Swellable Thermoplastic Gasket for Segmental Structures
VELOSIT WS 805 is a swellable gasket manufactured from a blend of proprietary thermoplastics and swelling agents compounded toproduce a re-swellable seal of unique swelling ability.VELOSIT WS 805 is used to seal joints between pre-cast segments.
Properties
Profile includes 2 protrusions to form double parallel compressible sealing lines
1000 % swelling capacity; fully reversible for an unlimited number of cycles
High water retention means delayed shrinkage when dry
Dimensionally stable; does not wash-out like Bentonite waterstops
Delayed swelling; volume increase starts after approx. 2 weeks of contact with water allowing water curing of precast units and/or placing of segments and pipes in wet conditions
Swelling pressure resistant to 5 bars (73 psi) hydrostatic water pressures up to 50 m (160 ft.) acc. to EN 12390-8
Extremely flexible: easily bent to take the shape of concrete segment
Typical Application Areas
Sealing between pre-cast segments
Sealing between potable water pipes
Sealing sewage & wastewater pipes
Waterproofing of wall/slab joints
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