe penetrations
Waterproofing of the wall-slab joint
Swellable waterstop for the treatment of construction joints between concrete pours
VELOSIT WS 801 swells even with sewage water containing elevated salt loads

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